# 3921 6 Avenue, Brooklyn Apartments in Brooklyn, New York. It covers 7,982 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 3921 6 Avenue, Brooklyn. Apartments in Brooklyn, New York. Property ID spjv78vmcgbzszh. ## Facts **Facts about 3921 6 Avenue, Brooklyn** | Fact | Value | Source | | --- | --- | --- | | Address | 3921 6 Avenue, Brooklyn, NY 11232 | [USA Structures](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Building type | Apartments | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Footprint | 7,982 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Perimeter | 506.04 feet | [USA Structures](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Height | 43.08 feet | [USA Structures](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Stories | 4 stories | [USA Structures](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Exterior wall area | 21,799 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Parcel number | 3009140001 | [County and state public records](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Land use | 02 Multi-Family Walk-Up Buildings (class C1) | [County and state public records](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Year built | 1928 | [County and state public records](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Stories on the parcel record | 4 stories | [County and state public records](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/#how-we-know) | | Building area on the parcel record | 32,000 square feet | [County and state public records](https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-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 | $3,500 | $6,500 | $10,500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $6,500. ## Similar buildings nearby - [613 40 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sphn2rbnhvr52an-613-40-street-brooklyn/) - [621 40 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sp0tj2660cmts8z-621-40-street-brooklyn/) - [621 40 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sp5k684ss7nwne6-621-40-street-brooklyn/) - [625 40 Street, Brooklyn](https://skypsi.com/property/ny/new-york/speyc8qg7q7khxg-625-40-street-brooklyn/) - [602 39 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spkdf4bkyvspnr3-602-39-street-brooklyn/) - [631 40 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spy51vsb9g0vb1h-631-40-street-brooklyn/) - [626 40 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sp9zsgx1dq8wnfg-626-40-street-brooklyn/) - [631 40 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sprv2sy0ap40xh4-631-40-street-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://comptroller.texas.gov/taxes/property-tax/): 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. - [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, SkyPSI estimator. Parcel and address facts from county appraisal districts and state open-data programs (public records). https://comptroller.texas.gov/taxes/property-tax/ 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/ Page: https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn/ JSON: https://skypsi.com/property/ny/new-york/spjv78vmcgbzszh-3921-6-avenue-brooklyn.json Content license: https://skypsi.com/content-license.txt