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

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

Hiratsuka City is a central city in Kanagawa Prefecture facing Sagami Bay, known for its Tanabata Festival, with a flat and livable terrain where single-family homes and apartment complexes are well-balanced.

Single-family homes and apartment complexes developed during the Showa era are now entering a generational transition period, with many being 40 to 50 years old, and locations near the sea face challenges related to salt damage. This is why the option of “buying a used single-family home and renovating (or renovating) it to suit one’s lifestyle” is expanding in Hiratsuka 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 renovating 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 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 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 intention of selling them. Used houses are often 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 an Investment or Business

For purchases made for investment or business purposes, renovations are essential. By transforming properties 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 construction, and depending on the use and conditions, there may also be subsidies or tax incentives available, leading to an increase in people 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 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 according to your wishes, the structure of the house, 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 the property has been lived in by someone else, internal damage is often not apparent without investigation. Conduct a current condition survey before starting work 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. Additionally, 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 reduce construction costs, 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-resistant renovations, 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 construction costs even with personal funds. These can sometimes be used in combination, so it is crucial 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 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 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 specified construction range. 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.

Please check the construction menu and price list for more details!

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

* The following information is as of September 4, 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 necessary documents, but the applicants and application methods vary by system.

National Program: Housing Energy Saving 2026 Campaign

The government is implementing multiple subsidy programs targeting energy-saving renovations as part of the “Housing Energy Saving 2026 Campaign.” Construction for insulation, windows, and water heaters may be eligible for these subsidies.

Hiratsuka City Program

06Customer Feedback

Exterior Renovation Case Studies in Hiratsuka City

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

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

1. Having 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 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 are useful, but do not make a decision based solely on reviews; consider the construction achievements, estimates, and warranty details for a comprehensive judgment.

2. Confirming 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, but it 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 notification DM, making annual inspections possible.
Click here for more details on Kakeru Koumuten’s warranties and aftercare services

3. Obtaining 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 costs can vary significantly. Having multiple estimates makes price negotiations easier.

When comparing estimates, it’s important to look closely at not only the cost but also the “items in the estimate,” “confirmation of primer 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’s crucial to not make judgments based solely on price.
Learn more about the points to compare 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,” and proposes the optimal plan. While there is nothing inherently wrong with a system where partner companies perform the work, it is important to confirm whether the contracted company understands the construction details and has clear responsibilities for quality control and guarantees. If the work is done in-house, it becomes easier to coordinate with the site and respond quickly in case of any troubles.

5. Check if they offer 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 work is done, it is advisable to choose a company that can provide flexible simulations.

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

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

1. Equipment Specialized for In-House Renovations

Kakeru Koumuten Co., Ltd. has organized warehouses and material storage areas to provide high-quality renovations at low cost. We have 5 bases located within Yokohama City for material storage and showrooms.

In-House Scaffolding Materials

We can construct temporary scaffolding, which is essential 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 lower prices, and since we always have stock available, we can respond quickly in emergencies. We also have various tools that can handle different types of construction, such as 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 reduces waste disposal costs by sorting 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. You can also confirm heat insulation properties using color simulations and heat-resistant paint testing equipment. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama.

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. Since one representative handles everything from the estimate to project completion, there is no change in personnel for sales and construction management, allowing for smooth communication. From temporary scaffolding installation to exterior wall painting and roof renovations, all work is carried out by our own skilled craftsmen. We are confident in our plans and costs, so we welcome competitive estimates.

3. Various Permits Obtained & Skilled Workers on Staff

We have obtained licenses for construction work and industrial waste collection and transportation. We also have nationally certified sheet metal technicians and painting technicians, 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 wall painting and joint sealing work come with a warranty. Aftercare is available annually, and we send out notification DM every year. 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. 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 measures for sudden leaks from exterior walls.

6. Human Resource Development

To improve skills, we create various models and conduct practical training. Since exterior renovations differ in construction methods and materials based on existing materials and shapes, we regularly conduct technical improvement education to ensure each staff member can handle various sites.
Click here for company information

7. Flexible Simulations for Both Exterior and Interior!

Kakeru Koumuten Co., Ltd. is dedicated to helping our customers choose colors and designs for both exterior and interior renovations, ensuring satisfaction with their important buildings.

7-1. Exterior Renovation Simulation

We offer color simulations for exterior wall painting, as well as simulations for metal siding and roof overlay (cover method). We can create simulations based on actual photos of your building and propose several patterns with 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 provide simulations and perspective drawings for interior renovations. We suggest recommended simulations based on your preferred style, such as modern aesthetics. Realistic perspectives are created based on actual floor plans.

8. Solar Panel and Storage Battery Installation Work Available!

More customers are introducing solar equipment with generous subsidies as part of their renovations for used properties. Kakeru Koumuten Co., Ltd. also handles 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.

09Renovation of Used Properties and Vacant Houses in Hiratsuka City | Frequently Asked Questions

We answer the most frequently asked questions from those considering renovations for used properties and vacant houses in Hiratsuka City.

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

10Features of Hiratsuka City

Hiratsuka City faces Sagami Bay and is a central city in the Shonan area. Known for its Tanabata Festival, it is a livable town with a flat and easy-to-navigate terrain, where single-family homes and apartment complexes are well balanced.

As single-family homes and apartment complexes from the Showa era reach a generational transition, the demand for used properties plus renovations, including measures against salt damage, is increasing. Kakeru Koumuten, headquartered in Aoba-ku, Yokohama, widely accepts exterior and interior renovations primarily in Kanagawa and Tokyo. We can also handle roof overlay (cover method) with our own construction.

Areas Available for Renovation

Kakeru Koumuten accepts requests primarily in Kanagawa and Tokyo.

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