[Matsuda Town, Kanagawa Prefecture] Vacant & Used Homes: Renovation Costs, Grants & Projects
For those considering renovations of used properties and vacant houses in Matsuda Town
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 has numerous achievements in Matsuda Town, will clearly explain the key points for a successful renovation.
Be sure to obtain estimates from at least 3 companies!

01Reasons for the Increase in Renovation of Used Properties and Vacant Houses in Matsuda Town
Matsuda Town is a place blessed with the famous Kawazu cherry blossoms, the mountains of Yadoriki, and the clear streams of the Sakawa River. It has excellent access to both the city center and Odawara, with the Odakyu Line’s Shin-Matsuda Station and JR Matsuda Station located side by side.
The old wooden houses in the urban area around the station and in the mountainous Yadoriki area are at a time when they require seismic and thermal insulation upgrades. This is why the option of “buying a used detached house and renovating it to suit your lifestyle” is expanding in Matsuda Town.
Matsuda Mountain, Yadoriki Mountains, and Rivers
A town blessed with Matsuda Mountain’s Kawazu cherry blossoms, the Yadoriki mountains, and the clear streams of the Sakawa River. The demand for used properties plus renovations is increasing for relocation and dual residences.
Retaining Walls, Drainage, and Mountainous Locations
In the sloped areas of Matsuda Mountain and Yadoriki, it is necessary to check retaining walls, slopes, and drainage, as well as to consider moisture control, rain protection, scaffolding, and transportation methods.
Temperature Differences and Insulation
Surrounded by mountains and rivers, this area experiences significant temperature differences, making it effective for insulation renovations (such as windows and interior windows) to combat winter chill and condensation.
Focus on the wide-ranging seismic retrofitting subsidies
The seismic retrofitting subsidies in Matsuda Town apply to buildings constructed before 2000. A notable feature is that they are easy to use for older used detached houses built before the new seismic standards.
This article summarizes the reasons, points to consider, cost estimates, the latest subsidies for 2026, and how to choose contractors from the perspective of Kakeru Koumuten, aimed at those considering renovating used properties or vacant houses in Matsuda Town to avoid “making mistakes.”
The most important thing is “multiple estimates.”
To avoid mistakes in renovations, the most crucial step is multiple estimates. First, obtain estimates from at least three companies that operate in Matsuda Town. 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 utilizing renovated used properties. There is a growing interest in living by purchasing and renovating used houses. Here, we explain the typical reasons for renovating vacant houses and used properties.
Reason 1 To live comfortably in your own home
The most common reason for purchasing and renovating a used property is “to live comfortably.” Older houses often have issues with the roof, exterior walls, and plumbing, making them difficult to live in as they are. By renovating and updating the facilities and interior, you can create a comfortable living environment. Additionally, by changing the layout and refreshing the interior, you can finish a home that suits your family’s lifestyle at a lower cost than new construction.
Reason 2 To increase asset value for resale
More people are purchasing and renovating used properties with the intention of resale. Used houses are often valued low in their current state, but renovations can enhance their appearance and performance, increasing their value as properties.
Reason 3 To utilize as an investment or business
For purchases intended for investment or business, renovations are essential. By transforming them into stylish rentals or share houses, you can differentiate them 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 purpose and conditions, they may also qualify for subsidies and tax incentives, leading to an increase in the number of people 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 your 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 properly 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 Deterioration of the Building
For used properties and vacant houses, it is crucial to confirm 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. Conduct a current condition survey before starting work to understand any 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 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 Reductions
To keep construction costs down, it is important to check for subsidies and renovation tax reductions. 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 reductions include the “housing loan tax reduction” when using a housing loan, and there are systems where part of the costs can be deducted for certain works 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, 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 specified scope of work. Actual estimates will be provided after a site survey).
1. Roof and Exterior Walls
| Construction Details | Estimated Cost |
|---|---|
| Roof Repair and Painting | Approximately 200,000 to 800,000 yen |
| Roof Replacement / Roof Overlay (Cover Method) | Approximately 700,000 to 2,500,000 yen |
| Exterior Wall Painting | Approximately 600,000 to 1,500,000 yen |
| Exterior Wall Replacement / Cover Method | Approximately 1,500,000 to 3,000,000 yen |
2. Interior (Interior Finishing)
| Construction Details | 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-related Facilities
| Construction Details | 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 Details | 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 (Replacement of Multiple Windows, Installation of Inner Windows, etc.) | Approximately 200,000 to 1,000,000 yen |
5. Waterproofing and Earthquake Resistance
| Construction Details | 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 Details | 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 depending on the area and method. Please confirm the exact costs through a free on-site survey and estimate.
For more details, please check our construction menu and price list!

05[Latest 2026] Subsidies and Grants Available in Matsuda Town

One way to renovate used properties and vacant houses cost-effectively is to utilize subsidy and grant programs. As of 2026, we have summarized the main programs that residents of Matsuda Town may be able to use.
*The following information is as of September 7, 2026. The details, duration, and budget of programs change annually, and many will end once the budget limit is reached. Please check with our company or the respective offices for the latest information before applying. Kakeru Koumuten can assist with confirming programs and providing necessary documents, but the application process and requirements may differ by program.
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 succeeds the “Child-Rearing Green Housing Support Project.” In principle, it requires renovation work that includes insulation improvements 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 cap guidelines: For buildings constructed before Heisei 3 (1991), up to 1,000,000 yen per unit (50,000 yen depending on the work), and for buildings constructed from Heisei 4 (1992) to Heisei 28 (2016), up to 800,000 yen per unit (400,000 yen for the same). Eligible construction must start on or after November 28, 2025, with applications accepted starting June 30, 2026. Reservations must be made by November 16 at the latest, and subsidy applications must be submitted by December 31 at the latest (early termination if the budget cap is reached). Applications must be made through registered contractors.
This program covers window insulation renovations such as installing interior windows, replacing exterior windows, and glass replacements. The subsidy amount is substantial and effective for addressing cold, heat, and condensation issues. It can easily enhance the insulation performance of existing homes.
Subsidy amounts vary based on window construction methods, 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 have been accepted since March 31, 2026, and subsidy applications must be submitted by December 31 at the latest (early termination if the budget cap 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 a suitable program for older 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, with applications accepted starting March 31, 2026 (early termination if the budget cap is reached).
Matsuda Town Program
This program supports the earthquake resistance of wooden single-family homes. One of its features is the wide eligibility, covering buildings constructed before May 31, 2000 (Heisei 12), making it easy to use for older single-family homes built before the new earthquake resistance standards. There are no restrictions on contractors being limited to the town.
The target is wooden structures (excluding prefabricated and framed wall methods) that received building confirmation before May 31, Heisei 12, and have a diagnostic score of less than 1.0. Earthquake diagnosis 2/3; maximum 70,000 yen, renovation 1/2; maximum 500,000 yen. Application deadlines are the end of January for diagnosis and the end of November for renovation. The acceptance status for the 8th year of Reiwa needs to be confirmed. For more details, please visit the official page of Matsuda Town.
This is a town system for those looking to introduce solar power, storage batteries, high-efficiency water heaters, etc., in conjunction with the renovation of used properties. There are no restrictions on contractors being within the town.
Solar power 20,000 yen/kW; maximum 100,000 yen (for less than 10kW), storage batteries 50,000 yen, HEMS 10,000 yen, fuel cells 50,000 yen, eco-cute, etc. 50,000 yen, V2H introduction cost 1/2; maximum 50,000 yen. Insulated windows and ZEH are not eligible under the town’s specific criteria (utilizing national programs like “Advanced Window Renovation 2026”). First-come, first-served within the budget. The direction and details for the 8th year of Reiwa need to be confirmed. For more details, please visit the official page of Matsuda Town.
You can utilize the removal of dangerous block walls facing the road (1/2; maximum 200,000 yen) and home renovations under nursing care insurance. There are no restrictions on contractors for block wall construction being within the town.
Block walls must be attached to residential or mixed-use buildings within the town and face a public road, with a height of 1 meter or more. This can be combined with earthquake reinforcement and hedge installation subsidies. Home renovations under nursing care insurance have a payment limit of 200,000 yen (generally 90% coverage). The current status of Matsuda Town’s general barrier-free renovation subsidy cannot be confirmed (needs verification). For more details, please visit the official page of Matsuda Town.
This is a system to support the renovation of vacant houses. While construction can be done by our company outside the city, the maximum of 300,000 yen applies only to construction by member contractors of the Matsuda Town Commerce and Industry Promotion Association, and if constructed by our company (Aoba-ku, Yokohama), the maximum is expected to be 200,000 yen. We provide honest guidance.
Renovation cost 1/2, up to 200,000 yen (If performed by a member contractor of the Matsuda Town Chamber of Commerce, the limit is 300,000 yen). Requirements include being an unoccupied house with no residents for over 3 months, moving in within 3 months after renovation, and a commitment to reside for at least 10 years. The application status for the fiscal year 2026 needs to be confirmed. For details, please visit the official page of Matsuda Town.
* For seismic renovations, smart houses, and block wall removals in Matsuda Town, there are no restrictions on contractors being within the town, so our company (Aoba-ku, Yokohama) can also be utilized. The subsidy for vacant house renovation project costs can be applied for even with contractors from outside the city, but the limit is expected to be 200,000 yen (300,000 yen for member contractors of the Chamber of Commerce). Insulation and windows should primarily utilize the national “Housing Energy Efficiency 2026 Campaign” and Kanagawa Prefecture’s existing housing energy efficiency renovation subsidies.
See also about 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 based on the year-end balance.
- Renovation Promotion Tax System (Investment-type Tax Reduction): For construction such as seismic, 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 renovations, energy-saving renovations, and barrier-free renovations.
- Kanagawa Prefecture’s Existing Housing Energy Efficiency Renovation Subsidy: For the fiscal year 2026, the subsidy rate is 1/3, with a limit of 150,000 yen. The first phase has ended, but additional recruitment is planned from September 7 to September 30, 2026, by electronic application only, on a first-come, first-served basis (about 25 cases). Applicants must apply themselves, and construction before the grant decision is not eligible. Please check the official page of Kanagawa Prefecture.
While subsidies and tax reductions can sometimes be combined, there are restrictions on duplications for the same work. Kakeru Koumuten will organize and propose which systems can be used for your work after conducting a site survey.
06Customer Voices
Exterior Renovation Case Studies Around Matsuda Town

| Construction Location | Ashigarakami-gun, Kanagawa Prefecture |
|---|---|
| Work Details | Temporary Scaffolding Installation / Roof Overlay Work |
| Existing Roofing Material | Slate (Colonial) / Standing Seam Metal |
| New Materials Used | Roofing Material: Aijie Industries / Super Galtect |
| Price Range | 700,000 – 800,000 yen |
| Completion Month | January 2024 |
Our Proposal
After assessing the condition of the existing slate roof and standing seam metal roof, we proposed a roof overlay work that utilizes the existing roof by layering new waterproof paper and roofing material. For the new roofing material, we selected Aijie Industries’ Super Galtect, which is lightweight and excels in insulation and durability. We also tailored the metal parts to fit the roof shape, enhancing the overall waterproofing and durability of the roof.
▶ Roof Repair and Renovation in Ashigarakami-gun
▶ Leak Repair in Ashigarakami-gun
▶ Kakeru Koumuten’s Construction Menu and Price List
07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Matsuda Town
There are many renovation companies that serve Matsuda Town, and it can be confusing to decide which one to choose. When requesting renovations, be sure to check the following 5 points.
- Experience in renovation work
- Check for warranties and after-sales maintenance
- Obtain estimates from multiple contractors (at least 3 companies)
- Confirm whether they perform renovations in-house
- Check if they offer color simulations and perspective drawings
1. Experience in Renovation Work

Many renovation contractors publish their project achievements on their websites. If a contractor provides detailed explanations of the process with photos, it can help you visualize the outcome and provide peace of mind. If you’re feeling uncertain, choose a contractor with ample experience.
Google and review sites can also be helpful. It’s important to check the content of low ratings, the company’s responses, and the timing of the posts. Google reviews are particularly useful, but don’t make your decision based solely on reviews; consider the contractor’s track record, estimates, and warranty details for a comprehensive evaluation.
2. Check for Warranties and After-Sales Maintenance

When selecting a contractor, be sure to check for warranties. Repairs may be free within the warranty period. 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 after-sales services in addition to warranties, so be sure to check that as well.
Kakeru Koumuten Co., Ltd. provides warranties for exterior renovations and sealing work. We also conduct after-sales maintenance and send out annual reminder DM for annual inspections.
Click here for more details on Kakeru Koumuten’s warranties and after-sales maintenance
3. Obtain Estimates from Multiple Contractors (at least 3 companies)

When requesting a renovation, be sure to obtain estimates from multiple contractors. Even with the same scope of work, warranties, after-sales service, and prices can vary significantly. Having multiple estimates makes it easier to negotiate prices.
When comparing estimates, not only costs but also “items in the estimate,” “confirmation of undercoating materials, sealing materials, and auxiliary paint,” and “confirmation of the process” should be carefully compared. Lowering the rank of auxiliary parts or skipping processes can reduce costs, so it is important to not judge solely based on price.
Learn more about points to compare estimates
4. Confirm whether the company performs renovations in-house

At Kakeru Koumuten Co., Ltd., we conduct 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 contracted company understands the scope of work and has clear responsibilities for quality control and warranties. If the work is done in-house, it is easier to coordinate with the site, and in the event of any troubles, it becomes easier to respond quickly.
5. Check if they offer color simulations and perspective drawings

Whether for exterior or interior, deciding on the image and colors after construction can be challenging. With simulations, you 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 advisable to choose a company that can accommodate flexible simulations.
08Reasons why Kakeru Koumuten is chosen for renovations of used houses in Matsuda Town
One reason is that “Kakeru Koumuten also serves Matsuda Town,” but
we have initiatives in “renovations of vacant houses and used properties” that cannot be imitated by other companies,
which have received high praise from many customers.
We have absolute confidence in our “cost,” “quality,” and “plans” for renovations in Matsuda Town. Please compare our estimates with those from other companies.
The most important aspect of renovations is comparing estimates. Be sure to request estimates from at least 3 companies that operate in Matsuda Town!
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 costs. We have 5 bases located in Kanagawa and Tokyo, including Aoba-ku, Yokohama and Machida City, Tokyo.
In-House Scaffolding Materials


We can construct the temporary scaffolding necessary for exterior renovations using our own scaffolding materials and in-house scaffolding team. By not outsourcing, we can achieve cost reductions on scaffolding work. We own scaffolding materials for approximately 50 houses.
Storage of Materials in Our Large In-House 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 available for different types of construction, including compressors and cleaning machines.
In-House Waste Separation

In exterior remodeling, various waste materials such as paint, wood, and metal are generated. Our company strives to reduce environmental impact and disposal costs by properly sorting waste materials and recycling those that can be reused.
Exterior Remodeling Dedicated Showroom


In the showroom, you can not only have meetings but also check actual paint colors and a wide range of catalogs. Color simulations and tests for heat-insulating paint can also be conducted. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama.
2. In-house Construction Focused on Exterior Work

A major strength of Kakeru Koumuten is our in-house construction focused on exterior work. By maintaining a consistent system from inquiry to project completion, we can provide high-quality remodeling at reduced costs. A single representative will handle everything from the estimate to project completion, ensuring smooth communication without changes in sales or project management. From temporary scaffolding installation to exterior wall painting and roof remodeling, our skilled craftsmen carry out the work. We are confident in our plans and costs, so we welcome competitive estimates.
3. Various Permits and Skilled Workers on Staff


We have obtained licenses for the construction industry and for the collection and transportation of industrial waste. 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. Even if you cannot access the roof at high places, 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 urgent temporary repairs for sudden leaks.
6. Human Resource Development

To enhance skills, we create various models and conduct practical training. Since exterior renovations differ in construction methods and materials based on existing materials and shapes, we conduct regular skill enhancement training so that each staff member can respond to 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 satisfaction with their important buildings.
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 requests for “test painting” and “paint board arrangements” to check the 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 can suggest recommended simulations. We create realistic perspectives based on actual floor plans.
8. Solar Power 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.
09Existing and Vacant Home Renovation in Matsuda Town | Frequently Asked Questions
Here are answers to common questions from people considering renovation of existing or vacant homes in Matsuda Town.
Should I arrange renovations after buying an existing home, or consult you before buying?
If possible, please consult us before deciding to buy. Existing homes may have deterioration that is not visible, and unexpected construction costs after purchase are not uncommon. By checking the condition of the property you are considering and estimating the necessary renovations in advance, Kakeru Koumuten can help you make a realistic financial plan.
Which renovations should take priority in an existing detached house in Matsuda Town?
Priorities depend on the building’s condition. We first address problems that can worsen if left untreated, including leaks, termites, structural issues and earthquake resistance. We then determine the order of work on the roof, exterior walls and other exterior elements, the kitchen, bathroom and toilet, and thermal insulation, according to your budget and the impact on daily life. In residential areas surrounded by Mount Matsuda and the Sakawa River, roofs and exterior walls may reach the end of their service life first, so we recommend inspecting the entire building, including the exterior.
I bought an existing detached house in Matsuda Town. Are subsidies available?
Matsuda Town’s wooden-house seismic retrofit subsidy broadly covers buildings dating from on or before May 31, 2000 (Heisei 12), making it accessible for existing detached houses built in the early period of the newer seismic standards (1/2 of retrofit costs, up to 500,000 yen; contractors outside the town are also permitted). Smart House subsidies (solar power: 20,000 yen/kW; storage batteries: 50,000 yen) and block-wall removal subsidies are also available. Insulation improvements are effective because the surrounding mountains and rivers create large temperature differences. For vacant-house renovation subsidies, the expected maximum is 300,000 yen when work is done by a member of the Matsuda Town commerce association, and 200,000 yen when carried out by our company, based outside the town. We explain this distinction openly.
How much does a full renovation cost?
The cost of fully renovating a detached house varies greatly with the scope and specification. Work focused on partial renovations starts at around 5 million yen, while extensive renovations covering the interior, exterior, kitchen and bathrooms, insulation and seismic upgrades may cost 10–20 million yen or more. We first inspect the property and propose a plan with priorities that fit your budget.
Do I apply for subsidies myself? Is the procedure difficult?
The applicant varies by program. For example, under the national Mirai Eco Housing 2026 program, registered contractors (construction companies) submit the application. Municipal seismic retrofit subsidies and home modifications covered by long-term care insurance generally require the individual to apply, but we explain the necessary documents and steps. We can also help you identify which programs may be available, so please contact us.
What risks arise if a vacant house is left unattended?
Water leaks and termite damage may worsen, deteriorating roofs and exterior walls can reduce property value, and garden trees and equipment may fall into neglect. If the municipality issues a recommendation concerning a poorly managed vacant house or a designated vacant house, the residential land exemption for fixed asset tax may cease to apply. Inspecting the property early and carrying out the necessary work according to your plans to live in, rent, sell or otherwise use it can help reduce costs in the long run.
I am concerned about earthquake resistance. How should I assess an existing detached house?
The construction date is an important guide. Check whether the house was built in or after June 1981 (the newer seismic standards), and in or after June 2000 (stricter rules for connections and foundations). We recommend a seismic assessment for wooden detached houses built earlier. Your municipality also offers subsidies for seismic retrofitting of wooden houses, which can substantially reduce costs if you qualify (see the subsidy section above). Kakeru Koumuten can advise you from assessment through renovation.
Will I need temporary accommodation during construction? How long will the work take?
It depends on the scope of work. Exterior renovations and partial interior work can often be carried out while you continue living in the home, but we may recommend temporary accommodation for extensive full renovations involving the kitchen and bathrooms. Typical durations are about 2–4 weeks for exterior work and about 1–3 months or more for full renovations. We provide a schedule in advance and propose a plan that minimizes disruption to daily life.
Is Matsuda Town within your service area? Are there travel charges?
Yes, Matsuda Town is within Kakeru Koumuten’s service area. Our headquarters is in Aoba Ward, Yokohama, and we have 5 bases in Kanagawa and Tokyo, serving both prefectures in their entirety. Estimates are completely free, and we do not use persistent sales tactics. Please feel free to contact us.
Leave your renovations in Matsuda Town 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 home gets hot”—we will propose the best solutions for your specific requests. We do not suggest unnecessary work that prioritizes profit.
We are confident in our costs, quality, and planning, so we welcome comparison estimates. Estimates are completely free.
Click here for a free estimate and consultation
If you find our company to be inferior to others, feel free to decline outright.
View Kakeru Koumuten’s construction examples
Services & Prices
10Features of Matsuda Town
Matsuda Town is blessed with the famous Kawazu cherry blossoms at Matsudayama, the mountains of Yadoriki, and the clear waters of the Sakawa River. The Odakyu Line’s Shin-Matsuda Station and JR Matsuda Station are conveniently located, providing good access to both the city center and Odawara.
As old wooden houses in urban and mountainous areas reach a generational transition, the choice of buying used properties and renovating them is becoming established. Kakeru Koumuten is headquartered in Aoba-ku, Yokohama, and we widely accept exterior and interior renovations throughout Kanagawa Prefecture. We can perform in-house construction primarily focused on roofing and exterior wall work.
Areas We Can Serve for Renovations
Kakeru Koumuten accepts requests throughout Kanagawa and Tokyo Prefectures.
Service Area in Matsuda Town (Main Regions)
Matsuda Soryo / Matsuda Shoko / Kamiyama / Yadoriki / Nobuzawa / Yamabukiyori and other areas throughout Matsuda Town (including Shin-Matsuda, Matsudayama, and Yadoriki districts)
We also welcome consultations via LINE◎
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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!





