# 3801 9 Ave, Brooklyn Government in Brooklyn, New York. It covers 2,077 square feet on the ground. Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 27, 2026. Method propdata-estimator-v6. ## This building 3801 9 Ave, Brooklyn. Government in Brooklyn, New York. Property ID sp4evycj2m4geg9. ## Facts **Facts about 3801 9 Ave, Brooklyn** | Fact | Value | Source | | --- | --- | --- | | Address | 3801 9 Ave, Brooklyn, NY 11232 | [Overture Maps addresses](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | | Building type | Government | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | | Place name | Ninth Avenue (BMT West End Line) | [Overture Maps places](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | | Place type | transportation | [Overture Maps places](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | | Footprint | 2,077 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | | Perimeter | 202.9 feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | | Stories | 1 story | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | | Parcel number | 3009080177 | [County and state public records](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | | Land use | 07 Transportation & Utility (class U0) | [County and state public records](https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/#how-we-know) | ## Cost ranges Whole-building ranges from the SkyPSI estimator, calibrated October 2, 2026. Grade C: modelled from the Texas calibration. [What the grades mean](https://skypsi.com/estimates/methodology/confidence-grades/). ### Exterior soft wash **Exterior soft wash from a boom lift, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $500 | $500 | $1,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $500. ## Similar buildings nearby - [500 36 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spnd7x6f7wm8gmr-500-36-street-brooklyn/) - [871 5 Ave, Brooklyn](https://skypsi.com/property/ny/new-york/spwq0wk7se0m51v-871-5-ave-brooklyn/) - [422 51 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spn8tr51zevknf6-422-51-street-brooklyn/) - [463 12 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spa6535avj2p7ed-463-12-street-brooklyn/) - [400 5 Avenue, Brooklyn](https://skypsi.com/property/ny/new-york/spng8hr7xb8b0n9-400-5-avenue-brooklyn/) - [5100 1 Avenue, Brooklyn](https://skypsi.com/property/ny/new-york/spmmnd8vabzg4kf-5100-1-avenue-brooklyn/) - [6700 Shore Road, Brooklyn](https://skypsi.com/property/ny/new-york/sph2pz5xrxer1jn-6700-shore-road-brooklyn/) - [1561 Bedford Avenue, Brooklyn](https://skypsi.com/property/ny/new-york/sp9zyrke2k09t4e-1561-bedford-avenue-brooklyn/) ## How we know Each fact names the source it comes from. A building file carries the source of each field, and SkyPSI shows that source beside the fact. - [County and state public records](https://skypsi.com/estimates/methodology/sources-and-licensing/): Situs addresses, parcel numbers, land use, year built and floor counts from county appraisal districts and state open data. - [USA Structures](https://disasters.geoplatform.gov/USA_Structures/): Building footprints, heights and occupancy from FEMA's USA Structures. - [Overture Maps addresses](https://docs.overturemaps.org/attribution/): Street addresses from the Overture Maps addresses theme. - [Overture Maps places](https://docs.overturemaps.org/attribution/): Business and place names from the Overture Maps places theme. - [SkyPSI estimator](https://skypsi.com/estimates/methodology/sources-and-licensing/): SkyPSI's own price model, calibrated rates and building-class rules. Cost ranges come from the SkyPSI estimator, calibrated October 2, 2026. [How a SkyEstimate is built](https://skypsi.com/estimates/methodology/how-a-skyestimate-is-built/). [Request a Quote](https://skypsi.com/request-a-quote) --- Sources: County and state public records, USA Structures, Overture Maps addresses, Overture Maps places, SkyPSI estimator. Parcel and address facts from county appraisal districts and state open-data programs (public records). https://skypsi.com/estimates/methodology/sources-and-licensing/ Building footprints: USA Structures, FEMA Response Geospatial Office, Oak Ridge National Laboratory and U.S. Geological Survey (CC BY 4.0). https://disasters.geoplatform.gov/USA_Structures/ Addresses: Overture Maps Foundation, overturemaps.org (addresses theme), including the U.S. Department of Transportation National Address Database (NAD). https://docs.overturemaps.org/attribution/ Business names: Overture Maps Foundation, overturemaps.org (places theme, CDLA Permissive 2.0). https://docs.overturemaps.org/attribution/ Page: https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn/ JSON: https://skypsi.com/property/ny/new-york/sp4evycj2m4geg9-3801-9-ave-brooklyn.json Content license: https://skypsi.com/content-license.txt