Reading Japan's property market through data

Rents, purchase prices, railway lines, building age and yield. We explain the differences we find in the data, one chart at a time.

Purchase prices · 2026-08-06What does a 1LDK cost across Tokyo? Comparing the central wards with KatsushikaA like-for-like look at advertised 1LDK sale prices across Tokyo's 23 wards. The typical band is ¥80 million to ¥90 million in Minato, Chiyoda and Chuo, but ¥20 million to ¥30 million in Katsushika.
Railway lines and rent · 2026-08-06Rent varies by ¥67,000 around the Yamanote Line, even after fixing the home sizeA station-by-station comparison of estimated rent for a 25m² home around the Yamanote Line. Shibuya is about ¥168,000 a month and Yurakucho about ¥101,000, a gap of roughly ¥67,000.
Rental yield · 2026-08-06How building age changes 1LDK rental yield in ArakawaA building-age comparison for 1LDK homes in Arakawa. Gross rental yield is 3.29% at 0 to 10 years and 5.22% at 41 years or older because purchase prices fall further than rents.