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

Higashimurayama City in Tokyo is a residential area blessed with nature, such as Tama Lake and Kitayama Park (Iris Festival), where the Seibu Line converges. It has excellent access to the city center and is a livable area where apartment complexes and detached houses harmonize.

Detached houses and apartment complexes developed during the Showa era are entering a generational transition period, reaching 40 to 50 years of age. This is why the option of “buying used detached houses or apartment units and renovating (renovating) them to fit one’s lifestyle” is expanding in Higashimurayama City.

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 in renovated or refurbished 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 less livable as they are. By renovating and upgrading 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 resale

More people are purchasing and renovating used properties with the intention of resale. Used houses 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 an 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 constructions, and depending on the purpose and conditions, they may also qualify for subsidies and tax incentives, 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. 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 in line with 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 confirm which parts are deteriorating and to what extent beforehand. Since the property has been lived in by someone else, many internal damages may not be apparent without investigation. Conduct a current condition survey before starting work to identify 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 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 a portion of the costs for earthquake retrofitting, energy-saving renovations, and barrier-free modifications. 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 renovations 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).

04Cost Estimates for Renovating Vacant Houses and Used Properties

The cost of renovating used properties and vacant houses varies significantly based on the extent of damage and the scope of work. First, please understand the approximate costs by area to use 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 Facilities

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 depending on area and method. Please confirm the exact costs through a free on-site survey and estimate.

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

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

*The following information is as of September 3, 2026. The content, 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 providing 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 programs targeting energy-saving renovations under the “Housing Energy Saving 2026 Campaign.” Construction related to insulation, windows, and water heaters may be eligible for combined use of these subsidies.

Tokyo Metropolitan Program

Higashimurayama City Programs

06Customer Feedback

Exterior Renovation Case Studies in Higashimurayama City

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

There are many remodeling companies that serve Higashimurayama 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 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 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 posts. Google reviews are particularly useful, but do not make a decision based solely on reviews; consider the construction achievements, estimates, and warranty details for a comprehensive assessment.

2. Check for 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, but typically ranges from 1 to 10 years (emergency repairs and partial repairs are often not covered). Some contractors also offer after-sales service 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-maintenance and send out annual DM notifications for annual inspections.
Click here for more details on Kakeru Koumuten’s warranties and after-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, after-sales service, and prices can vary significantly. Having multiple estimates makes it easier to negotiate prices.

When comparing estimates, it’s important to look at not just the costs but also the “items in the estimate,” “check the undercoat materials, sealing materials, and additional paint,” and “confirm the process” in detail. Lowering the rank of additional parts or skipping processes can reduce costs, so it’s essential to not judge solely based on price.
Click here for detailed points on comparing 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” 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 clearly manages quality and warranty responsibilities. 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 envisioning the final look for both exterior and interior projects can be challenging after construction. With simulations, you can reduce the risk of disappointment from “not matching the image.” Since it is difficult to redo once the work is done, it is advisable to select a company that can provide flexible simulations.

08Reasons Kakeru Koumuten is Chosen for Renovations of Used Houses in Higashimurayama City

One reason is that “Kakeru Koumuten also serves Higashimurayama City,” but
“Our unique approach to renovating vacant and used properties that cannot be imitated by other companies”
has received high praise from many customers.

1. Equipment Specialized for In-House Renovations

Kakeru Koumuten has organized warehouses and material storage to provide high-quality renovations at low costs. We have five 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, this leads to cost reductions in scaffolding work. We own scaffolding materials for approximately 50 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 a lower cost, and since we always have stock available, we can respond quickly in emergencies. We also have a variety of tools ready for different types of construction, including compressors and cleaning machines.

In-house waste separation

In exterior renovations, various types of waste such as paint, wood, and metal are generated. Our company properly separates and recycles waste, also 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 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, and is accessible from Tokyo as well.

2. In-house construction system for exterior work

A major strength of Kakeru Koumuten Co., Ltd. is our in-house construction system for exterior work. By managing everything from inquiries to project completion consistently, we maintain quality while keeping costs down. Since one representative handles everything from the estimate to the completion of the work, communication is smooth. We carry out temporary scaffolding, exterior wall painting, and roof renovations primarily with our own craftsmen, while we organize an appropriate system for interior and equipment work according to the content. We are confident in our plans and costs, so we welcome competitive estimates.

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

5. Flexible and Prompt Response

We are equipped to handle various exterior troubles and situations. If you cannot access the roof at height, 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 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 vary depending 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 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 recommended color schemes. We also accommodate “test painting” and “sample board arrangements” to confirm 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 can recommend suitable simulations. We create realistic perspectives from actual floor plans.

8. We also handle solar panel and storage battery installation work!

As more customers are introducing solar power systems with generous subsidies in conjunction with renovations of used properties, Kakeru Koumuten Co., Ltd. also supports solar equipment installation and proposes solar panels tailored to the shape of your roof. We can also accept requests for estimates and power generation simulations only.

空き家を放置すると、劣化や損傷が進行しやすく、最終的には大規模な修繕が必要になることがあります。また、不法侵入や火災、害虫の発生といったリスクも高まります。さらに、周囲の環境にも悪影響を及ぼす可能性があり、地域の治安や資産価値にも影響を与えることがあります。早めの対策をおすすめします。