# Changelog of Mansion Review Scraper — Japan Condo Valuation Data & API (`sian.agency/mansion-review-valuation-scraper`) Actor

- **URL**: https://apify.com/sian.agency/mansion-review-valuation-scraper/changelog.md
- **Full Actor documentation**: https://apify.com/sian.agency/mansion-review-valuation-scraper.md

## Changelog

### \[2026-06-20]

#### 🎉 Mansion Review Valuation Scraper — Launch!

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