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部屋は空いている。
制度が、重い。

Could that spare room be put to use? Look into it and you soon reach minpaku — licensed home-sharing — and the deeper you read, the more people stop before they start. This article lays out exactly what is heavy about it. Not to argue against minpaku, but to confirm one thing: what you need depends entirely on whether what you want is a business or a connection.

民泊の入り口は、実は3つある

Minpaku is one word with three main legal entrances. The Private Lodging Business Act (the "minpaku law") uses a notification system, capped at 180 operating days per year. A simple-lodging permit under the Hotel Business Act has no day cap, but restricts where you can operate by zoning. Special-zone minpaku exists only in areas of national strategic zones whose municipalities have enacted ordinances, with minimum-stay conditions set by those ordinances. Which entrance you choose changes the procedures and equipment required. For the exact rules, see the Japan Tourism Agency's minpaku portal.

Japan Tourism Agency minpaku portal

ハードル① 届出は「書類一枚」で終わらない

Even the lightest route — notification under the minpaku law — does not end with submitting a form. Depending on the property and the area, it comes with fire-code compliance (automatic fire alarms and exit lighting may be required), property rights (a landlord's consent if renting; for a condominium, the building rules must be checked, and rules banning minpaku are not rare), municipal ordinances (some municipalities restrict operating areas and periods beyond the 180-day cap), and operating duties such as guest registers and posted signage.

What is required varies too much by situation to state in one line — and precisely because it does, many people stop at the stage of finding out what their own property would need.

ハードル② 営業できるのは年180日。手間は、毎回

The minpaku law caps operation at 180 days a year — meaning the ceiling on the number of nights you can host is fixed by structure before you begin. Meanwhile cleaning, key handoffs, guest support, booking management, and review responses recur with every single stay. If you do not live in the property, you must in principle contract a registered lodging-management company (with limited exceptions), which adds its own fees. Depending on conditions, up-front costs alone can reach several million yen. Our founder once looked into it in Shibuya and hit the same wall.

それでも、民泊が向いている人

These hurdles are natural, given that minpaku is a framework for a lodging business. For anyone who wants to run a spare room as a business, it is a proper, nationally established system — and every hurdle you clear becomes a barrier to entry working in your favor. It suits people who can make revenue the goal, systematize cleaning and key handoffs, and clear the property conditions of building rules and zoning. If that is you, it is well worth investigating.

目的が「交流」なら、装備は軽くていい

Here, pause and remember what you wanted in the first place. Did you want to start a room-rental business? Or did you simply think it would be good if a spare room had someone's presence in it again? If it is the latter, the equipment you need becomes far lighter. There is a way to open the room without charging for lodging: welcoming a young job seeker for up to two nights and three days.

With KIBOU, there is no initial registration or listing fee. Students can experience your household's quest in the game first — learning what time the house wakes and how meals work — before they come. A stay is designed to take place only when you approve it. Afterward, you write reviews of each other. As for host payment: when insight from a stay is shared with a company through KIBOU within the scope the student consented to, we plan to thank the host for that information — the amount and terms are currently being designed.

One honest note: even hosting without lodging fees still requires checking your lease, your building's rules, and local regulations. We do not claim that hosting for free removes every procedure. The details of how hosting works are in another article.

→ Don't turn that room into a business.

As for what happens once you start welcoming people — there is the record of one house in Ebisu that more than 1,000 people visited.

→ The more you welcome, the more a house becomes a community.

The room is empty. The rules are heavy because they are the rules of a business. If a business is what you want, the hurdles are worth clearing. If all you wanted was connection — that room can be opened far more lightly.