Karuizawa is a mountain resort town, and its rental market reflects that: alongside ordinary year-round homes, there is a large market of holiday houses and seasonal lets. For a foreign resident planning to live here full-time, that mix — plus the Japanese-language rental process — can make finding a home harder than it needs to be. This guide explains how renting works, what it costs, and what to watch for. If you are just arriving, start with Moving to Karuizawa: A Foreigner's Guide for the bigger picture.
How is renting in Karuizawa different?
A few things set Karuizawa apart from renting in a big city:
- Seasonal vs year-round stock. Many properties are second homes or summer-only lets. Be explicit that you want a year-round lease (通年).
- Winter matters. Karuizawa gets cold and snowy. Insulation, heating type, and frozen-pipe risk are real factors — ask about them before you sign.
- Fewer pure-rental units. Compared with a city, there are fewer standard apartments, so good year-round rentals move quickly.
- Distance and access. Being near Karuizawa Station or a bus route matters a lot, especially if you don't drive.
How does the Japanese rental process work?
The process is broadly the same across Japan:
- Find a property through a real-estate agency (不動産会社) or listings site.
- Apply and pass screening (入居審査). The landlord and guarantor company review your income, employment, and residence status.
- Sign the contract and pay the move-in costs.
- Move in, usually after the start date on the lease.
Screening is where foreign renters most often need support — applications are in Japanese and may ask for a Japanese-speaking contact.
What does it cost to move in?
Japanese move-in costs stack up to several months' rent combined. The usual components:
- Deposit (敷金) — refundable, minus cleaning and any damage.
- Key money (礼金) — a non-refundable payment to the landlord; not always charged.
- Agency fee (仲介手数料) — the real-estate agency's commission.
- Guarantor-company fee (保証会社) — a fee to the company that guarantees your rent.
- First month's rent, sometimes pro-rated.
Always ask for the full breakdown (初期費用) in writing before committing.
What documents will I need?
Have these ready to speed up screening:
- Residence card (在留カード)
- Proof of income or employment (payslips, contract, or company letter)
- A Japanese bank account for rent payment
- A personal seal (印鑑), in some cases
- An emergency contact, ideally someone reachable in Japan
Tips for foreign renters in Karuizawa
- Confirm the lease is year-round, not seasonal, if you plan to stay.
- Ask about heating and insulation — a poorly insulated holiday house is expensive to keep warm in a Karuizawa winter.
- Check snow clearing responsibilities for the driveway and access road.
- Read the local rules on garbage, parking, and neighbourhood associations.
How ERISA helps you rent in Karuizawa
ERISA (有限会社えり紗) supports foreign residents through the whole rental journey: shortlisting suitable year-round properties, coming with you to viewings, explaining and translating the contract and the move-in cost breakdown, and acting as a Japanese point of contact during screening. We work with local agencies in English and Japanese so you understand exactly what you are signing.
Looking for a home in Karuizawa? Get in touch and tell us what you need.