Onigiri · No. 7
Bite-size Japan real estate
A pivotal date that changes real estate fortunes.
In Japan, a building's birth year might just be its most important feature. Grab a hard hat and a calendar. Let's snack.
Buildings approved from June 1981 follow the new seismic standard (新耐震), making them safer bets. By contrast, pre-1981 buildings are the riskier old standard (旧耐震) stock. Many banks and buyers avoid these older buildings, leading to deep discounts. Why? One date changes safety, financeability, and resale value.
The takeaway: check the building date before signing on the dotted line.
Owning a Japanese condo means paying a monthly management fee (管理費) and a repair reserve (修繕積立金) for future repairs. The trick? These reserves often fall short and rise as buildings age, risking special levies on owners. Fees stick around whether you're there or not.
The takeaway: scrutinize that reserve fund before buying.
Since 2019, Minato — the embassy district — led Tokyo's condo price race with a ×1.57 increase. Chuo and Koto followed closely. Meanwhile, Ota and Bunkyo lagged at ×1.27, with Sumida trailing at ×1.22.
The takeaway: location is king, but Minato's wearing the crown.
By the numbers
Sources: Japan Property Research live listings crawl (1M+ listings, updated weekly) and 5.8M MLIT transaction-price records (不動産取引価格情報). Weekly figures cover the last full Mon–Sun week; structural figures are medians with a minimum 80 sales per segment; latest year preliminary.
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