# 4 91 Avenue, Hollis School in Hollis, New York. It covers 8,924 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 4 91 Avenue, Hollis. School in Hollis, New York. Property ID sp8kcfqsvgdr76q. ## Facts **Facts about 4 91 Avenue, Hollis** | Fact | Value | Source | | --- | --- | --- | | Address | 4 91 Avenue, Hollis, NY 11423 | [USA Structures](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Place name | Cambria Heights Academy | [Overture Maps places](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Place type | school | [Overture Maps places](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Footprint | 8,924 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Perimeter | 420.58 feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Height | 53.71 feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Stories | 3 stories | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Exterior wall area | 22,588 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Parcel number | 4104430001 | [County and state public records](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Land use | 08 Public Facilities & Institutions (class W2) | [County and state public records](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Year built | 1931 | [County and state public records](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Stories on the parcel record | 3 stories | [County and state public records](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#how-we-know) | | Building area on the parcel record | 32,300 square feet | [County and state public records](https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis/#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) | $2,000 | $3,500 | $6,000 | | Facade wash with mold or growth treatment | $3,000 | $5,500 | $9,500 | **Exterior soft wash from a boom lift and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $3,500 | $6,500 | $11,000 | ### Window cleaning **Window cleaning by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows only | $500 | $1,500 | $2,500 | | Windows inside and out | $1,000 | $2,500 | $4,500 | **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $5,000 | $10,000 | $17,000 | | Windows inside and out, rope access | $5,500 | $11,000 | $19,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $3,500. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $1,500. ## Similar buildings nearby - [15 182 Street, Jamaica](https://skypsi.com/property/ny/new-york/sp40axhhaszy4de-15-182-street-jamaica/) - [89 204 Street, Saint Albans](https://skypsi.com/property/ny/new-york/sp87w082str01hb-89-204-street-saint-albans/) - [1 Gothic Drive, Jamaica](https://skypsi.com/property/ny/new-york/spk7vkgz8jq1csx-1-gothic-drive-jamaica/) - [1 116 Avenue, Cambria Heights](https://skypsi.com/property/ny/new-york/sp0hd23rhdbvhdc-1-116-avenue-cambria-heights/) - [65 84 Avenue, Jamaica](https://skypsi.com/property/ny/new-york/spk2ef35jgzr90d-65-84-avenue-jamaica/) - [25 Guy R Brewer Boulevard, Jamaica](https://skypsi.com/property/ny/new-york/sptmsnnw31c0z8v-25-guy-r-brewer-boulevard-jamaica/) - [4 Union Turnpike, Jamaica](https://skypsi.com/property/ny/new-york/sp0p340w1v931nn-4-union-turnpike-jamaica/) - [15 Liberty Avenue, Jamaica](https://skypsi.com/property/ny/new-york/sp1qafp9hj6zy36-15-liberty-avenue-jamaica/) ## 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. - [Google Open Buildings](https://sites.research.google/open-buildings/): Building outlines and heights from Google Open Buildings, reached through the Overture Maps buildings theme. - [Overture Maps building footprints](https://opendatacommons.org/licenses/odbl/1-0/): Building outlines, heights and floor counts from the Overture Maps buildings 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, Google Open Buildings, Overture Maps building footprints, 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/ Building data from Google Open Buildings, reached through Overture Maps Foundation, overturemaps.org. https://sites.research.google/open-buildings/ Building footprints from Overture Maps Foundation, including OpenStreetMap contributors, Microsoft, Esri Community Maps contributors and USGS, under the Open Database License (ODbL). https://opendatacommons.org/licenses/odbl/1-0/ 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/sp8kcfqsvgdr76q-4-91-avenue-hollis/ JSON: https://skypsi.com/property/ny/new-york/sp8kcfqsvgdr76q-4-91-avenue-hollis.json Content license: https://skypsi.com/content-license.txt