[Akishima City, Tokyo] Renovation of Vacant Houses and Used Properties | Costs, Subsidies, and Case Studies

For those considering renovations of used properties and vacant houses in Akishima 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 Akishima City, 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 Akishima City

Akishima City, located adjacent to Tachikawa City, is a town in the Tama area where single-family residential areas expand around Haijima Station and Akishima Station. It is known for its high-quality groundwater that supplies all water needs, making it an attractive living environment blessed with greenery and water.

Single-family homes developed during the Showa era are now entering a period of generational change, reaching 40 to 50 years old. This is why the option of “buying a used single-family home and renovating (or remodeling) it to fit one’s lifestyle” is expanding in Akishima City.

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 utilizing renovated used properties. Interest in purchasing used homes for renovation and revitalization is also increasing. 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 difficult to live in 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 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 homes are often evaluated as having low asset value in their current state, but renovations can enhance their appearance and performance, thereby increasing their value as properties.

Reason 3 To Utilize as Investment or Business

For purchases aimed at investment or business, 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 construction, and depending on the purpose and conditions, there may also be subsidies or tax incentives available, leading to an increase in those utilizing vacant houses for business.

03Points to Note 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 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 occupied by someone else, internal damage is often not apparent without investigation. Conduct a current condition survey before starting construction to identify 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 construction and be sure to check 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, and part of the costs for earthquake retrofitting, energy-saving construction, and barrier-free renovations may be supported. Tax deductions include “housing loan tax deductions” when using a housing loan, and there are systems that allow for partial deductions of costs 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 as a key to 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 familiarize yourself with the approximate costs by area to serve as a guideline for your financial planning (the table below provides general estimates for typical 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

2. Interior (Interior Finishing)

3. Water Supply Equipment

4. Equipment and Infrastructure

5. Waterproofing and 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 the area and method used. 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 Akishima City

* The following information is as of August 28, 2026. The content, duration, and budget of the systems change each year, 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 providing necessary documents, but the application methods and applicants may vary by system.

National Program: Housing Energy Efficiency 2026 Campaign

The government is implementing multiple subsidy programs targeting energy-efficient renovations under the “Housing Energy Efficiency 2026 Campaign.” Construction for insulation, windows, and water heaters may be eligible for combined use of these subsidies.

Tokyo Metropolitan Program

Akishima City Program

06Customer Voices

Exterior Renovation Case Studies in Akishima City

07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Akiyama City

There are many renovation companies that serve Akiyama City, and it can be confusing to decide which one to choose. When requesting renovations, be sure to check the following five points.

1. Have 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 visualize the outcome after the request, providing 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 are useful, but do not make your decision based solely on reviews; consider the construction results, estimates, and warranty details for a comprehensive judgment.

2. Confirm 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 generally 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, allowing for annual inspections.
Click here for more details on Kakeru Koumuten’s warranties and aftercare services

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 construction work, warranties, aftercare services, and costs can vary significantly. Having multiple estimates makes price negotiations easier.

When comparing estimates, it is important to look at not just the costs, but also the “items in the estimate,” “check the undercoat materials, sealing materials, and paint for auxiliary parts,” and “confirm the process” in detail. Lowering the rank of auxiliary parts or skipping steps can reduce costs, so it is essential to not make judgments based solely on price.
See detailed points for comparing 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,” “materials,” “desired durability,” and “design” to propose the most suitable plan. While there is no inherent problem with the system of subcontractors performing the work, it is essential to confirm whether the contracted company understands the scope of work and clearly defines the responsibilities for quality control and guarantees. When we handle the work ourselves, it facilitates better coordination with the site and allows for quicker responses in the event of any issues.

5. Do they offer color simulations and perspective drawings?

Choosing colors and visualizing the post-construction image can be challenging for both exterior and interior projects. 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 provide flexible simulations.

08Reasons why Kakeru Koumuten is chosen for remodeling used houses in Akishima City

One reason is that “Kakeru Koumuten also serves Akishima City,” but
we have initiatives in “vacant house and used property remodeling that cannot be imitated by other companies,”
which have received high praise from many customers.

1. Equipment specialized for in-house remodeling

Kakeru Koumuten has established warehouses and material storage areas to provide high-quality remodeling at low costs. We have five bases within Yokohama City for material storage and showrooms.

In-house ownership of 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 enough scaffolding materials for approximately 50 houses.

Materials stored 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 ready for different types of work, including compressors and cleaning machines.

In-house waste separation

In exterior renovations, various types of waste such as paint, wood, and metal are generated. While many contractors dispose of them all together, we separate and recycle waste, significantly reducing waste disposal costs.

Exterior renovation dedicated showroom

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. 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 providing high-quality renovations. A single representative will handle everything from the estimate to project completion, ensuring smooth communication without changes in sales or construction management. All work, from temporary scaffolding installation 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 permits for the construction industry and for the collection and transportation of industrial waste. We also have nationally certified sheet metal 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 as well.

4. Warranty and Aftercare

Exterior painting and joint sealing work come with a warranty. Aftercare is available every year, and we send out notification DM annually. If you have concerns about the warranty, please click on the image above to check.

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 emergency measures for sudden leaks from the exterior walls only.

6. Human Resource Development

We create various models for skill enhancement and conduct practical training. Since the construction methods and materials used for exterior renovations differ based on existing materials and shapes, we regularly implement technical skill 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!

Kakeru Koumuten is dedicated to helping you choose colors and designs for your important building renovations, both exterior and interior, to ensure your satisfaction.

7-1. Exterior Renovation Simulation

We can provide 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 suggest several patterns with our recommended color schemes. We also accommodate “test painting” and “arranging paint boards” to confirm the actual color tones.

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 storage battery installation work!

More customers are introducing solar power systems, which have substantial subsidies, in conjunction with renovations of used properties. Kakeru Koumuten Co., Ltd. also handles solar power installation work and will propose solar panels tailored to the shape of your roof. We can also accept requests for estimates and power generation simulations only.

09Used Property and Vacant House Renovation in Akishima City | Frequently Asked Questions

We will answer the most frequently asked questions from those considering renovations of used properties and vacant houses in Akishima City.

View Kakeru Koumuten’s case studies
View our service menu and price list

10Features of Akishima City

Akishima City in Tokyo is adjacent to Tachikawa City and features a residential area centered around Haijima Station and Akishima Station. It is known for its high-quality groundwater that supplies all water, making it an attractive living environment blessed with greenery and water.

Houses developed during the Showa era are now reaching a generational transition, and the choice of buying used homes and renovating them has become established. Kakeru Koumuten has its headquarters in Aoba-ku, Yokohama, and offers a wide range of exterior and interior renovations throughout Kanagawa and Tokyo Prefectures. We can perform all work in-house, including exterior wall overlay methods.

Areas We Serve for Renovations

Kakeru Koumuten accepts requests throughout Kanagawa and Tokyo Prefectures.

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