[Adachi-ku, Tokyo] Vacant & Used Homes: Renovation Costs, Grants & Projects
For those considering renovation of used properties and vacant houses in Adachi-ku
I bought a used property, but I’m not sure if the renovation estimate I received is reasonable.
This is my first full renovation, and I’m worried about making mistakes.
I want to make the most of subsidies and grants.
Kakeru Koumuten Co., Ltd., which serves Aoba-ku, Yokohama, will clearly explain the key points for a successful renovation to address these concerns.
Let’s compare estimates, guarantees, and proposals from multiple companies
01Reasons for the Increase in Renovations of Used Properties and Vacant Houses in Aoba-ku
Aoba-ku, Yokohama, is a city where wooden detached houses and apartments are prevalent, centered around areas like Kitachijo and Nishiarai. Located north of the Arakawa River, it offers the charm of a traditional town and the convenience of the redeveloping Kitachijo.
For older wooden houses, it is important to check earthquake resistance, flood prevention measures, and insulation performance. In Aoba-ku, there is the option to “buy a used wooden detached house and renovate it to suit your lifestyle.”
Residential Areas of Kitachijo and Nishiarai
The redeveloping Kitachijo and the expanding residential area around Nishiarai. Renovating a used wooden detached house to continue living in it is also one option.
District Subsidies for Earthquake Resistance
For wooden houses that meet the eligibility requirements, there may be subsidies available for earthquake renovation costs covering 90% of the expenses, up to 1.5 million yen (2 million yen for specific areas).
Disaster Prevention Awareness in Low-Lying and Wood-Dense Areas
In areas with low land and dense wooden structures, it is important to review earthquake resistance, flood prevention, and fire safety. Renovations that consider disaster prevention are being chosen.
Be Aware of the “Boundary” of New Earthquake Resistance Standards
The earthquake resistance of used houses varies greatly depending on the construction period. It is crucial to determine whether it was built before the standard revisions of 1981 and 2000.
This article summarizes the reasons, points to consider, cost estimates, the latest subsidies for 2026, and how to choose a contractor, based on Kakeru Koumuten’s building inspections and construction experience, for those considering renovating used properties or vacant houses in Adachi-ku to ensure they do not “fail.”
Let’s Compare Conditions with Multiple Estimates
To prevent failures in renovations, it is important to obtain multiple estimates from different companies and compare not only the prices but also the scope of work, materials used, warranties, and additional costs. Kakeru Koumuten also offers consultations and on-site inspections for renovations of vacant houses and used properties.
02Reasons for Renovating Vacant Houses and Used Properties
In recent years, the Japanese housing market has expanded options not only for new constructions but also for utilizing renovated used properties. There is a growing interest in the lifestyle of purchasing and renovating used houses. Here, we will explain the typical reasons for renovating vacant houses and used properties.
Reason 1 To Live Comfortably as Your Own Home
A typical reason for purchasing and renovating a used property is “to live comfortably.” In older homes, there may be issues with the roof, exterior walls, or plumbing. By renovating and updating the facilities and interior, you can create a comfortable living environment. It is necessary to check the total cost, including the property price and construction costs, but changes in the layout and refreshing the interior can result in a home that suits your family’s lifestyle.
Reason 2 To Increase Asset Value for Sale
There is also the option of purchasing and renovating a used property for the purpose of resale. The effectiveness varies depending on the condition of the building, location, and scope of work, but necessary repairs and updates can enhance both appearance and performance, making it easier to convey the condition to potential buyers.
Reason 3 To Utilize as an Investment or Business
When utilizing used properties for investment or business purposes, renovations tailored to the condition and intended use of the building are necessary. If you convert it into rental housing or a share house, it may differentiate itself from other properties depending on location, demand, and business plans. Depending on the intended use and conditions, there may also be potential for subsidies or tax incentives, but it is important to confirm any changes in use, legal procedures, and financial plans in advance.
03Points to Consider When Renovating Vacant Houses and Used Properties
Point 1 Choose a Reliable Construction Company
First and foremost, it is essential to select a contractor you can trust to handle your renovation with peace of mind. Since used properties have had previous occupants, the internal structure and condition are often not clear until you actually see them. Choose a contractor who can perform the work thoroughly according to your wishes, the structure of your home, and the surrounding environment, and who also provides aftercare following the construction.
Point 2 Always Check the Condition of the Building
For used properties and vacant houses, it is crucial to check which parts have deteriorated and to what extent beforehand. Since the property has been lived in by someone else, internal damage is often not apparent without investigation. Make sure to understand any hidden deterioration through a current condition survey before starting the work.
Point 3 Review Earthquake Resistance and Insulation Performance
Particularly important in the renovation of used and vacant houses is the review of earthquake resistance and insulation. The earthquake resistance standards were significantly revised in 1981, and homes built before that may not meet current standards. Furthermore, in 2000, regulations regarding joints and foundations were strengthened, making older buildings more likely to lack earthquake resistance. Check the condition of the building before starting work and be sure to check the earthquake resistance and insulation performance.
Point 4 Check Subsidy Programs and Renovation Tax Deductions
To keep construction costs down, it is important to check for subsidies and renovation tax deductions. Subsidies are provided by the national and local governments, supporting part of the costs for earthquake retrofitting, energy-saving construction, and barrier-free renovations. Tax deductions include the “housing loan tax deduction” when using a mortgage, and there are systems where part of the costs can be deducted for certain works even with personal funds. These can sometimes be used together, so checking in advance and planning to utilize them strategically is key to a successful renovation (for the latest information, see this subsidy section).
04 Cost Estimates for Renovating Vacant Houses and Used Properties
The renovation costs for used properties and vacant houses vary significantly depending on the extent of damage and the scope of work. First, please understand the approximate costs by area to serve as a guideline for your financial planning (the table below provides general estimates for single-family homes. The interior is based on a room of about 6 tatami mats, and the exterior is based on the indicated scope of work. Actual estimates will be provided after a site survey).
1. Roof and Exterior Walls
| Construction Content | Estimated Cost |
|---|---|
| Roof Repair & Painting | Approx. 200,000 – 800,000 yen |
| Roof Replacement & Overlay Method | Approx. 700,000 – 2,500,000 yen |
| Exterior Wall Painting | Approx. 600,000 – 1,500,000 yen |
| Exterior Wall Replacement & Overlay Method | Approx. 1,500,000 – 3,000,000 yen |
2. Interior (Interior Finishing)
| Construction Content | Estimated Cost |
|---|---|
| Floor Replacement (Approx. 6 tatami mats, Flooring, etc.) | Approx. 100,000 – 300,000 yen |
| Wallpaper Replacement (Approx. 6 tatami mats) | Approx. 50,000 – 150,000 yen |
| Ceiling Repair & Painting (Approx. 6 tatami mats) | Approx. 30,000 – 100,000 yen |
| Renovation from Japanese-style Room to Western-style Room (1 Room) | Approx. 200,000 – 600,000 yen |
3. Water-related Facilities
| Construction Content | Estimated Cost |
|---|---|
| Kitchen Replacement | Approx. 450,000 – 1,500,000 yen |
| Bathroom Renovation (Unit Bath) | Approx. 600,000 – 1,500,000 yen |
| Toilet Replacement | Approx. 120,000 – 500,000 yen |
| Vanity Replacement | Approx. 80,000 – 300,000 yen |
4. Equipment & Infrastructure
| Construction Content | Estimated Cost |
|---|---|
| Water Heater Replacement | Approx. 100,000 – 500,000 yen |
| Pipe Replacement (Aging Water Pipes, etc. – Partial Work) | Approx. 100,000 – 500,000 yen |
| Electrical Wiring Work (Partial Work) | Approx. 100,000 – 500,000 yen |
| Insulation Renovation (Replacement of Multiple Windows, Installation of Inner Windows, etc.) | Approx. 200,000 – 1,000,000 yen |
5. Waterproofing & Earthquake Resistance
| Construction Content | Estimated Cost |
|---|---|
| Balcony Waterproofing Work | Approximately 100,000 to 400,000 yen |
| Seismic Reinforcement Work | Approximately 500,000 to 2,000,000 yen |
6. Exterior Works
| Construction Content | Estimated Cost |
|---|---|
| Entrance Door Replacement | Approximately 200,000 to 500,000 yen |
| Gate and Fence Renovation | Approximately 200,000 to 800,000 yen |
| Parking Lot Development (for 1 car, including concrete pouring, etc.) | Approximately 200,000 to 600,000 yen |
*The above are general estimates. Costs may vary depending on the presence of scaffolding, the condition, grade, and area of the building. Waterproofing for rooftops and updates to plumbing and wiring for the entire house may exceed the above estimates based on area and method. Please confirm the exact costs through a free on-site survey and estimate.
Please see the construction menu and price list for more details!
05[Latest 2026] Subsidies and Grants Available in Adachi Ward
One way to renovate used properties and vacant houses affordably is to utilize the subsidy and grant system. As of 2026, we have summarized the main systems that residents of Adachi Ward may be able to use.
*The following information is as of September 1, 2026. The content, duration, and budget of the systems change annually, and many will end once the budget limit is reached. Please check the latest information and contractor requirements with the official contact points for each system before contracting or starting work. Kakeru Koumuten can assist with confirming systems and providing necessary documents, but the application methods and applicants may vary by system.
National Program: Housing Energy Saving 2026 Campaign
The government is implementing multiple subsidy projects targeting energy-saving renovations under the “Housing Energy Saving 2026 Campaign.” Construction for insulation, windows, and water heaters may be eligible for these subsidies.
This program is a successor to the “Child-Rearing Green Housing Support Project.” In principle, it requires renovation work that includes insulation for openings (windows) and the building structure, and it covers eco-friendly housing equipment, child-rearing compatible renovations, disaster prevention improvements, and barrier-free renovations.
Subsidy upper limit guidelines: For buildings constructed before 1991, up to 1 million yen per unit (500,000 yen depending on the work content); for buildings constructed between 1992 and 2016, up to 800,000 yen per unit (400,000 yen for the same). Eligible construction must start on or after November 28, 2025, and applications for grants must be submitted by December 31, 2026, at the latest (early termination may occur if the budget limit is reached). Applications must be made by registered contractors. For more details, visit the official page.
This program covers insulation renovations for windows, including the installation of interior windows, replacement of exterior windows, and glass replacement. The subsidy amount is significant and effective for countering cold, heat, and condensation. It can easily enhance the insulation performance of existing homes.
The subsidy amount varies based on the window construction method, performance, size, and the type of house. If the total subsidy amount for one application is less than 50,000 yen, it is not eligible. Applications for grants must be submitted by December 31, 2026, at the latest (early termination may occur if the budget limit is reached). Applications must be made by registered contractors. For more details, visit the official page.
This program targets the replacement of high-efficiency water heaters such as eco-cute, hybrid water heaters, and EneFarm. It is well-suited for existing properties planning to replace their water heaters.
Subsidy amount guidelines: Eco-cute 70,000 to 100,000 yen per unit, hybrid water heaters 100,000 to 120,000 yen per unit, EneFarm 170,000 yen per unit. Eligible construction must start on or after November 28, 2025, and early termination may occur if the budget limit is reached. For more details, visit the official page.
Tokyo Metropolitan Program
High insulation windows (installation of inner windows, replacement of outer windows, glass replacement), high insulation doors, insulation materials, and high insulation bathtubs are eligible. This is a system with a substantial subsidy amount that can significantly enhance the insulation performance of existing homes.
High insulation windows and doors have a subsidy limit of 2,000,000 yen per unit based on performance and size (for security windows, the limit is 3,000,000 yen per unit), insulation materials cover 1/3 of eligible expenses with a limit of 1,000,000 yen, and high insulation bathtubs are 95,000 yen per unit. Individuals and corporations owning residential properties in Tokyo are eligible. For details on application periods and eligible products, please visit the official page of Cool Net Tokyo.
This system provides points for replacing with energy-efficient air conditioners, refrigerators, water heaters, and LED lighting. It pairs well with equipment updates when moving into used properties.
Estimated points: Air conditioners 9,000 to 23,000 yen, refrigerators 14,000 to 26,000 yen, water heaters (EcoCute, etc.) 12,000 points, LEDs 4,000 yen, etc. Replacements are valid until March 31, 2027. Individuals residing in Tokyo are eligible. For details, please visit the official page.
This program broadly supports the introduction of solar power generation, storage batteries, high insulation windows, insulation materials, EcoCute, etc., to existing homes. It is aimed at those considering used properties with energy-saving equipment.
Storage batteries are subsidized at 100,000 yen per kWh in packages, with a limit of 1,200,000 yen per unit. Solar power, insulation, and high-efficiency water heating are also subsidized by type of work (unit prices to be confirmed). All are applicable to existing homes. Applications are currently being accepted for the fiscal year 2026. For details, please visit the official page.
Adachi Ward Programs
For wooden houses that meet the eligibility requirements, Adachi Ward supports earthquake resistance renovations at 90% of construction costs. If you are purchasing a used wooden house, be sure to check the construction date and subsidy eligibility before signing the contract.
Seismic retrofitting work within 9/10 of the cost, with a maximum of 1.5 million yen; for designated areas promoting non-combustibility and maintenance, the maximum is 2 million yen. Free seismic advisors are available. Eligible properties are wooden buildings constructed before May 1981 (including those built under the new seismic standards). Prior consultation and application are required. For more details, visit the official page of Adachi Ward.
This is a ward program for those looking to install solar power and storage batteries in conjunction with renovations of used properties.
Solar power 60,000 yen/kW; maximum 240,000 yen (when using local contractors, 72,000 yen/kW; maximum 288,000 yen), storage battery maximum 50,000 yen (when using local contractors, 60,000 yen). The second phase for fiscal year 2026 will accept applications from July 1 to September 30. Kakeru Koumuten Co., Ltd. is a contractor outside Adachi Ward, so the standard amount without local contractor additions applies. For more details, visit the official page of Adachi Ward.
Support is provided for renovations of elderly housing, cutting or removing dangerous block walls, and installing fences that meet certain conditions.
The long-term care insurance housing renovation has a subsidy limit of 200,000 yen, with a general self-burden of 10-30%. The elderly housing renovation project includes preventive benefits (limit 200,000 yen) for those not covered by long-term care insurance, as well as equipment benefits for bathtubs and toilets. The block wall cutting work is based on the “length of the target x 20,000 yen” or the lower of the tax-excluded construction cost, while fence installation is based on the “length of the target x 30,000 yen” or three-quarters of the tax-excluded construction cost. Prior application is required for both. For more details, please check Long-term Care Insurance Housing Renovation, Elderly Housing Renovation, and Block Wall Cutting Work Subsidy.
* The “Housing Improvement Grant (General Renovation 20% / Maximum 300,000 yen)” and “Energy-Saving Renovation Subsidy” in Adachi-ku are conditional on construction by local contractors, so Kakeru Koumuten Co., Ltd. (Aoba-ku, Yokohama) is generally not eligible. The Energy-Saving Renovation Subsidy ended on August 21, 2026. For seismic retrofitting, solar power subsidies, and the national “Housing Energy-Saving 2026” and Tokyo Metropolitan programs, we will provide guidance after confirming the conditions for each target group, contractor, and application period.
View information on renovation tax reductions and other programs
- Housing Loan Tax Reduction: If you use a housing loan for renovations that meet certain requirements, income tax and other deductions will be applied based on the year-end balance.
- Renovation Promotion Tax System (Investment-Type Tax Reduction): For construction related to seismic resistance, energy-saving, barrier-free, and long-term excellent housing, there may be cases where income tax deductions can be received even with personal funds.
- Reduction of Fixed Asset Tax: There is a system that reduces fixed asset tax for a certain period for seismic retrofitting, energy-saving renovations, and barrier-free renovations.
- Tokyo’s Insulation and Energy-Saving Subsidy: The above “Tokyo Metropolitan Program” (energy-saving renovation promotion project for existing homes, Tokyo Zero Emission Points, etc.) may be combined with the national “Housing Energy-Saving 2026 Campaign.” If you are considering construction for windows, insulation, or high-efficiency equipment, please consult us before starting work.
While subsidies and tax reductions can sometimes be combined, there are restrictions on duplication for the same construction. Kakeru Koumuten will organize and propose “which programs can be used for your construction” after conducting a site survey.
06Customer Voices
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customer reviews
Asao-ku, Kawasaki City | We received reviews about the ridge cap and rain gutter replacement work!
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customer reviews
Kohoku-ku, Yokohama | We received reviews about the roof overlay (cover method)!
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customer reviews
Kohoku-ku, Yokohama | We Received Reviews About Exterior Painting!
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customer reviews
Hodogaya-ku, Yokohama | We received reviews about our exterior fence construction!
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customer reviews
Tsurumi-ku, Yokohama | We received reviews about roof and exterior wall painting, as well as metalwork and rain gutter replacement work!
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customer reviews
Higashiyamato City, Tokyo | We received reviews about exterior painting and roof overlay (cover method)!
Examples of Roof Replacement Work in Adachi-ku
| Construction Location | Adachi-ku, Tokyo |
|---|---|
| Work Details | Temporary scaffolding installation / Existing tile roof removal / Roof replacement work |
| Existing Roofing Material | Tile roof |
| New Materials Used | Ai-G Co., Ltd. Super Galtect |
| Price Range | 800,000 to 900,000 yen (tax included) |
| Completion Month | July 2022 |
Our Proposal
Considering measures against leaks and the lightweight nature of the roof, we proposed the removal of the existing tile roof and replacement with Super Galtect. Since tile roofs are not suitable for the roof overlay method that directly overlaps the existing roof, we adopted the replacement work in this case. By changing to a lightweight metal roof with integrated insulation, we reduced the burden on the roof while also considering insulation and durability.
07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Ada-ku
There are many renovation companies that serve Ada-ku, and it can be confusing to decide which one to choose. When requesting renovations, be sure to check the following five points.
- Rich experience in renovation work
- Check for warranties and after-sales maintenance
- Obtain estimates from multiple contractors
- Confirm the construction system and responsibility
- Check if they can provide color simulations and perspective drawings
1. Rich experience in renovation work
Many renovation contractors publish their work achievements on their websites. If a contractor provides detailed explanations of the process with photos, it makes it easier to visualize the work after hiring, which is reassuring. If you have concerns, choose a contractor with rich experience.
Google and review sites are also helpful. It is important to check the content of low ratings, the company’s responses, and the timing of the posts. In particular, Google reviews are useful, but do not decide solely based on reviews; make a comprehensive judgment along with work achievements, estimates, and warranty details.
2. Confirm the presence of warranties and aftercare services
When choosing a contractor, be sure to check for the presence of warranties. If repairs are needed within the warranty period, they may be done for free. The duration varies by contractor and paint type, but typically ranges from 1 to 10 years (emergency repairs and partial repairs are often not covered). Some contractors also offer aftercare services separately, so be sure to check that as well.
Kakeru Koumuten Co., Ltd. provides warranties based on the content of the work, materials used, and scope of construction for exterior renovations and sealing work. Some projects may not be covered by the warranty, so please confirm the duration and conditions at the time of your estimate. We also provide information on aftercare services.
Click here for more details on Kakeru Koumuten’s warranties and aftercare services
3. Obtain estimates from multiple contractors
When requesting renovations, be sure to obtain estimates from multiple contractors. Even for the same scope of work, warranties, aftercare services, and costs can vary significantly. Having multiple estimates makes it easier to negotiate prices.
When comparing estimates, it’s important to look at not just the costs, but also the “items in the estimate,” “check the undercoating materials, sealing materials, and additional paint,” and “confirm the process” in detail. Lowering the rank of additional components or skipping steps can reduce costs, so it’s important not to judge solely based on price.
Click here for detailed points on comparing estimates
4. Confirm the construction system and responsibility
Kakeru Koumuten Co., Ltd. conducts detailed hearings and investigations regarding the existing “condition,” “location,” “base materials,” “desired durability,” and “design” to propose the optimal plan. While there is nothing inherently wrong with a system where partner companies perform the work, it is important to confirm whether the contracting company understands the scope of work and has clearly defined responsibilities for quality control and warranties . If the work is done in-house, it is easier to coordinate with the site and respond quickly in case of any issues.
5. Check if they offer color simulations and perspective drawings
Choosing colors and visualizing the finished look can be challenging for both exterior and interior projects. With simulations, you can reduce the risk of disappointment from “it looks different than I imagined.” Since it’s difficult to redo once the work is done, it’s recommended to choose a company that can provide flexible simulations.
08Reasons Kakeru Koumuten is Chosen for Renovations of Used Houses in Adachi-ku
Kakeru Koumuten also serves Adachi-ku, providing
a clear system from on-site surveys to construction management and aftercare
for renovations of vacant houses and used properties.
For renovations in Adachi-ku, we clearly present “cost,” “quality,” and “plans”. Please compare our estimates with those from other companies.
When obtaining multiple estimates, be sure to check not only the price but also the scope of work, materials, warranties, and conditions for additional costs.
1. Equipment Specialized for In-House Renovations
Kakeru Koumuten has established five bases including a showroom in Aoba-ku, Yokohama, a Machida store, and material storage in Aoba-ku and Asahi-ku to efficiently advance renovation projects.
In-House Scaffolding Materials
For exterior renovations, temporary scaffolding is essential, and we can construct it using our own scaffolding materials and in-house scaffolding team. By not outsourcing, this leads to cost savings on scaffolding work. We own scaffolding materials for approximately 50 detached houses.
Materials stored in our large in-house warehouse
We store roofing materials, paints, and construction equipment. By purchasing materials in bulk and utilizing our inventory according to the site, we reduce procurement costs and lead times.
In-house waste separation
In exterior renovations, various waste materials such as paint, wood, and metal are generated. While many contractors dispose of them together, we significantly cut waste disposal costs by separating and recycling waste materials.
Showroom dedicated to exterior renovations
In our showroom, you can not only have meetings but also check the actual paint colors and a wide variety of catalogs. You can also confirm heat resistance using a heat-resistant paint testing machine and color simulation. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama. It is also accessible from within Tokyo.
2. Consistent System Focused on Exterior Work
Kakeru Koumuten Co., Ltd. has established a clear system from inquiries to on-site surveys, estimates, construction management, and completion confirmation. We primarily handle exterior work such as temporary scaffolding, roofing, and exterior wall painting in-house, and when collaborating with specialized partner companies for interior work or housing equipment, Kakeru Koumuten will manage and serve as the contact point. The scope of work and responsible system will be explained in the estimate.
3. Various Permits and Skilled Workers
We have obtained construction industry licenses and permits for industrial waste collection and transportation. We also have nationally certified sheet metal workers and painting technicians, ensuring confidence in our construction techniques. We are capable of handling large-scale painting projects for factories and apartment complexes as well.
4. Warranty and Aftercare Maintenance
We provide warranties tailored to the scope of work and materials used for exterior wall painting and joint sealing projects. We also offer aftercare maintenance guidance. Since the coverage, duration, and disclaimers vary by project, please check the warranty details from the image above.
5. Flexible and Prompt Response
We are equipped to handle various exterior issues and situations. Even if you cannot access the roof at height, we can respond using a drone. For leak investigations, we also use a thermal imaging camera. We respond according to our customers’ wishes and also accept emergency measures for sudden leaks from exterior walls only.
6. Human Resource Development
We create various models for skill enhancement and conduct practical training. Since exterior renovations differ in construction methods and materials based on existing materials and shapes, we regularly implement technical improvement training to ensure each staff member can handle various sites.
Click here for company information
7. Flexible Simulations for Both Exterior and Interior!
Kakeru Koumuten is dedicated to helping you choose colors and designs for your important building renovations, ensuring your satisfaction for both exterior and interior work.
7-1. Exterior Renovation Simulation
We can create color simulations for exterior wall painting, as well as simulations for metal siding and roof overlays. We can generate simulations from actual photos of your building and propose several patterns with our recommended color combinations. We also accommodate “test painting” and “sample board arrangements” to confirm the actual colors.
7-2. Interior Renovation Simulation
We also support simulations and perspective drawings for interior renovations. Based on your preferred style, such as modern, we will suggest recommended simulations. We create realistic perspectives from actual floor plans.
8. We also handle solar panel and battery installation work!
When renovating a used property, you may consider installing solar power systems. Kakeru Koumuten Co., Ltd. also handles solar power installation work, suggesting solar panels that fit the roof shape and sunlight conditions. Since there are conditions for subsidy systems, such as eligible equipment, application timing, and contractors, it is necessary to confirm these before signing a contract. Please feel free to consult us about estimates and power generation simulations.
09Renovation of Used Properties and Vacant Houses in Adachi-ku | Frequently Asked Questions
We will answer the most frequently asked questions from those considering the renovation of used properties and vacant houses in Adachi-ku.
Is it better to renovate after buying a used property or consult before buying?
If possible, please consult us before making a purchase decision. Used properties often have deterioration that is not visible, and it is not uncommon to encounter cases where “unexpected construction costs arose” after purchase. By having Kakeru Koumuten check the condition of the property you are considering in advance and provide an estimate of necessary renovations, you can create a feasible financial plan.
What renovations should be prioritized for a used wooden house in Adachi-ku?
It depends on the condition of the building, but we prioritize areas that can lead to further damage if left unattended, such as leaks, termites, and structural or seismic issues. After that, we will determine the order of renovations for roof and exterior walls, water areas (kitchen, bathroom, toilet), and insulation based on your budget and impact on daily life. In residential areas with many wooden houses, the roof and exterior walls often reach the end of their lifespan first, so we recommend starting with a comprehensive inspection of the entire building, including the exterior.
I bought a used wooden house in Adachi-ku. Is the support for seismic reinforcement substantial?
If you meet the eligibility requirements, the seismic retrofitting subsidy for wooden houses in Adachi-ku is 90% of the construction cost, with a maximum of 1.5 million yen (2 million yen for specific areas), and there is also a free seismic advisor dispatch available. There are also subsidies for solar power and storage batteries. On the other hand, the district’s “Housing Improvement Subsidy” and “Energy-saving Renovation Subsidy” require that the work be done by contractors within the district, so Kakeru Koumuten is generally not eligible. Since the requirements differ for each program based on the construction period, diagnosis results, and contractors, please consult with Adachi-ku before signing a contract.
How much does a full renovation (full remodeling) cost?
The cost of a full renovation for a detached house varies greatly depending on the scope and grade. If focusing on partial renovations, it typically starts from around 5 million yen, while large-scale renovations that include interior and exterior work, water areas, insulation, and seismic upgrades can exceed 10 million to 20 million yen. We will first conduct a site survey to assess the condition and propose a prioritized plan that fits your budget.
Do I need to apply for subsidies myself? Is the process difficult?
The applicant varies depending on the program. For example, the national “Mirai Eco Housing 2026 Project” has a system where registered contractors (construction companies) apply. For seismic retrofitting or home modifications under long-term care insurance in your city or ward, the application is generally made by the homeowner, but we will guide you through the necessary documents and process. We will organize and inform you about “which programs are available,” so please feel free to consult with us first.
What risks are there if I leave a vacant house unattended?
Risks include the progression of leaks and termite damage, depreciation of asset value due to deterioration of exterior walls and roofs, and neglect of garden trees and equipment. Additionally, if you receive a recommendation from the municipality as a “poorly managed vacant house” or “designated vacant house,” there is a possibility that the special exemption for residential land from property tax will be revoked. Early inspection and necessary work according to your plans to live in, rent, sell, or utilize the property can ultimately help reduce costs.
I am worried about seismic resistance. How can I assess the seismic resistance of a used detached house?
The construction period is a significant indicator. Check if it was built after June 1981 (new seismic standards), and further if it was built after June 2000 (strengthening of joint and foundation regulations). For wooden houses built before that, we recommend a seismic diagnosis. There are subsidies for seismic retrofitting for wooden houses in your city or ward, and if eligible, you can significantly reduce costs (for details, see the subsidy section above). Kakeru Koumuten can assist you from diagnosis to renovation.
Will I need temporary housing during construction? How long will it take?
It depends on the scope of the work. Exterior renovations and partial interior work can often be done while you remain in your home, but for large-scale full renovations that include water areas, we may recommend temporary housing. The estimated duration is about 2 to 4 weeks for exterior work and about 1 to 3 months or more for full renovations. We will provide a schedule in advance and propose a plan that minimizes the impact on your daily life.
Is Adachi-ku within your service area? Will there be travel costs?
Yes, Adachi-ku is within the service area of Kakeru Koumuten Co., Ltd. Our headquarters is located in Aoba-ku, Yokohama, and we utilize material storage sites and showrooms within Yokohama city, as well as our Machida store, to handle construction projects in Tokyo and Kanagawa Prefectures. The costs and conditions for on-site surveys and estimates will be provided in advance after confirming the details of your request and the location of the building.
Leave your renovations in Adachi-ku to Kakeru Koumuten!
“I want my renovation to last a long time with just one project,” “I want to keep costs as low as possible,” “I want to improve insulation because my room is hot”—we will listen to your specific requests and explain the necessity and priority of the work based on the condition of the building and your budget.
We welcome comparative estimates. Please compare the scope of work, materials, and warranties.
Get a free estimate or consultation here
Please request our services after you are satisfied with our proposal.
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10Features of Adachi-ku
Adachi-ku, Tokyo, is a residential area centered around Kitasenju and Nishiarai, characterized by many wooden detached houses and apartments. Located on the north side of the Arakawa River, it offers the charm of a downtown lifestyle along with the convenience of redevelopment in Kitasenju.
For older wooden houses, it is important to check seismic resistance, flood prevention measures, and insulation performance. Kakeru Koumuten is headquartered in Aoba-ku, Yokohama, and we undertake exterior and interior renovations in Kanagawa and Tokyo Prefectures. We primarily handle exterior work in-house, while for interior and housing equipment, we collaborate with specialized partner companies as needed.
Areas We Serve for Renovations
Kakeru Koumuten accepts requests throughout Kanagawa and Tokyo Prefectures.
Service Area in Adachi-ku, Tokyo (Main Areas)
Aoi / Adachi / Ayase / Iko / Ikohommachi / Iriya / Iriyamachi / Umejima / Umeda / Ogi / Otayada / Okino / Kodai / Kaga / Kapei / Kitakapeimachi / Kurihara / Koudou / Kouhoku / Furuchiya / Furuchiyahommachi / Sano / Saranuma / Kahama / Shimane / Nitta / Shinmei / Shinmeiminami / Sekihara / Senju / Senjuakabochou / Senjuasahichou / Senjuhigashi / Senjuookawamachi / Senjukawaramachi / Senjusujimachi / Senjusakuragi / Senjusekiyamachi / Senjudaitachou / Senjunakai / Senjunakamachi / Senjubashidomachi / Senjumidorimachi / Senjumiyamoto / Senjumotomachi / Senjuyanagimachi / Takenotsuka / Tatsunuma / Chuuouhonmachi / Tsubaki / Towa / Toneri / Tonerikouen / Tonerimachi / Nakagawa / Nishiyayase / Nishiarai / Nishiaraisakaemachi / Nishiaraihonmachi / Nishiiiko / Nishiiikomachi / Nishikapei / Nishitakenotsuka / Nishihokima / Hanabatake / Higashiyayase / Higashiiiko / Higashihokima / Higashirokugatsu / Hitotsuya / Hinodechou / Hirano / Hokima / Hozuka / Horinouchi / Minamihanabatake / Miyagi / Rokuki / Motoki / Motokihigashimachi / Motokinanchou / Motokikita / Taniaike / Yamanaka / Yanagihara / Rokugatsu / Rokumachi and other areas throughout Adachi-ku
・Roof Repair and Roof Remodeling in Adachi-ku
・Exterior Remodeling in Adachi-ku
・Exterior Wall Painting in Adachi-ku
・Leak Repair in Adachi-ku
・Waterproofing Work in Adachi-ku
・Exterior Wall Covering Work in Adachi-ku
・Rain Gutter Repair and Cleaning in Adachi-ku
・Skylight Repair and Replacement in Adachi-ku
・Solar Panel Installation Work in Adachi-ku
・Large-Scale Repairs for Condominiums and Apartments in Adachi-ku
・Interior Remodeling Case Studies in Adachi-ku
・Kakeru Koumuten’s Remodeling Case Studies Here!
・Kakeru Koumuten Co., Ltd. Construction Menu and Price List
・Reasons to Choose Kakeru Koumuten Here!
・About Kakeru Koumuten’s Warranty and Aftercare
・Company Overview of Kakeru Koumuten Co., Ltd.
・Kakeru Koumuten Co., Ltd. Staff Blog & Announcements
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contact Kakeru Koumuten Co., Ltd.
Kakeru Koumuten is a young company whose team is, on average, in their late twenties, but our skills are second to none.
Our greatest strength is that we handle scaffolding, roofing and painting entirely in-house. In an industry where these tasks are usually divided among contractors, our complete service simplifies project management and helps keep costs down. Above all, if a problem arises, we respond promptly.
We proudly describe ourselves as the youngest and most helpful renovation company in Kanagawa!
