{"building":"Castle Rock","building_id":34071,"data_url":"https://www.realestatemumbai.com/data/building/34071.json","for_rent":11,"for_sale":5,"live_listings":16,"location":"Powai","page_url":"https://www.realestatemumbai.com/building-rates-castle-rock-powai-34071","rent_pm_median":130000,"rent_pm_range":[75000,215000],"rent_vs_buy":{"signal":"insufficient_data","verdict":"Not enough paired sale + rent data to judge yet.","yield_pct":null},"sale_rate_confidence":"thin","sale_rate_psf_median":null,"sale_rate_psf_range":null,"sublocation":"Hiranandani Gardens","trend":{"points":[{"date":"2026-07-03","rent":130000,"sale_psf":null},{"date":"2026-07-04","rent":130000,"sale_psf":null}],"tracking_since":"2026-07-03"},"typical_carpet_sqft":1000}