Hotels & ryokan
Can You Turn a House in Tokyo into a Ryokan or Guesthouse? 5 Checks Before You Buy
What it takes to convert a detached house or small building in Tokyo's 23 wards into licensed lodging: zoning, the Building Standards Act, fire safety, floor-area rules and ward bylaws.
Whether a house can become a licensed lodging starts with zoning: hotels and ryokan are not allowed in low-rise or mid/high-rise exclusive residential zones. If the zoning passes, check the Building Standards Act (escape routes and stair enclosures), fire equipment, floor-area rules for simple lodgings, and ward bylaws, in that order. Below 200 m² no building confirmation application is needed, but the building must still comply.
Key takeaways
- Zoning is the first gate; hotels and ryokan are not allowed in exclusive residential or industrial zones
- Change of use of 200 m² or less needs no confirmation application (since 25 June 2019), but compliance is still required
- Buildings under 200 m² and up to three storeys can avoid fire-resistive construction if alarms and other measures are added
- One- and two-storey houses can usually use a simplified automatic fire alarm system
- Ward bylaws add conditions such as a front desk or distance from schools
1. Zoning: is lodging allowed here?
Short answer: if the zone does not allow hotels or ryokan, no licence will be issued however good the building is. Check the zoning (yoto chiiki) line in the listing first.
| Zone | Hotel / ryokan |
|---|---|
| Category 1 and 2 low-rise exclusive residential; rural residential | Not allowed |
| Category 1 and 2 mid/high-rise exclusive residential | Not allowed |
| Category 1 residential | Allowed up to 3,000 m² |
| Category 2 residential; quasi-residential | Allowed |
| Neighbourhood commercial; commercial; quasi-industrial | Allowed |
| Industrial; exclusive industrial | Not allowed |
2. Building rules: 200 m² and three storeys
Short answer: if the area changing use is 200 m² or less, no building confirmation application is required. The building still has to meet the Building Standards Act and the Fire Service Act.
The 200 m² threshold (up from 100 m²) came with the amended Building Standards Act, fully in force from 25 June 2019.
The same amendment lets buildings under 200 m² with up to three storeys avoid fire-resistive construction if required measures are taken; for sleeping uses such as lodging, that means installing a fire alarm system.
In three-storey houses the enclosure of the stairwell is a frequent problem, with detailed door requirements. How this applies to a given ryokan plan differs case by case, so an architect's review is essential.
3. Fire safety: equipment depends on storeys
Short answer: a one- or two-storey house can usually use a simplified automatic fire alarm (tokutei shokibo shisetsu-yo). Buildings with three or more storeys or a basement generally need a standard system.
The application includes a fire-code compliance notice (shobo horei tekigo tsuchisho) issued by the fire station after it inspects the building.
- One or two storeys: mainly a simplified automatic fire alarm
- Three storeys or basement: standard automatic fire alarm as a rule
- Buildings with a single indoor staircase face stricter detector rules
- Exit signs at exits, corridors and stairs (some may be waived where visibility is good)
- Flame-retardant curtains and carpets
- Extinguisher in the kitchen; throughout the building at 150 m² or more
4. Floor area and facilities for a simple lodging
Short answer: a simple lodging normally needs 33 m² of guest-room floor area, but if guests are capped below 10, 3.3 m² per guest is enough (in force April 2016). Even a small house can qualify with a lower guest cap.
Since the June 2018 amendment, a front desk can be replaced by equipment that handles ID checks, key handover and emergency response, but ward bylaws may still require a desk.
Worked example
Illustration: working out the guest cap
- Guest-room floor area: 20 m²
- 20 m² ÷ 3.3 m² ≈ 6.06 → up to 6 guests
- Below 33 m², but with 6 guests (under 10) the area rule is met
Check how rooms are counted and other facility rules with the ward health centre.
5. Ward bylaws: extra conditions
Short answer: conditions differ between wards. Read the handbook of the ward where the property sits before buying.
- Taito: a face-to-face front desk staffed during operating hours; may be refused within 110 m of a school
- Kita: no desk needed for owner-occupied lodgings (up to 5 rooms and 10 guests); unattended simple lodgings can skip the desk only if they also stay within 5 rooms and 10 guests and add substitutes such as CCTV kept 72+ hours and staff able to arrive in about 10 minutes
- Shinjuku: a proposed bylaw would set a 200 m²+ minimum floor area for ryokan use and require a staffed desk (not yet adopted as of October 2026)
Checklist before buying
- Zoning allows hotels/ryokan
- Area changing use: 200 m² or less, or more
- Number of storeys (three?) and indoor staircases
- Fire equipment needed and likely works
- Guest-room area and intended guest cap
- Ward bylaws: front desk, school distance, neighbour notice
- Completion certificate (kensa zumisho); Taito Ward asks for a copy after completion
Sources
- Tokyo Metropolitan Government: use restrictions by zone (Japanese)
- MLIT: amended Building Standards Act in force 25 June 2019 (Japanese)
- MLIT: 200 m² change-of-use rule explained (Japanese)
- Tokyo Fire Department: fire equipment Q&A for lodging (Japanese)
- MHLW: simple lodging floor-area rule (Japanese)
- MHLW: 2018 amendment of the Inns and Hotels Act (Japanese)
- Taito Ward ryokan handbook (Japanese)
- Kita Ward ryokan handbook (Japanese)
- MLIT technical notes: three-storey under-200 m² rule and stair enclosures (Japanese)
- MHLW notice on the 2018 decree amendments, incl. front desk (Japanese)
- FDMA notice on fire-code compliance notices (Japanese)
- Shinjuku Ward draft ryokan bylaw amendment (Japanese)
FAQ
Can a house that cannot be rebuilt (saikenchiku fuka) be licensed?
The two questions are separate, but properties with poor road access or escape routes tend to make building and fire talks harder. It needs a case-by-case check.
What if an old house has no completion certificate?
Some wards ask for a copy after completion. How a missing certificate is handled depends on the ward and the building, so check with the health centre and an architect before buying.
Is minpaku (private lodging) easier?
Minpaku only needs a notification and the house stays residential, but it is capped at 180 nights a year and wards add limits. To operate all year you need a lodging licence.
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