Question 1

What is Yudane?

Accepted Answer

Yudane is a property intelligence platform for foreign buyers of Japanese real estate in Fukuoka Prefecture. It aggregates vacant house (akiya) listings from 11 sources, scores and translates every property, and provides peer-reviewed risk analysis for asbestos, termite damage, flood, landslide, tsunami, storm surge, and earthquake probability.

Question 2

How is Yudane different from other akiya listing sites?

Accepted Answer

Yudane is the only platform that provides peer-reviewed risk analysis alongside property listings. Every property is assessed for asbestos risk (based on construction era and materials), termite damage probability (calibrated against MLIT 2013 national survey data), and natural hazard exposure. The methodology is published as preprints with DOIs, and the underlying datasets are released as government-grade open data under CC BY 4.0.

Question 3

What data sources does Yudane use?

Accepted Answer

Yudane aggregates listings from 11 sources including municipal akiya banks (Kitakyushu, Itoshima, Miyama, Chikugo, Yukuhashi, Buzen, Chikujo, Nakama, Asakura), F-takken (Fukuoka Prefecture Real Estate Association), and LIFULL HOME'S. Risk data uses MLIT Real Estate Information Library transaction data, MLIT hazard map portal tiles, NIED J-SHIS earthquake probability, and Fukuoka Prefecture water quality surveys. All data is updated daily.

Question 4

Is Yudane's research peer-reviewed?

Accepted Answer

Yes. Yudane publishes its risk methodology as preprint papers on medRxiv. The asbestos risk index paper (DOI: medRxiv MEDRXIV/2026/348923) covers 1,360 residential districts across 51 municipalities. The termite damage model paper (DOI: medRxiv MEDRXIV/2026/349072) is calibrated against the MLIT 2013 national survey. Both datasets are released under CC BY 4.0.

Yudane.

The only property intelligence platform for foreign buyers in Fukuoka.