[Akiruno City, Tokyo] Vacant & Used Homes: Renovation Costs, Grants & Projects

For those considering renovation of used properties and vacant houses in Akiro City

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 Akiro City, will clearly explain the key points for a successful renovation.

Obtain estimates from at least 3 companies!

01Reasons for the Increase in Renovations of Used Properties and Vacant Houses in Akiro City

Akiruno City in Tokyo is a town in nature-rich Nishitama, home to the Akigawa Valley. With single-family homes and traditional houses scattered across the satoyama landscape, it is a popular area for those seeking a rural lifestyle close to the city.

Old wooden houses and traditional homes have reached a point where they require reassessment of earthquake resistance and insulation. This is why, in Akiro City, the option of “buying a used single-family home or traditional house and renovating it to suit a lifestyle in nature” is becoming more widespread.

02Reasons for Renovating Vacant Houses and Used Properties

In recent years, the Japanese housing market has expanded options not only for new builds but also for renovating used properties. There is growing interest in living in renovated or refurbished used homes. 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 homes often have issues with the roof, 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, by changing the layout and refreshing the interiors, you can finish a home that suits your family’s lifestyle while keeping costs lower than new construction.

Reason 2 To Increase Asset Value for Sale

There is an increasing number of people purchasing and renovating used properties with the intention of selling. Used homes are often valued low as they are, but renovations can enhance their appearance and performance, thereby 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 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 construction, and depending on the use and conditions, they may also qualify for subsidies or tax incentives, leading to an increase in 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 that you can trust to handle your renovation with peace of mind. For used properties, since there were previous occupants, the internal structure and condition are often not clear until you actually see them. Choose a contractor that can perform the work thoroughly according to your wishes, the structure of the house, and the surrounding environment, and 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 are deteriorating and to what extent beforehand. Since the property has been occupied 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

In the renovation of used and vacant houses, it is particularly important to review 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.

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, and a portion of the costs for earthquake retrofitting, energy-saving construction, and barrier-free renovations may be supported. Tax deductions include the “housing loan tax deduction” when using a mortgage, and there are systems that allow for a portion of costs to be deducted for certain self-funded projects. These can sometimes be used in combination, so it is essential to check in advance and 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 market prices by area as a guideline for your financial planning (the table below provides general estimates for single-family homes. The interior refers to 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

2. Interior (Interior Finishing)

3. Water Facilities

4. Equipment & Infrastructure

5. Waterproofing & Earthquake Resistance

6. Exterior Works

* 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 Akiruno City

* The following information is as of September 2, 2026. The content, duration, and budget of the systems 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 the systems and necessary documents, but the applicant and application method may vary depending on the 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 combined use.

Tokyo Metropolitan Program

Akiruno City Programs

06Customer Voices

Exterior Renovation Case Study in Akiruno City

07How to Choose a Remodeling Contractor for Used Properties and Vacant Houses in Akiruno City

There are many remodeling companies that serve Akiruno City, and it can be confusing to decide which one to choose. When requesting a remodel, be sure to check the following five points.

1. Experience in Remodeling Work

Many remodeling contractors publish their work achievements on their websites. If a contractor provides detailed explanations of the process with photos, it can help you visualize the outcome after the request, giving you peace of mind. If you have concerns, choose a contractor with extensive experience.

Google and review sites can also be 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 can be informative, but do not make your decision based solely on reviews; consider the work achievements, estimates, and warranty details for a comprehensive judgment.

2. Check for Warranties and After-Sales Maintenance

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 it is generally between 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 a warranty for all exterior renovations and sealing work. We also conduct aftercare maintenance and send out annual notification DM to ensure annual inspections are possible.
Click here for more details on Kakeru Koumuten’s warranty and aftercare maintenance

3. Obtain estimates from multiple contractors (at least 3 companies)

When requesting renovations, be sure to obtain estimates from multiple contractors. Even for the same work, warranties, aftercare services, and prices can vary significantly. Having multiple estimates makes price negotiations easier.

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 auxiliary paint,” and “confirm the process” in detail. Lowering the rank of auxiliary parts or skipping processes can reduce costs, so it’s essential to not judge solely based on price.
See detailed points for comparing estimates

4. Confirm whether the company performs renovations in-house

At Kakeru Koumuten Co., Ltd., we carefully listen to and investigate the existing “condition,” “location,” “base materials,” “desired durability,” and “design” to propose the best 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 work details and has clear responsibility for quality control and warranty. If the work is done in-house, it is easier to coordinate with the site, making it quicker to respond in case of any issues.

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. If simulations are available, they can reduce the risk of mistakes like “it turned out differently than I imagined.” Once the work is done, it is difficult to redo, so it is advisable to choose a company that can provide flexible simulations.

08Reasons why Kakeru Koumuten is chosen for renovations of used houses in Akiruno City

One reason is that Kakeru Koumuten Co., Ltd. serves Akiro City, but
our unique approach to vacant house and used property renovations that cannot be imitated by other companies
has received high praise from many customers.

1. Equipment Specialized for In-House Renovations

At Kakeru Koumuten, we have organized warehouses and material storage to provide high-quality renovations at low costs. We have 5 bases 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 detached 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 a lower cost, and since we always have stock available, we can respond quickly in emergencies. We are also equipped with various tools to handle different types of construction, including compressors and cleaning machines.

In-house Waste Separation

In exterior renovations, various waste materials such as paints, wood, and metals are generated. Our company is committed to appropriately separating waste materials and recycling those that can be repurposed, thereby working to reduce disposal costs.

Exterior Renovation Dedicated Showroom

In the showroom, you can not only have meetings but also check the actual paint colors and a wide range of catalogs. You can also confirm heat resistance using color simulations and heat-resistant paint testing equipment. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama, and is accessible from within Tokyo.

2. In-house Construction System for Exterior Renovations

A major strength of Kakeru Koumuten Co., Ltd. is our in-house construction system for exterior renovations. By managing everything from inquiries to project completion, we can keep intermediate costs down while ensuring quality is easy to manage. Since one representative handles everything from estimates to project completion, there is no change in personnel for sales and construction management, allowing for smooth communication. We handle everything in-house, from temporary scaffolding installation to exterior wall painting and roof renovations, and we establish an appropriate construction system based on the specifics of the project, including interior work and plumbing. We are confident in our plans and costs, so we welcome competitive estimates.

3. Various Permits and Skilled Workers

We have obtained permits 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 on the image above for more information.

5. Flexible and Prompt Response

We are equipped to handle various exterior troubles and situations. If we cannot access the roof at height, we can respond using a drone. We also use a thermal imaging camera for leak investigations. We respond according to our customers’ wishes and also accept emergency repairs for sudden leaks only.

6. Human Resource Development

We create various models to enhance skills and conduct practical training. Since the construction methods and materials used for exterior renovations differ based on the existing materials and shapes, we regularly implement technical improvement education to ensure that each staff member can respond to various sites.
Click here for company information

7. Flexible simulations for both exterior and interior renovations!

Kakeru Koumuten Co., Ltd. is dedicated to helping our customers choose colors and designs for their important building renovations, ensuring their satisfaction for both exterior and interior work.

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 from actual photos of your building and propose several color patterns based on our recommendations. We also accommodate “test painting” and “sample board arrangements” to confirm 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. We also handle solar panel and battery installation work!

As more customers introduce solar equipment with substantial subsidies for renovations of used properties, Kakeru Koumuten Co., Ltd. also handles solar equipment installation, proposing 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 Akiruno City | Frequently Asked Questions

Here are answers to common questions from people considering renovation of existing or vacant homes in Akiruno City.

View Kakeru Koumuten’s project examples
Services & Prices

10Features of Akiro City

Akiro City in Tokyo is a nature-rich town in Nishitama, home to the Akigawa Valley. With single-family homes and traditional houses scattered throughout the satoyama landscape, it is a popular area for those seeking a rural lifestyle close to the city.

In older wooden houses and traditional homes, renovations for seismic resistance and insulation are being considered based on the condition of the buildings, including used home renovations and the restoration of traditional houses. Kakeru Koumuten Co., Ltd. is headquartered in Aoba-ku, Yokohama, and offers a wide range of exterior and interior renovations throughout Kanagawa Prefecture and Tokyo. Exterior renovations such as roof work, exterior wall painting, and exterior wall overlay can be handled by our in-house construction team.

Renovation Service Areas

Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.

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