{"id":"koshigaya-laketown-ext-2026","projectName":"越谷レイクタウン拡張計画","developer":"イオン・三菱地所","status":"under_construction","category":"waterfront","completionYear":2026,"description":"国内最大級ショッピングモール・越谷レイクタウンの追加棟整備。大相模調節池沿いのウォーターフロントに住宅・ホテルを追加開発。","location":{"lat":35.8537,"lng":139.7929,"cityCode":"11234","nearestStation":"越谷レイクタウン","impactRadiusM":1000},"scores":{"investment":62,"actualUpliftPct":null},"prices":{"estimatedPerM2":{"min":42,"max":68},"listings":null,"rentPerM2Month":0.22},"landPriceHistory":null,"areaDemographics":null}