Why Tokyo monthly rentals start at 30 nights

Look at the minimum stay on almost any furnished Tokyo listing and you'll see 1 month. About 99% of midterm operators publish that as their floor. No operator offers a 14-night or 21-night option.

The reason is the law. Japanese law splits lodging into three license types, and they break at 30 nights.

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Below 30 nights, the building needs a hotel-class license. The most common form is 旅館業法 (ryokan-gyō-hō — the Inns and Hotels Act), which covers hotels, ryokan inns, and serviced apartments. The other form is 民泊 (minpaku — "private lodging," the 2018 home-sharing registry), which lets a residential building host stays of 1 to 180 nights per year. Each license has its own fire-safety standards, inspections, and reporting. Buildings that hold these licenses are sold by hotel operators on Booking.com, Agoda, and Airbnb. They're not where you'd search for a Tokyo monthly rental.

Above 30 nights, the building is residential. Different rules, different paperwork, different market. The operator (the company that runs the furnished rental) signs a residential lease with the building owner, then sublets short-term to tenants like you. No hotel license required. No 180-night cap. (Tokyo lodging licenses walks through the three tiers in detail.)

Most furnished midterm operators picked the residential path. So the 30-night minimum is universal among them, not because they prefer longer stays, but because their buildings can't legally take shorter ones.

A handful of operators set their minimum at 6 months instead. None offer 14 or 21 nights. There's no gradient. The legal floor is hard.

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In the residential midterm market, the discount you get depends on which operator you book with. Most operators publish four rates: 1 month, 3 months, 6 months, and 12 months. Some only publish three (capping at 6). A few publish four with 9 months instead of 12. And a small group don't publish any discount at all, charging the same monthly rate whether you stay 1 month or 11.

Walk a typical Tokyo studio through each setup. The 1-month rate is what the operator charges when they don't yet know if you'll renew or someone else will follow. The 12-month rate is what they charge when one cleaning and one onboarding covers the whole year.

A common four-rate setup runs ¥295,000 at 1 month and ¥272,000 at 3 months, a 7.7% per-month drop. The 6-month rate sits at ¥249,000, another 8.3% drop. The 12-month rate at ¥226,000, a final 9.1% drop. Across the year, the per-month rate falls 23%. The operator leaves about ¥816,000 of rent on the table to lock the unit in for 12 months upfront.

Operators that target corporate relocations price differently. Their 1-month rate sits at ¥405,000. The 3-month rate drops to ¥361,000, an 11.3% per-month drop, the steepest in the segment. The 6-month rate holds at ¥358,000. The 12-month rate ticks back up to ¥369,000, a 3.2% increase. The pattern: a sharp drop at 3 months, then a flat run. The 12-month rate on these isn't really a discount. It's the price for a long-stay commitment, not less.

A few operators run a big 6-to-12 discount instead. ¥289,000 at 1 month, ¥273,000 at 3 months, ¥261,000 at 6 months, and ¥199,000 at 12 months. The 12-month rate is 31% below the 1-month rate. That's the biggest gap in the market. But you only see it on about a third of their listings.

Operators that cap at 9 months might run ¥488,000 at 1 month down to ¥425,000 at 9 months. That's 13% off across the ladder. If you want to stay longer than 9 months, you'll have to ask them off-listing.

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If your stay is shorter than 30 nights, you're in the hotel or minpaku market. Different platforms, different pricing, different rules. If it's 30 or longer, you're in the residential midterm market, where the pricing tiers and discounts depend on the operator.

The 30-night cliff is the line. Pick the side that fits your stay length, then look at pricing.

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— HalfKey runs furnished Tokyo apartments for stays of 30 days to 12 months. Browse listings for your dates.