Five Things That Surprise Foreign Buyers in Japan
Most of the Japanese property process is familiar: find a place, sign a contract, pay, register. Five details routinely catch foreign buyers off guard.
1. Cash offers dominate
Roughly 40% of residential transactions are all-cash, including most akiya, many investment units, and a meaningful share of central-Tokyo deals. Sellers are genuinely indifferent to financing in a way that surprises buyers from mortgage-default markets. If you're competing on a hot listing, cash closes 2-3 weeks faster than a mortgage.
2. Setback (セットバック) can shrink your land
If a property fronts a road narrower than 4 meters, the Building Standards Act requires you to set the building line back to create a future 4m width. The strip becomes effectively unusable land that you still own and pay tax on. Ask for the setback area in m² before bidding. It can quietly remove 5-15% of usable footprint.
3. No road frontage, no rebuild
Article 43 of the Building Standards Act requires at least 2 meters of frontage on a designated road to legally rebuild. Older properties on private alleys or down narrow stair-passages often fail this test. They can be bought, lived in, even renovated, but cannot be torn down and reconstructed. Listings that are unusually cheap for their location are often hiding this.
4. Renovation may need permission
Major structural changes (moving load-bearing walls, expanding footprint, changing roof) require building permits. Mansion units have additional 管理規約 (HOA bylaws) that can prohibit floor-material changes, water-supply rerouting, or window modifications. Cosmetic refresh is usually free; anything structural is not.
5. The 重要事項説明 takes hours
Before signing the purchase contract, the buyer's licensed agent reads aloud a 重要事項説明書 (statement of important matters) covering zoning, easements, restrictive covenants, building law status, water rights, and known defects. It is legally required and typically takes 60-90 minutes. Foreign buyers expecting a quick title-company-style closing are often unprepared. Read the document in advance and bring a translator if your Japanese isn't legal-grade.
None of these are dealbreakers, but each one routinely turns up at signing instead of inspection. Catching them early is cheaper than catching them late.