Monthly, Furnished & Serviced Apartments in Toyosu (Tokyo, 2026): A Foreigner’s Guide

If you are moving to Tokyo and not ready to sign a two-year lease — or you simply need a furnished place for one to six months — a standard apartment is the wrong tool. What you want is a monthly apartment (マンスリーマンション, mansurii manshon): a furnished unit you rent by the month, with utilities and Wi-Fi already connected and no key money, guarantor, or agency fee. This guide explains how they work, what they cost in Tokyo (with a focus on Toyosu and Koto-ku, where we specialise), and how a foreigner books one without reading Japanese.

What a “Monthly Apartment” Actually Is in Japan

Japan splits short- and medium-stay housing into a few overlapping products. Knowing the differences saves you a lot of money:

• Monthly mansion (マンスリーマンション): Furnished, rented in 30-day blocks, contracts typically 1–12 months. Utilities, Wi-Fi, furniture, and kitchenware are bundled into one monthly price. No key money, no guarantor, minimal paperwork. This is the workhorse for relocations and project assignments.
• Serviced apartment: A higher-end monthly mansion with hotel-style services — front desk, cleaning, sometimes a gym. Common in Toyosu, Tsukishima, and the bay area towers. Pricier, but turnkey for executives and families.
• Weekly mansion (ウィークリーマンション): The same idea billed weekly, for very short stays. Per-night cost is higher than monthly.
• Share house / guest house: The cheapest medium-stay option, with shared kitchens and bathrooms. Good for solo arrivals on a budget.

The crucial point: none of these require the upfront package that makes standard Japanese leases so painful for foreigners — no ¥200,000+ in key money and deposits, no guarantor company screening, no in-person agency visit. You pay a daily/monthly rate and a small cleaning fee, and you can often book entirely online from overseas.

Why Foreigners Choose a Monthly Apartment First

In our experience helping foreign tenants in Koto-ku, monthly apartments solve four problems at once for newcomers:

• You arrive before you have a residence card or Japanese bank account. Standard landlords usually want both. Monthly operators often don’t.
• No guarantor. The single biggest barrier to standard renting as a foreigner disappears.
• Furnished and connected from day one. No buying a fridge, no waiting two weeks for the electricity and internet to be switched on.
• It buys you time to choose a real home. You can live in the neighbourhood, commute the actual route, and view long-term apartments in person before committing to a two-year contract.

That last point is why we often recommend a monthly apartment as a deliberate first step. Once you know Tokyo on the ground, the long-term search is far better informed. When you are ready for that step, see our complete step-by-step guide to renting in Japan as a foreigner.

Monthly, Furnished & Serviced Apartments in Toyosu & Koto-ku

Toyosu is one of Tokyo’s best-suited areas for monthly stays, and it is the neighbourhood we know best. The bay-area towers around Toyosu, Tsukishima, and Kachidoki were built for modern living: large furnished units, supermarkets and clinics at the base of the buildings, and a 10–15 minute commute to Otemachi and the financial district on the Yurakucho Line. Families like the parks and the LaLaport mall; professionals like the new buildings and the direct line to the office.

Typical monthly inventory in the Toyosu/Koto-ku area in 2026 looks like this:

These rates bundle what a standard apartment charges separately, so compare them on a total-cost basis, not on headline rent.

Furnished vs. serviced apartments in Toyosu. A furnished apartment in Toyosu — the monthly-mansion type in the table above — comes with furniture, appliances, and Wi-Fi already in place, but you handle your own cleaning and daily living; it is the most affordable way to stay furnished. A serviced apartment in Toyosu adds hotel-style extras — reception, periodic housekeeping, linen changes, and often a gym or concierge in the tower — which is why the serviced-apartment rates above sit higher. For most foreigners settling in for one to six months, a furnished monthly mansion is the practical pick; executives and relocating families who want turnkey comfort choose a serviced apartment.

Monthly vs. Standard Lease vs. Hotel: The Real Cost

For a single month, a monthly apartment looks expensive next to a standard apartment’s rent — until you add the move-in costs a standard lease demands on day one.

For any stay between roughly one and six months, the monthly apartment is almost always the cheapest and least stressful option. Beyond six to nine months, the math tips toward a standard lease — that is the point at which paying key money once becomes cheaper than the monthly premium. We model this break-even in our guide to Tokyo apartment initial costs.

How to Book One as a Foreigner (Without Reading Japanese)

The major monthly-apartment platforms are Japanese-language, but the booking flow is short and many now accept English email and overseas payment:

• Goodroom Monthly, Leopalace21, and Monthly Mansion portals list nationwide inventory; filter by station (e.g. 豊洲 / Toyosu) and contract length.
• Serviced-apartment operators (MetroResidences, Oakwood, and the bay-area tower operators) market directly to expats in English.
• Share-house operators such as Oakhouse run English sites and house large foreign communities.

What you will typically need: a passport, your visa or entry details, and a payment method. Some operators ask for proof of onward housing or employer details for longer stays. You generally do not need a residence card or Japanese bank account to book — the gap that blocks standard renting.

Things to check before you pay

• Is the rate truly all-in? Confirm utilities, Wi-Fi, and the cleaning/initial fee. A low headline rate sometimes hides a ¥30,000–¥50,000 setup charge.
• Cancellation terms. Monthly contracts can carry early-termination fees even though they feel flexible.
• Minimum nights. “Monthly” rates often require a 30-night minimum; shorter and you pay weekly rates.
• Location vs. the photos. “Toyosu area” listings can be a 15-minute walk or one station away. Check the actual address and nearest exit.

The Smart Play: Monthly First, Then Settle

The foreigners who land in Tokyo most smoothly almost never sign a long lease from abroad. They book a monthly apartment in the area they think they want — for many of our clients that is Toyosu or the wider bay area — live there for one to three months, and use that time to choose a permanent home with their eyes open. It costs a little more per month, but it removes the guarantor problem, the furnishing scramble, and the risk of committing two years to the wrong neighbourhood.

If you want help choosing between a monthly stay and a standard lease in Koto-ku — or you would like us to shortlist long-term apartments while you settle in — book a free 15-minute English consultation. We are a licensed agent based in Tokyo’s bay area and we do this every week.

Related guides: Moving to Toyosu: renting in Koto-ku · How to rent an apartment in Japan as a foreigner · Tokyo apartment initial costs

More on Toyosu

• Moving to Toyosu: The Ultimate Renting Guide
• Living in Toyosu: The Complete Expat Guide