Renovation of Vacant Houses and Used Properties in Nakahara-ku, Kawasaki | Costs, Subsidies, and Case Studies

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For those considering renovation of used properties and vacant houses in Nakahara-ku

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 close to Nakahara-ku, 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 Nakahara-ku

Nakahara-ku in Kawasaki City is a highly convenient area known for the large-scale redevelopment of Musashi Kosugi (tower apartment complexes), served by the Nambu Line and Tokyu Toyoko Line. While redevelopment of former factory sites is progressing, residential areas such as Motosumiyoshi and Shinjo are also expanding.

Surrounding the redevelopment areas, there are many Showa-era detached and wooden houses, and the generational transition of aging houses is underway. This is why the option of “buying a used detached house or apartment and renovating (renovating) it to suit one’s lifestyle” is expanding in Nakahara-ku.

02Reasons for Renovating Vacant Houses and Used Properties

In recent years, the housing market in Japan 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 create 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 aim of selling them. Used homes are often valued low as they are, but renovations can enhance both appearance and performance, increasing the property’s value.

Reason 3 To Utilize as Investment or Business

When purchasing 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 planning, you can also expect improved profitability. Initial costs can be lower than new construction, and depending on the use and conditions, there may be subsidies and tax incentives available, 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 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 who can carry out the work thoroughly in line with 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 are deteriorating and to what extent beforehand. Since other people have lived there before, the internal damage is often not apparent without investigation. Make sure to understand any hidden deterioration through a current condition survey before starting work.

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 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, and part of the costs for earthquake retrofitting, energy-saving construction, and barrier-free renovations can be supported. Tax reductions include the “housing loan tax reduction” when using a housing loan, and there are systems that allow for deductions on part of the 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 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 rates 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 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 the 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 Nakahara Ward

*The following information is as of September 3, 2026. The details, duration, and budget of the systems change each fiscal year, 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 providing necessary documents, but the applicant and application methods differ 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 these combined subsidies.

Kawasaki City Program

06Customer Voices

Exterior Renovation Case Studies in Nakahara-ku

07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Nakahara Ward

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

1. Abundant 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, giving you peace of mind. If you have concerns, choose a contractor with abundant 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. In particular, Google reviews are useful, but do not make your decision based solely on reviews; evaluate them comprehensively along with construction achievements, estimates, and warranty details.

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 used, but typically ranges from 1 to 10 years (emergency repairs and partial repairs are often not covered). Some contractors also offer aftercare services separate from warranties, so be sure to check for those 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, making annual inspections possible.
Click here for more details on Kakeru Koumuten’s warranties and aftercare services

3. Obtain Estimates from Multiple Contractors (at least 3)

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 it easier to negotiate prices.

When comparing estimates, look closely not only at costs but also at the “items in the estimate,” “confirmation of undercoating materials, sealing materials, and auxiliary paint,” and “confirmation of the process.” Lowering the rank of auxiliary parts or skipping steps can reduce costs, so it is important to not judge solely based on price.
See detailed points for comparing estimates

4. Confirm Whether the Company Handles 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 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 defines the responsibilities for quality control and guarantees. With in-house construction, it is easier to coordinate with the site, allowing for quick responses in the event of any troubles.

5. Do they support color simulations and perspective drawings?

Choosing colors and envisioning the appearance after construction 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 construction 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 Nakahara-ku

One reason is that “Kakeru Koumuten is also close to Nakahara-ku,” 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 Co., Ltd., we have organized warehouses and material storage areas 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

For exterior renovations, we can construct temporary scaffolding using our own scaffolding materials and in-house scaffolding team. By not outsourcing, this leads to cost savings on scaffolding work. We own scaffolding materials for approximately 50 detached houses.

Materials stored in our large in-house warehouse

We store roofing materials and paints. By placing bulk orders at once, we can purchase materials at lower prices, and since we always have stock available, we can respond quickly in emergencies. We also have various tools ready 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. Our company is committed to separating and recycling waste materials, working towards reducing waste and controlling disposal costs.

Showroom dedicated to exterior renovations

In the showroom, you can not only have meetings but also check the actual paint colors and a wide variety of catalogs. You can also verify 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 easily accessible from Kawasaki City.

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 aim to provide high-quality renovations at a lower cost. Since one representative handles everything from the estimate to project completion, there is no change in the person responsible for sales and construction management, allowing for smooth communication. From temporary scaffolding installation to exterior wall painting and roof renovations, we primarily use our own skilled craftsmen for 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 construction industry licenses as well as permits for industrial waste collection and transportation. We also have nationally certified sheet metal workers and painting technicians 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 Maintenance

Exterior painting and joint sealing work come with a warranty. Aftercare is available every year, and we send out notification DMs annually. 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. 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 for skill enhancement and conduct practical training. Since exterior renovations vary in construction methods and materials based on existing materials and shapes, we regularly implement technical training to ensure each staff member can handle 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 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 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 propose recommended simulations. We create realistic perspectives from actual floor plans.

8. Solar Panel and Storage Battery Installation Work Also 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 will propose solar panels tailored to the shape of your roof. We can also accept requests for estimates and power generation simulations only.

09Renovation of Used Properties and Vacant Houses in Nakahara-ku | Frequently Asked Questions

We answer the most frequently asked questions from those considering renovations of used properties and vacant houses in Nakahara-ku.

View Kakeru Koumuten’s construction examples
View construction menu and price list

10Features of Nakahara-ku

Nakahara-ku in Kawasaki City is known for the large-scale redevelopment of Musashi Kosugi (tower apartment complexes) and is a highly convenient area served by the Nambu Line and Tokyu Toyoko Line. While redevelopment of former factory sites is progressing, residential areas in places like Motosumiyoshi and Shinjo are also expanding.

Single-family homes and wooden houses from the Showa era in the redevelopment area are reaching a generational transition, and the choice to continue living through purchasing used properties and renovating them is becoming established. Kakeru Koumuten has its headquarters in Aoba-ku, Yokohama, and offers a wide range of exterior and interior renovations throughout Kawasaki City. We can handle exterior work, including roof and wall overlay methods, with in-house construction.

Areas Available for Renovation

Kakeru Koumuten accepts requests throughout Kanagawa and Tokyo.

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