[Takatsu-ku, Kawasaki] Renovation of Vacant Houses and Used Properties | Costs, Subsidies, and Case Studies

For those considering renovation of used properties and vacant houses in Takatsu-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 many achievements close to Takatsu-ku, will clearly explain the points for a successful renovation.

Obtain at least 3 estimates!

01Reasons for the Increase in Renovations of Used Properties and Vacant Houses in Takatsu-ku

Takatsu-ku, Kawasaki City is a highly convenient area centered around Mizonokuchi and Futako, where the Tokyu Den-en-toshi Line and Nambu Line intersect. It features a mix of flat land along the Tama River and hilly residential areas like Kuji and Kajigaya, where commerce and housing coexist in a well-balanced manner.

Residential areas developed during the Showa era are now entering a generational transition period, with many homes reaching 40 to 50 years old. This is why the option of “buying a used house or condominium and renovating (renovation) it to suit one’s lifestyle” is expanding in Takatsu-ku.

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 used properties through renovations. Interest in purchasing used houses for renovation and revitalization is also on the rise. 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 water facilities, making them difficult to live in as they are. By renovating and updating the equipment and interior, 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 valued low 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 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 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 or Used Properties

Point 1 Choose a Reliable Construction Company

First and foremost, it is essential to select a contractor you can trust to handle the 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 check which parts have deteriorated 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 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 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, supporting part 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 deductions on certain costs even when using 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 or 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 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 one 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 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 Takatsu Ward

*The following information is as of September 3, 2026. The content, duration, and budget of the systems change each fiscal 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 necessary documents, but the applicant and application methods vary by 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 subsidies.

Kawasaki City Program

06Customer Feedback

Exterior Renovation Case Studies in Takatsu-ku

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. Rich experience in renovation work

Many renovation contractors publish their work results on their websites. If a contractor provides detailed explanations of the process with photos, it makes it easier to visualize the project after hiring, giving you peace of mind. If you’re feeling uncertain, choose a contractor with ample experience.

Google and review sites can also be helpful. It’s 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 don’t make your decision based solely on reviews; consider the work results, estimates, and warranty details comprehensively.

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 typically 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 reminder 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)

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

When comparing estimates, look closely at not just the costs but also the “items in the estimate,” “check the undercoat materials, sealing materials, and auxiliary paint,” and “confirm the process.” Lowering the rank of auxiliary parts or skipping steps can reduce costs, so it’s important 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 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 a partner company performs the construction, it is important to confirm whether the contracting company understands the construction details and has clearly defined 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 look after construction can be challenging for both exterior and interior projects. Having simulations 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 Takatsu-ku

One reason is that “Kakeru Koumuten is also close to Takatsu-ku,” 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 Co., Ltd. has organized warehouses and material storage to provide high-quality renovations at low costs. We have five bases located in Kanagawa Prefecture 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 have scaffolding materials for approximately 50 single-family homes.

Materials stored in our large in-house warehouse

We store roofing materials and paints. By placing bulk orders, 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 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 minimizing disposal costs.

Showroom dedicated to exterior renovations

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, and is 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 can keep costs down while providing high-quality renovations. 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. We carry out construction with our own craftsmen, from temporary scaffolding setup to exterior wall painting and roof renovations. 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 every year, 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. Even if you cannot access the roof at high altitudes, we can respond with a drone. We also use a thermal imaging camera for leak investigations. We respond according to our customers’ wishes and also accept emergency measures for sudden leaks only.

6. Human Resource Development

We create various models for skill enhancement and conduct practical training. Since exterior renovations differ in construction methods and materials based on existing materials and shapes, we conduct regular skill enhancement training so 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 color patterns based on our recommendations. We also accommodate “test painting” and “sample board arrangements” 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. 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 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 Takatsu-ku｜Frequently Asked Questions

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

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

10Features of Takatsu-ku

Takatsu-ku in Kawasaki City is a highly convenient area centered around Mizonokuchi and Futako, where the Tokyu Den-en-toshi Line and Nambu Line intersect. It features a mix of flatlands along the Tama River and hilly residential areas such as Kuji and Kajigaya, where commercial and residential spaces coexist in a well-balanced manner.

Residential areas developed during the Showa era are now undergoing generational transitions, and the choice of continuing to live in older homes through renovation is becoming established. Kakeru Koumuten has its headquarters in Aoba-ku, Yokohama, and we widely accept exterior and interior renovations in Takatsu-ku, Kawasaki City. We can handle exterior work such as roofs and walls with in-house construction.

Areas We Serve for Renovations

Kakeru Koumuten accepts requests throughout Kanagawa and Tokyo.

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