Free Japanese Real Estate & Akiya Due Diligence Tools
Quick, zero-login calculators to evaluate Japanese building codes, road compliance, and land liabilities before you make an offer.
Article 42 Road Setback Calculator
Calculate required land surrender (setback area in m² and tsubo) for narrow roads under Article 42 Paragraph 2 of the Building Standards Act.
Launch CalculatorSettsudo Gimu (2m Road Contact) Checker
Step-by-step decision tree to check whether flag-lot or alley properties meet legal frontage requirements.
Launch Checker2026 Akiya Closing Cost Calculator
Add up the real cash needed to buy a Japanese vacant house: agent commission, stamp duty, registration tax, scrivener fees and acquisition tax.
Launch CalculatorJapanese Room Size Converter
Convert tatami mats (畳), tsubo (坪), square meters and square feet instantly — built for reading akiya and Japanese property listings.
Launch ConverterAirbnb / Minpaku Feasibility Calculator
Estimate annual short-term rental revenue, running costs and how many years it takes to break even after purchase and renovation — with the 180-night minpaku cap built in.
Launch CalculatorUrbanization Control Area (Shigaika Chōsei) Decoder
Check if a rural property permits residential reconstruction without special prefectural governor permits.
Launch DecoderHave a live listing from Suumo or Athome?
Run our Full AkiyaCheck Scanner to analyze zoning, hazard zones, and generate city hall scripts automatically.