# 4520 4 Avenue, Brooklyn Apartments in Brooklyn, New York. It covers 10,128 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 4520 4 Avenue, Brooklyn. Apartments in Brooklyn, New York. Property ID spn6t9c5q682edm. ## Facts **Facts about 4520 4 Avenue, Brooklyn** | Fact | Value | Source | | --- | --- | --- | | Address | 4520 4 Avenue, Brooklyn, NY 11220 | [USA Structures](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Building type | Apartments | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Footprint | 10,128 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Perimeter | 483.83 feet | [USA Structures](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Height | 80.05 feet | [County and state public records](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Stories | 8 stories | [County and state public records](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Exterior wall area | 25,382 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Parcel number | 3007460039 | [County and state public records](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Land use | 08 Public Facilities & Institutions (class N9) | [County and state public records](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Year built | 1979 | [County and state public records](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Stories on the parcel record | 8 stories | [County and state public records](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn/#how-we-know) | | Building area on the parcel record | 110,103 square feet | [County and state public records](https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-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 by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash (drone) | $3,500 | $6,500 | $10,500 | | Facade wash with mold or growth treatment | $5,000 | $9,500 | $16,500 | **Exterior soft wash from a boom lift and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $6,500 | $11,500 | $19,500 | ### Window cleaning **Window cleaning by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows only | $1,500 | $2,500 | $4,500 | | Windows inside and out | $2,000 | $4,500 | $7,500 | **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $8,500 | $17,000 | $30,000 | | Windows inside and out, rope access | $9,500 | $19,000 | $33,500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $6,500. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $2,500. ## Similar buildings nearby - [323 45 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spavq9m7k1e6vw3-323-45-street-brooklyn/) - [349 46 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spn386a2qh345m0-349-46-street-brooklyn/) - [324 45 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spbzqh4srct1xke-324-45-street-brooklyn/) - [4423 4 Avenue, Brooklyn](https://skypsi.com/property/ny/new-york/sptr5e9jj0f13z3-4423-4-avenue-brooklyn/) - [359 44 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sp4jkkc0mna6nqx-359-44-street-brooklyn/) - [365 44 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spyw03vn4pycryb-365-44-street-brooklyn/) - [343 44 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sp13kvgbza4d6gr-343-44-street-brooklyn/) - [335 44 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sps0h84kgs9rtr9-335-44-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/spn6t9c5q682edm-4520-4-avenue-brooklyn/ JSON: https://skypsi.com/property/ny/new-york/spn6t9c5q682edm-4520-4-avenue-brooklyn.json Content license: https://skypsi.com/content-license.txt