[Subsidy Info Included] Initial Costs and Financing for Converting a Vacant House into a Guesthouse (Simple Lodging)

Converting a vacant house in Osaka City—often a “negative asset” that’s difficult to sell or rent—into a highly profitable “asset” can be achieved through conversion into a “simple lodging” (kan-i shukusho) facility under the Hotel Business Act. Compared to standard rentals or minpaku operated under the new minpaku law (limited to 180 days per year), a simple lodging facility can operate 365 days a year and is easier to secure financing for, giving it extremely high potential as a business.

Let’s start with the conclusion of this article.

The typical initial cost to convert a vacant house into a simple lodging facility ranges from approximately 5 million to 10 million yen for a standard single-family home. While this may seem like a significant sum at first glance, by leveraging subsidies of up to 2 million yen offered by Osaka Prefecture and City, along with specialized accommodation-facility loans from the Japan Finance Corporation, you can minimize your out-of-pocket investment while achieving strong returns.

“What exactly costs what?” “How do I go about securing the funding?”

In this article, we’ll break down the specific cost components and explain the latest subsidy and financing options available as of 2026, from a professional’s point of view.

The 4 Major Categories of “Initial Costs” for Launching a Simple Lodging Facility

When converting a vacant house into a guest accommodation, the biggest costs often come from renovations in “unseen” areas. Unlike typical home renovations, you must meet legal standards designed to protect guest safety.

1. Fire Safety Equipment Installation (200,000–2,000,000+ yen)

The biggest hurdle to operating as a simple lodging facility is compliance with the Fire Service Act.

• Small-scale facilities: Installing automatic fire alarm systems and emergency exit lights designed for small facilities typically costs around 200,000–500,000 yen.
• Large-scale facilities or buildings with 3+ floors: Depending on total floor area and building structure, sprinkler system installation may be legally required, which can push costs up by a million yen or more. In Osaka City’s densely built-up areas in particular, fire safety equipment often becomes the deciding factor in your overall budget.

2. Renovation and Change-of-Use Costs (3,000,000–7,500,000 yen)

This covers the building confirmation procedures required to change the property’s designated use from “residential” to “accommodation facility,” as well as interior renovation costs.

• Change-of-use procedures: Fees for hiring an architect typically run 800,000–1,500,000 yen.
• Interior and plumbing/water areas: This includes re-papering walls, replacing flooring, and updating outdated kitchens and bathrooms to create the “special getaway” experience guests expect. In particular, the cleanliness of kitchens and bathrooms is a key investment point that directly impacts your nightly rate.

3. Furniture, Appliances, and Fixtures (FF&E) Costs (500,000–1,500,000 yen)

When renting out an entire house, you need to create an environment that comfortably accommodates multiple guests.

• Beds and bedding (enough for the maximum occupancy), sofas, a large dining table, a full set of appliances, and a multilingual guest information tablet, among other items.
• These days, installing smart locks and self-check-in terminals (100,000–300,000 yen) has become essential for reducing labor costs.

4. Licensing and Administrative Scrivener Fees (200,000–500,000 yen)

This covers the application fee for your hotel business operating license, drafting of floor plans, and fees paid to an administrative scrivener (gyoseishoshi). While it’s possible to handle this process yourself, the floor plan requirements are strict, so most owners choose to hire a professional.

The Latest Subsidies and Grants Available in Osaka

To ease the burden of your initial investment, be sure to take full advantage of the subsidy programs offered by Osaka Prefecture and Osaka City.

Osaka Prefecture Accommodation Facility Environmental Improvement Promotion Project (Up to 2,000,000 yen)

This subsidy aims to improve convenience for travelers visiting Osaka. Because simple lodging facilities fall under the “hotel/ryokan” category rather than the minpaku category (which is capped at 400,000 yen), they receive substantially more generous support—a major advantage.

• Eligible items: Barrier-free renovations, cashless payment systems, multilingual support, smart lock installation, and more.
• Subsidy rate: Up to one-half of eligible expenses.
• Key point: To meet the continued tourism demand expected even after the Osaka Expo, investment in infrastructure improvements is being actively encouraged.

Osaka City Vacant House Utilization and Renovation Subsidy Program (Up to 750,000 yen per unit)

This subsidy is granted for “residential regeneration” or “regional community development” projects that improve a vacant house’s performance (earthquake resistance, energy efficiency) or contribute to regional revitalization. It can be used when converting to a simple lodging facility is deemed to contribute to “creating vibrancy in the local community.”

The Winning Route to Financing via the Japan Finance Corporation

The single biggest reason simple lodging facilities have an advantage over minpaku operated under the new law is that banks and the Japan Finance Corporation are more likely to recognize them as legitimate “businesses,” making financing easier to secure.

Making Use of the Health and Sanitation Business Loan (General Loan)

The Japan Finance Corporation offers a “Health and Sanitation Business Loan” (Seikatsu Eisei Kashitsuke) specifically for operators of hotel businesses.

• Loan limit: Up to 400 million yen (covers hotel businesses, including simple lodging facilities).
• Advantage: While minpaku operated under the new law and special zone minpaku don’t qualify, a “simple lodging” facility with a proper hotel business license can access this low-interest, long-term financing.
• What matters in the screening process: The quality of your business plan is critical. Lenders place heavy emphasis on projected occupancy rates, demand in your area, and whether you have a solid cleaning and maintenance system in place.

Strategies for Cutting Costs While Maximizing Returns

Knowing where to invest and where to cut back in your initial spending is what separates a successful investment from a failed one.

• Where NOT to cut corners: Fire safety equipment (a legal requirement), the cleanliness of kitchens and bathrooms, and Wi-Fi speed. Skimp here, and your reviews will suffer badly, delaying your return on investment.
• Where you CAN cut back: Overly elaborate decorative furniture and a “staffed front desk” where the owner is physically present on-site. By leveraging IT tools to automate and reduce staffing needs, you can drastically eliminate the fixed cost of labor.

Conclusion: 365-Day Operation Enables Faster Recovery of Your Initial Investment

Converting to a simple lodging facility does require a higher initial investment than operating minpaku under the new law. However, when you factor in the unlimited annual operating days (365 days) and the ability to secure financing from the Japan Finance Corporation, it’s clear that this business model offers exceptional stability and profitability.

1. Consult with professionals to confirm fire safety and building regulations, and get an accurate cost estimate.
2. Apply for Osaka Prefecture and City subsidies to minimize your out-of-pocket costs.
3. Utilize the Japan Finance Corporation’s “Health and Sanitation Business Loan” to make a leveraged investment.

Follow these steps correctly, and your vacant house will be transformed into a powerful asset that generates stable, reliable cash flow for years to come.

From Financial Diagnosis to Subsidy Applications and Ongoing Management—Stay Buddy Is With You Every Step of the Way

“I want to know exactly how much it would cost to turn my vacant house into a simple lodging facility.”

“Applying for subsidies and loans on my own seems complicated, and I can’t quite bring myself to get started.”

“Once I’ve invested the initial capital, I want to be certain the property will run with high occupancy and strong profitability.”

Leave all of these concerns to us.

Stay Buddy Co., Ltd. is a team of accommodation business professionals specializing exclusively in Osaka City.

We are far more than just a property management agency.

• Precise initial cost and revenue simulations that take full account of your property’s unique potential
• Application support and cost-optimization proposals backed by deep knowledge of Osaka’s subsidy programs
• Guidance on obtaining hotel business/simple lodging licenses, plus advice on fire safety and building code compliance
• Hotel-standard cleaning and management quality combined with low-cost operations powered by the latest DX tools

We resolve owners’ concerns about “funding” and “operations” with solid data and proven results. Let us help transform your vacant house into a highly profitable property built for the future. Get started today with a free property diagnosis and personalized consultation—feel free to reach out anytime.