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

For those considering renovations of used properties and vacant houses in Ome 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 these concerns, Kakeru Koumuten Co., Ltd., which has numerous achievements in Ome City, will clearly explain the key points for a successful renovation.

Let’s obtain estimates from at least 3 companies!

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

Ome City, located in the mountainous area of Nishitama, Tokyo, features old townscapes along the Ome Kaido and residential areas in the mountain villages. Blessed with the clear streams of the upper Tama River and rich nature, it is gaining attention as a place for relocation and dual residence living.

Old wooden houses and vacant homes are at a point where they need to be reviewed for earthquake resistance and insulation. This is why, in Ome City, the option of “buying an old detached house or traditional house and renovating it to suit a lifestyle in nature” is expanding.

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 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 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 finish 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 tend to be evaluated at a low asset value as they are, but renovations can enhance both appearance and performance, increasing the property’s value.

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 plan, you can also expect improved profitability. Initial costs can be lower than new construction, and depending on the use and conditions, there may be cases where subsidies and 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 your renovation. 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 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 Deterioration of the Building

For used properties and vacant houses, it is crucial to confirm which parts have deteriorated and to what extent in advance. Since there have been other occupants, the internal damage is often not apparent without investigation. Be sure to understand any hidden deterioration through a current condition survey before starting the work.

Point 3 Review Earthquake Resistance and Insulation Performance

Particularly important in the renovation of used and vacant houses is the review of earthquake resistance and insulation. The earthquake resistance standards were significantly revised in 1981, and homes built before that may not meet current standards. Furthermore, in 2000, regulations regarding joints and foundations were strengthened, making older buildings more likely to lack earthquake resistance. Check the condition of the building before starting work and be sure to check 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, covering part of the costs for earthquake retrofitting, energy-saving construction, and barrier-free renovations. Tax deductions include the “housing loan tax deduction” when using a mortgage, and there are systems that allow for deductions on certain costs even with personal funds. These can sometimes be used in combination, so it’s 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 based on the extent of damage and the scope of work. First, please understand the approximate costs by area to serve as a guideline for your financial planning (the table below provides general estimates for single-family homes. The interior is based on a room of about 6 tatami mats, and the exterior is based on the indicated scope of work. Actual estimates will be provided after a site survey).

1. Roof and Exterior Walls

2. Interior (Interior Finishing)

3. Water-related 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 of rooftops and updates to plumbing and wiring for the entire house may exceed the above estimates based on area and method. Please confirm the exact costs through a free on-site survey and estimate.

For more details, please check our construction menu and price list!

05[Latest 2026] Subsidies and Grants Available in Ome City

*The following information is as of September 2, 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 necessary documents, but the application methods and applicants may vary by program.

National Program: Housing Energy Saving 2026 Campaign

The government is implementing several 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.

Tokyo Metropolitan Government Program

Ome City Programs

06Customer Feedback

Exterior Renovation Case Study in Ome City

07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Aoba-ku

There are many renovation companies that serve Aoba-ku, and it can be confusing to decide which one to choose. When requesting renovations, be sure to check the following 5 points.

1. Experience in Renovation Work

Many renovation contractors publish their project results on their websites. If the 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 ample 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 project results, 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 generally ranges from 1 to 10 years (emergency repairs and partial repairs are often not covered). Some contractors also offer after-sales services separate from 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 construction content, warranties, aftercare services, and prices can vary significantly. Having multiple estimates makes price negotiations easier.

When comparing estimates, it is important to look at not only the costs but also the “items in the estimate,” “verification 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 is essential to not judge solely based on price.
Learn more about the points to compare estimates

4. Confirm whether the company performs renovations in-house

At Kakeru Koumuten, we carefully listen to and investigate 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 construction, it is important to confirm whether the contracting company understands the construction details and has clear responsibilities for quality control and warranty. If the work is done in-house, it is easier to coordinate with the site, allowing for quicker responses 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. 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 flexibly accommodate simulations.

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

One reason is that Kakeru Koumuten Co., Ltd. serves the city of Ome, but
our unique approach to “renovating vacant houses and used properties” 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 established 5 bases centered around Aoba-ku, Yokohama for material storage and showrooms.

In-House Scaffolding Materials

We can construct the temporary scaffolding required for exterior renovations using our own scaffolding materials and in-house scaffolding team. By not outsourcing, this leads to cost reductions in 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 lower prices, 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 paint, wood, and metal are generated. While many contractors dispose of them all together, our company significantly cuts waste disposal costs by separating and recycling waste materials.

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. Color simulations and tests for heat-reflective paints can also be conducted. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama, and is accessible from Tokyo as well.

2. Complete in-house construction

A major strength of Kakeru Koumuten Co., Ltd. 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 the completion of the work, ensuring smooth communication without changes in sales or project management. All work, from temporary scaffolding installation to exterior 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 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 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 access to the roof is not possible due to height, we can respond using a drone. For leak investigations, we also utilize a thermal imaging camera. We respond according to our customers’ wishes and we also accept emergency measures for sudden leaks from exterior walls.

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 vary depending on the existing materials and shapes, we conduct regular technical training 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, both exterior and interior, to ensure their satisfaction.

7-1. Exterior Renovation Simulation

We can create color simulations for exterior wall painting, as well as simulations for metal siding and roof overlays. We can generate simulations from actual photos of your building and propose several color patterns based on our recommendations. We also accommodate “test painting” and “sample board arrangements” to check the actual color tones.

7-2. Interior Renovation Simulation

We also support simulations and perspective drawings for interior renovations. We propose recommended simulations based on your preferred image, such as a modern style. Realistic perspectives are created from actual floor plans.

8. Solar Panel and Storage Battery Installation Work Available!

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 system installations and proposes 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 Ome City | Frequently Asked Questions

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

See Kakeru Koumuten’s construction examples
Services & Prices

10Features of Ome City

Oume City, Tokyo is located in the mountainous area of Nishitama, featuring old townscapes along the Ome Kaido and a spread of rural villages and residential areas. Blessed with the clear streams of the upper Tama River and rich nature, it is also gaining attention as a place for relocation and dual-base living.

As old wooden houses and vacant homes reach a generational transition, there is a growing demand for seismic and thermal insulation reviews, as well as for used homes + renovations and the revitalization 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. We can perform all work in-house, including wall covering methods.

Renovation Service Areas

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

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