# 684 Linden Boulevard, Brooklyn School in Brooklyn, New York. It covers 15,385 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 684 Linden Boulevard, Brooklyn. School in Brooklyn, New York. Property ID spj1np9k8zq6w4v. ## Facts **Facts about 684 Linden Boulevard, Brooklyn** | Fact | Value | Source | | --- | --- | --- | | Address | 684 Linden Boulevard, Brooklyn, NY 11203 | [USA Structures](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Place name | P.S. 135 Sheldon A. Brookner | [Overture Maps places](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Place type | public school | [Overture Maps places](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Footprint | 15,385 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Perimeter | 649.5 feet | [USA Structures](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Height | 60.33 feet | [USA Structures](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Stories | 5 stories | [USA Structures](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Exterior wall area | 39,187 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Parcel number | 3046730001 | [County and state public records](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Land use | 08 Public Facilities & Institutions (class W1) | [County and state public records](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Year built | 1931 | [County and state public records](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Stories on the parcel record | 5 stories | [County and state public records](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/#how-we-know) | | Building area on the parcel record | 54,375 square feet | [County and state public records](https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-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 - [790 East New York Avenue, Brooklyn](https://skypsi.com/property/ny/new-york/sp47w357zwx9rmh-790-east-new-york-avenue-brooklyn/) - [600 Kingston Avenue, Brooklyn](https://skypsi.com/property/ny/new-york/spnm9q6a0fbmn6j-600-kingston-avenue-brooklyn/) - [60 East 94 Street, Brooklyn](https://skypsi.com/property/ny/new-york/spvh0053htf7myd-60-east-94-street-brooklyn/) - [5800 Tilden Avenue, Brooklyn](https://skypsi.com/property/ny/new-york/spaa33xw79sw8mr-5800-tilden-avenue-brooklyn/) - [135 East 34 Street, Brooklyn](https://skypsi.com/property/ny/new-york/sp2gd1a5wmz6b2k-135-east-34-street-brooklyn/) - [4718 Farragut Road, Brooklyn](https://skypsi.com/property/ny/new-york/sp6rk1k5tnkzdaq-4718-farragut-road-brooklyn/) - [129 Grafton Street, Brooklyn](https://skypsi.com/property/ny/new-york/spvz263w4vcm7rt-129-grafton-street-brooklyn/) - [1224 Park Place, Brooklyn](https://skypsi.com/property/ny/new-york/spqanfgpj3ezevm-1224-park-place-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 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 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/ 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/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn/ JSON: https://skypsi.com/property/ny/new-york/spj1np9k8zq6w4v-684-linden-boulevard-brooklyn.json Content license: https://skypsi.com/content-license.txt