Mansion-Review.jp scraper & data API for Japan condo resale valuations. One record per building: monthly 坪単価 (price-per-tsubo) resale series + city/town/station benchmarks, deviation score, rating, listed-price range, build year, floors, units, station access, photos. Clean JSON/CSV.
The first scraper built for Japan's condo resale-valuation database — one clean record per building, with a full monthly price-per-tsubo (坪単価) history instead of a snapshot of for-sale ads.
💎 User Benefits
🏯 Building-level records — a deduplicated, one-row-per-building dataset, the right shape for valuation and trend work.
📈 Full resale history — up to ~15 years of monthly 坪単価 points (often 200+) per building.
📊 Momentum pre-computed — month-over-month and year-over-year % change ready to chart.
🧭 Market benchmarks built in — city, town and per-station 坪単価 series ship in the same record.
💴 Analyst-ready KPIs — latest 坪単価 in ¥/m², deviation score (偏差値), rating, listed-price range, build year, floors and units.
🔑 Optional rent series — add each building's chintai (rent) 坪単価 series for yield analysis.
📍 Area sweep or pinpoint — value every building in a prefecture/city/town/station, or specific buildings by URL/ID.
💰 Pay-per-result — charged per building valued; no charge until your input is validated.
🎯 Use Cases
Condo resale-price comparables
Investment & rental-yield analysis
Market trend dashboards and heatmaps
Valuation and price-forecasting models
Building-specific price-history reports
Feeding a Japan real-estate data API
📦 Output
JSON, CSV and Excel export
40+ structured fields per building, including the full monthly resale series and city/town/station benchmarks
