[Naka-ku, Yokohama] Renovation of Vacant Houses and Used Properties | Costs, Subsidies, and Case Studies
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Amount: ¥100,000
Available until March 2024
More Information
Details about the subsidy program.
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For those considering renovations of used properties and vacant houses in Naka-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.
For such concerns, Kakeru Koumuten Co., Ltd., which is close to Naka-ku and has numerous achievements, will clearly explain the key points for a successful renovation.
Always obtain estimates from at least 3 companies!
01Reasons for the Increase in Renovations of Used Properties and Vacant Houses in Naka-ku
Naka-ku, Yokohama, is a district rich in history and culture as a port town since its opening, featuring areas such as Kannai, Yamashitacho, Motomachi, Yamate, and Honmoku. It showcases a variety of landscapes, from the historic Western-style houses in Yamate to the urban functions around Kannai and Yamashitacho, and the coastal area of Honmoku.
In areas like Yamate and Honmoku, there are older houses that require consideration for earthquake resistance, insulation improvements, and renovations that take the landscape into account based on the condition of the buildings. Therefore, in Naka-ku, there is an option to “buy a used detached house or condominium and renovate (renovate) it to suit your lifestyle.”
Historic Residential Areas of Yamate and Motomachi
A charming hillside residential area with Western-style houses and greenery. This is a region where renovations of used houses that consider the landscape are being contemplated.
Renovations Considering the Landscape
In areas like Yamate, Kannai, and the New Port area, there are regions with landscape regulations. It is important to check the rules applicable to the exterior wall colors and designs of the properties and to consider harmony with the surroundings while simulating the renovation.
Salt Damage in Coastal Areas like Honmoku
Locations close to the sea, such as Honmoku and Shinyamashita, are prone to rust on metal parts due to sea breezes, making it important to choose materials with rust prevention and weather resistance in mind.
Slopes and Retaining Walls in Elevated Areas
Residential areas in elevated locations, such as Yamate and Minosawa, have significant height differences, requiring checks on retaining walls, slopes, drainage, and considerations for scaffolding and transportation.
This article summarizes the reasons, points of caution, cost averages, the latest subsidies for 2026, and how to choose contractors from the perspective of Kakeru Koumuten, aimed at those considering renovating used properties and vacant houses in Naka Ward without making mistakes.
The Most Important Thing is “Comparative Estimates”
The most crucial factor in avoiding mistakes during renovations is comparative estimates. First, obtain estimates from at least three companies that operate in Naka Ward. Our company, Kakeru Koumuten Co., Ltd., also receives numerous consultations and requests 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 renovating used properties. There is growing interest in living in renovated or refurbished used houses. Here, we explain the typical reasons for renovating vacant houses and used properties.
Reason 1 To Live Comfortably as Your Own Home
The most common reason for purchasing and renovating a used property is “to live comfortably.” Older houses often have issues with roofs, exterior walls, and plumbing, making them less livable as they are. By renovating and updating the facilities and interiors, you can create a comfortable living environment. Additionally, through changes in layout and refreshing the interior, you can achieve a home that suits your family’s lifestyle while keeping costs lower than new construction.
Reason 2 To Increase Asset Value for Sale
More people are purchasing and renovating used properties with the intention of selling them. Used houses are often evaluated as having low asset value as they are, but renovations can enhance their appearance and performance, increasing their value as properties.
Reason 3 To Utilize as Investment or Business
For purchases made for investment or business purposes, renovations are essential. By transforming into stylish rentals or share houses, you can differentiate from other properties, and depending on the location and planning, you can also expect improved profitability. Initial costs can be lower than new constructions, and depending on the use and conditions, there may be cases where subsidies or tax incentives apply, leading to an increase in those utilizing vacant houses for business.
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 the renovation. 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 carry out the work thoroughly according to your wishes, the structure of the house, 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 someone else has lived there before, internal damage is often not apparent without investigation. Conduct a current condition survey before starting work to identify hidden deterioration.
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 houses 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 earthquake resistance and insulation.
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 renovations, and barrier-free modifications. Tax deductions include the “housing loan tax deduction” when using a housing loan, and there are systems that allow for deductions on certain costs even with personal funds. These can sometimes be used in combination, so it is essential to check in advance and plan to utilize them strategically for a successful renovation (for the latest information, refer to this subsidy section).
04Cost 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 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 and Painting | Approximately 200,000 to 800,000 yen |
| Roof Replacement / Roof Overlay Method | Approximately 700,000 to 2,500,000 yen |
| Exterior Wall Painting | Approximately 600,000 to 1,500,000 yen |
| Exterior Wall Replacement / Overlay Method | Approximately 1,500,000 to 3,000,000 yen |
2. Interior (Interior Finishing)
| Construction Content | Estimated Cost |
|---|---|
| Floor Replacement (approximately 6 tatami mats, flooring, etc.) | Approximately 100,000 to 300,000 yen |
| Wallpaper Replacement (approximately 6 tatami mats) | Approximately 50,000 to 150,000 yen |
| Ceiling Repair and Painting (approximately 6 tatami mats) | Approximately 30,000 to 100,000 yen |
| Renovation from Japanese-style Room to Western-style Room (1 room) | Approximately 200,000 to 600,000 yen |
3. Water Facilities
| Construction Content | Estimated Cost |
|---|---|
| Kitchen Replacement | Approximately 450,000 to 1,500,000 yen |
| Bathroom Renovation (Unit Bath) | Approximately 600,000 to 1,500,000 yen |
| Toilet Replacement | Approximately 120,000 to 500,000 yen |
| Vanity Replacement | Approximately 80,000 to 300,000 yen |
4. Equipment and Infrastructure
| Construction Content | Estimated Cost |
|---|---|
| Water Heater Replacement | Approximately 100,000 to 500,000 yen |
| Pipe Replacement (Aging Water Pipes, etc. – Partial Work) | Approximately 100,000 to 500,000 yen |
| Electrical Wiring Work (Partial Work) | Approximately 100,000 to 500,000 yen |
| Insulation Renovation (Replacing Multiple Windows, Installing Inner Windows, etc.) | Approximately 200,000 to 1,000,000 yen |
5. Waterproofing and 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 Maintenance (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 depending 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 Naka Ward
One way to renovate used properties and vacant houses cost-effectively is to utilize the subsidy and grant system. As of 2026, we have summarized the main systems available for residents of Naka Ward.
*The following information is as of September 3, 2026. The contents, duration, and budget of the systems change annually, and many will end once the budget limit is reached. Please check for the latest information with our company or the respective offices before applying. Kakeru Koumuten can assist with confirming the systems and 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 when used in combination.
This program is a successor to the “Child-Rearing Green Housing Support Project.” In principle, it requires renovation work that includes insulation improvements for openings (windows) and structural elements, and is applicable to eco-friendly housing equipment, child-rearing supportive renovations, disaster prevention enhancements, and barrier-free renovations.
Subsidy upper limit guidelines: For buildings constructed before 1991, up to 1,000,000 yen per unit (50,000 yen depending on the construction 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 will be accepted starting June 30, 2026. Reservations must be made by November 16 at the latest, and grant applications must be submitted by December 31 at the latest (subject to early closure if the budget limit is reached). Applications must be made through registered contractors.
This program covers window insulation renovations, including the installation of interior windows, replacement of exterior windows, and glass replacements. The subsidy amount is significant and effective for addressing cold, heat, and condensation issues. It can easily enhance the insulation performance of existing homes.
Subsidy amounts vary based on the window construction method, performance, size, and the type of housing. If the total subsidy amount for one application is less than 50,000 yen, it is not eligible. Applications have been accepted since March 31, 2026, and grant applications must be submitted by December 31 at the latest (subject to early closure if the budget limit is reached). Applications must be made through registered contractors.
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 applications will be accepted starting March 31, 2026 (subject to early closure if the budget limit is reached).
Yokohama City Program
This is a unique program by Yokohama City to support renovation work that improves existing homes to high insulation performance for the fiscal year 2026 (Reiwa 8). It targets child-rearing generations who are moving to existing homes and performing whole-house insulation renovations, as well as households that continue to live in their current homes while conducting whole or partial insulation renovations.
Reservation applications are from April 1, 2026, to November 30, and formal applications are from May 1 to November 30 (may end early if budget limits are reached). Only registered businesses under “Yokohama Health and Energy-Saving Housing” can apply; individuals cannot apply directly. There are requirements regarding housing, households, contracts, and businesses. For details, please check the official Yokohama City page.
This is the main system for reinforcing old wooden houses against earthquakes. It is particularly effective for those who are purchasing used detached houses and planning earthquake renovations.
Eligible: Wooden individual houses built using traditional frame construction methods with two stories or less, where construction began before the end of May 2000, and which have been determined to have an upper structure evaluation score of less than 1.0 based on earthquake diagnostics. The subsidy amount is the lowest of the “maximum amount per household category,” “calculated amount based on subsidy limit unit price,” and “cost of earthquake renovation work eligible for subsidy.” Procedures must be completed before the construction contract and commencement. For details, please check the official Yokohama City page.
This is for those who have been certified as requiring support or care. Eligible expenses include the installation of handrails, elimination of steps, changes to flooring materials, and replacement of doors and toilets. It can also be utilized when using a used house for two households.
Out of the maximum subsidy limit of 200,000 yen, those with a 10% burden will receive 90% (up to 180,000 yen). Depending on income, there may be cases where the burden is 20% or 30%. A prior application is required before the start of construction. For details, please contact your care manager or the ward office.
This system is for utilizing vacant houses as community contribution facilities (activity bases for child-rearing support, elderly support, community exchange, etc.). It targets community activity groups such as neighborhood associations, NPOs, and businesses.
With a subsidy rate of 1/2, for interior and exterior renovations of community contribution facilities, a maximum of 1,000,000 yen + seismic renovation up to 1,500,000 yen (total maximum of 2,500,000 yen). Requirements include being a single-family home in Yokohama that has been vacant for over a year at the time of application, not violating building codes, and not being certified as a specific vacant house, among others. For details, please check the official Yokohama city page.
View information on renovation tax reductions and other systems
- 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 conservation, barrier-free access, and long-term excellent housing, there may be cases where income tax deductions can be received even with personal funds.
- Reduction of Property Tax: There is a system that reduces property tax for a certain period for seismic renovations, energy-saving renovations, barrier-free renovations, etc.
- Kanagawa Prefecture Existing Housing Energy-saving Renovation Subsidy: For the fiscal year 2026, the subsidy rate is 1/3 with a cap of 150,000 yen. The first phase has ended, but additional applications are scheduled from September 7 to September 30, 2026, only via electronic application and on a first-come, first-served basis (approximately 25 cases). Applicants must apply themselves, and construction before the grant decision is not eligible. Please check the official Kanagawa Prefecture page.
While subsidies and tax reductions can sometimes be combined, there are restrictions on duplication for the same work. Kakeru Koumuten will organize and propose which systems can be used for your renovation after a site survey.
06Customer Feedback
カテゴリ ‘voice’ は見つかりません
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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
Aoba-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)!
Exterior Renovation Case Studies in Naka Ward
| Construction Location | Naka-ku, Yokohama |
|---|---|
| Work Details | Roof overlay work |
| Existing Roofing Material | Slate |
| New Materials Used | Super Galtect |
| Price Range | 600,000 yen – 700,000 yen |
| Completion Month | January 2024 |
Our Proposal
We proposed the roof overlay (cover method) where we do not remove the existing slate roof but instead overlay it with new waterproof paper and roofing material. We have adopted the lightweight metal roofing material Super Galtect for the new roof. This construction aims to enhance waterproofing and durability while utilizing the existing roof after confirming its condition and substrate.
07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Naka-ku
There are many renovation companies that serve Naka-ku, and it can be confusing to decide which one to choose. When requesting renovations, be sure to check the following five points.
- Having extensive experience in renovation work
- Confirming the presence of warranties and aftercare services
- Obtaining estimates from multiple contractors (at least 3 companies)
- Checking if the company conducts renovations in-house
- Verifying if they offer color simulations and perspective drawings
1. Having extensive experience in renovation work
Many renovation contractors publish their construction achievements on their websites. If a contractor provides detailed explanations of the process with photos, it makes it easier to envision the outcome after the request, providing peace of mind. If you have concerns, choose a contractor with ample experience.
Google and review sites are also helpful references. 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 considering construction achievements, estimates, and warranty details.
2. Confirming the presence of warranties and aftercare services
When choosing a contractor, be sure to check for 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 for exterior renovations and sealing work. We also conduct aftercare services and send out annual notification DM, making annual inspections possible.
Click here for more details on Kakeru Koumuten’s warranties and aftercare services
3. Obtaining estimates from multiple contractors (at least 3 companies)
When requesting renovations, be sure to obtain estimates from multiple contractors. Even for the same construction content, warranties, aftercare services, and prices can vary significantly. Having multiple estimates also makes price negotiations easier.
When comparing estimates, it’s important to look closely at not only the cost but also the “items in the estimate,” “confirmation of undercoating materials, sealing materials, and auxiliary paint,” and “confirmation of the process.” Lowering the rank of auxiliary parts or skipping processes can reduce costs, so it’s essential to not make judgments based solely on price.
Learn more about the points to compare in estimates
4. Confirm whether the company performs renovations in-house
Kakeru Koumuten Co., Ltd. conducts detailed hearings and investigations regarding the existing “condition,” “location,” “base materials,” “desired durability,” and “design,” and proposes 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 construction details and has clear responsibilities for quality control and guarantees. If the work is done in-house, it is easier to coordinate with the site, making it quicker to respond in case of any troubles.
5. Check if they offer color simulations and perspective drawings
Choosing colors and visualizing the image after construction can be challenging for both exterior and interior work. Having simulations can reduce the risk of mistakes like “it turned out differently than I imagined.” Since it is difficult to redo once the work is done, it is recommended to choose a company that can provide flexible simulations.
08Reasons why Kakeru Koumuten is chosen for renovations of used houses in Naka-ku
One reason is that “Kakeru Koumuten is also close to Naka-ku,” but
we have initiatives in “renovating vacant houses and used properties” that cannot be imitated by other companies,
which has received high praise from many customers.
We have absolute confidence in “cost,” “quality,” and “plans” for renovations in Naka-ku. Please compare with estimates from other companies.
The most important aspect of renovation is comparing estimates. Request estimates from at least 3 companies that operate in Naka-ku!
1. Equipment Specialized for In-House Renovations
Kakeru Koumuten Co., Ltd. has organized warehouses and material storage areas to provide high-quality renovations at low cost. We have 5 bases, including our Machida store in Tokyo, centered around Aoba-ku, Yokohama.
In-House Scaffolding Materials
We can construct temporary scaffolding, which is essential for exterior renovations, 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.
Storage of Materials in Our Large Warehouse
We store roofing materials and paints. By placing large orders at once, we can procure materials at lower prices, and since we always have stock available, we can respond quickly in emergencies. We also have various tools ready for different types of construction, including compressors and cleaning machines.
In-House Waste Separation
In exterior renovations, various waste materials such as paint, wood, and metal are generated. While many contractors dispose of them all together, our company significantly reduces waste disposal costs by sorting and recycling waste materials.
Exterior Renovation Showroom
In the 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 insulation properties using color simulation and heat insulation paint testing equipment. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama. It is easily accessible from within Yokohama city.
2. Complete In-House Construction
A major strength of Kakeru Koumuten is our complete in-house construction. By maintaining a consistent system from inquiry to project completion, we can keep costs down while delivering high-quality renovations. A single representative handles everything from the estimate to project completion, ensuring smooth communication without changes in sales or project management. All work, from temporary scaffolding setup to exterior wall painting and roof renovations, is carried out by our own skilled craftsmen. We are confident in our plans and costs, so we welcome competitive estimates.
3. Various Permits and Skilled Workers
We have obtained licenses for construction work and industrial waste collection and transportation. We also have nationally certified sheet metal workers and painting specialists on staff, ensuring confidence in our construction techniques. We are capable of handling large-scale painting projects for factories and apartment complexes.
4. Warranty and Aftercare
Exterior wall painting and joint sealing work come with a warranty. Aftercare is available annually, and we send out notification DM each year. If you have concerns about the warranty, please click the image above for more information.
5. Flexible and Prompt Response
We are equipped to handle various exterior troubles and situations. If you cannot access the roof at high places, we can use 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.
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 conduct technical improvement education to ensure that each staff member can handle various sites.
Click here for company information
7. Flexible Simulations for Both Exterior and Interior!
Kakeru Koumuten Co., Ltd. is dedicated to helping our customers choose colors and designs for both exterior and interior renovations, ensuring their important buildings are transformed to their satisfaction.
7-1. Exterior Renovation Simulation
We offer color simulations for exterior wall painting, as well as simulations for metal siding and roof overlays. We can create simulations based on actual photos of your building and propose several color patterns using our recommended color schemes. We also accommodate “test painting” and “paint board arrangements” to verify actual color tones.
7-2. Interior Renovation Simulation
We also provide simulations and perspective drawings for interior renovations. Based on your preferred style, such as modern, we will suggest suitable simulations. We create realistic perspectives from actual floor plans.
8. Solar Panel and Storage Battery Installation Work Available!
More customers are introducing solar power systems, which have generous subsidies, in conjunction with renovations of used properties. Kakeru Koumuten Co., Ltd. also handles solar power system installations and can propose solar panels tailored to the shape of your roof. We can also accept requests for estimates and power generation simulations only.
09Renovation of Used Properties and Vacant Houses in Naka-ku | Frequently Asked Questions
We answer the most common questions from those considering renovations of used properties and vacant houses in Naka-ku.
Is it better to renovate after buying a used property or consult before purchasing?
If possible, please consult us before making a purchase decision. Used properties often have deterioration that is not visible at first glance, and it is not uncommon to encounter unexpected construction costs after purchase. By having Kakeru Koumuten check the condition of the property you are considering in advance and providing an estimate for necessary renovations, you can establish a feasible financial plan.
What should be the priority for renovations in a used house in Naka-ku?
Depending on the condition of the building, we prioritize areas that, if left unattended, could lead to damage, such as leaks, termites, structural issues, and seismic concerns. After that, we will determine the order of work for exterior elements such as roofs and walls, water areas (kitchen, bathroom, toilet), and insulation based on your budget and the impact on your daily life. For older homes in areas like Yamate and Honmoku, we recommend starting with a comprehensive inspection of the entire building, including the condition of the roof and exterior walls.
What about renovations for used homes in scenic areas like Yamate in Naka-ku?
In areas like Yamate, Kannai, and the Shin-Yokocho district in Naka-ku, there are landscape regulations, so it is important to check the applicable rules for exterior wall colors and roofing materials for the property in question and consider color schemes that harmonize with the streetscape. Kakeru Koumuten can provide several patterns through color simulations. In locations close to the sea, such as Honmoku, considerations for sea breezes (salt damage) are also necessary. We will also provide information on Yokohama City’s seismic and insulation renovation subsidies.
How much does a full renovation (full renovation) 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” is a system where registered contractors (construction companies) apply. For seismic renovations or housing renovations under nursing care insurance in your municipality, the application is generally made by the individual, but we will guide you through the necessary documents and process. We will organize and provide information on “which programs are available,” so please feel free to consult with us first.
What risks are there if I leave a vacant house unattended?
Leaving a vacant house can lead to the progression of leaks and termite damage, depreciation of asset value due to deterioration of the exterior walls and roof, 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 property tax exemption for residential land may be revoked. Conducting an early inspection and performing necessary work according to your plans to live in, rent, sell, or utilize the property can ultimately help reduce costs.
I am concerned 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 detached houses built before that, we recommend a seismic diagnosis. There are also subsidies for seismic renovations for wooden houses in your municipality, which can significantly reduce costs if eligible (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?
The scope of work depends on the project. For exterior renovations and partial interior work, it is often possible to carry out the work while you remain in your home. However, 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 approximately 1 to 3 months or more for full renovations. We will provide you with a schedule in advance and propose a plan that minimizes the impact on your daily life.
Is Naka-ku within your service area? Will there be any travel fees?
Yes, Naka-ku is within the service area of Kakeru Koumuten. We have five locations, including our Machida store in Tokyo, centered around Aoba-ku, Yokohama, and we serve a wide range of areas in Kanagawa and Tokyo. Estimates are completely free, and we do not engage in persistent sales tactics. Please feel free to consult with us first.
Leave your renovations in Naka-ku to Kakeru Koumuten!
“I want my renovations to last a long time with just one project,” “I want to keep costs down as much as possible,” “I want to improve insulation because my home gets hot” — we will propose the best solutions for your specific requests. We will not suggest any unnecessary work that prioritizes profit.
We are confident in our costs, quality, and planning, which is why we welcome competitive estimates. Our estimates are completely free.
Get your free estimate and consultation here
If you find our company to be inferior to others, feel free to decline outright.
See Kakeru Koumuten’s project examples
View our service menu and price list
10Features of Naka-ku
Naka-ku, Yokohama, is a district rich in history and culture as a port town since its opening, featuring areas such as Kannai, Yamashitacho, Motomachi, Yamate, and Honmoku. It has a diverse character, from the Western-style houses in Yamate and residential areas on high ground to the urban functions around Kannai and Yamashitacho, and the coastal area of Honmoku.
In areas like Yamate and Honmoku, there are older houses, providing options for renovating used homes while considering the landscape. Kakeru Koumuten serves Naka-ku from five locations, including our Machida store in Tokyo, centered around Aoba-ku, Yokohama. We can perform in-house construction even for wall covering methods.
Areas We Can Renovate
Kakeru Koumuten accepts requests from a wide range of areas in Kanagawa and Tokyo. The availability of services may vary depending on the type of work and region, so please contact us for details.
Service Areas in Naka-ku, Yokohama (Main Areas)
Nihon Odori / Yamashitacho / Motomachi / Yamatecho / Honmokucho / Honmokuhara / Honmokuwada / Shin-Yamashita / Shin-Minato / Onoue-cho / Isezaki-cho / Choja-cho / Hagoromo-cho / Fukutomi-cho Nakadori / Fukutomi-cho Nishidori / Fukutomi-cho Higashidori / Kotobuki-cho / Negishi-cho / Minosawa / Ohira-cho / Chiyozaki-cho / Ikebukuro / Kashiba / Tateno / Yamato-cho / Hongoko-cho / Suwa-cho / Mugida-cho / Myokoji-dai / Uchikoshi and other areas throughout Naka-ku
・Check out Kakeru Koumuten’s renovation case studies here!
・Kakeru Koumuten Co., Ltd.’s construction menu and price list
・About exterior renovations in Naka-ku, Yokohama
・About roof renovations in Naka-ku, Yokohama
・About exterior wall painting in Naka-ku, Yokohama
・About waterproofing work in Naka-ku, Yokohama
・About leak repairs in Naka-ku, Yokohama
・Reasons why Kakeru Koumuten is chosen!
・About Kakeru Koumuten’s warranty and aftercare
・Company profile of Kakeru Koumuten Co., Ltd.
・Staff blog and announcements of Kakeru Koumuten Co., Ltd.
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株式会社翔工務店へ
株式会社翔工務店は平均年齢２０代後半の若い会社ですが、技術はどこにも負けていません。
いちばんの強みは、足場工事、屋根工事、塗装工事とすべて自社で行えること。一般には分業されるこの業界にあって、一式で頼めるので管理に手間がかからず、コストも抑えることが出来ます。何より、トラブルがあればすぐにかけつけます！
自信をもって、宣言できます。私たちは、神奈川で一番若くて親切なリフォーム屋です！
