# 21 48 Avenue, Bayside School in Bayside, New York. It covers 12,854 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 21 48 Avenue, Bayside. School in Bayside, New York. Property ID spjgjm738d5taay. ## Facts **Facts about 21 48 Avenue, Bayside** | Fact | Value | Source | | --- | --- | --- | | Address | 21 48 Avenue, Bayside, NY 11361 | [USA Structures](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Place name | Keil Bros | [Overture Maps places](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Place type | nursery and gardening | [Overture Maps places](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Footprint | 12,854 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Perimeter | 649.3 feet | [USA Structures](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Height | 52.49 feet | [County and state public records](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Stories | 4 stories | [County and state public records](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Exterior wall area | 34,084 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Parcel number | 4073270028 | [County and state public records](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Land use | 08 Public Facilities & Institutions (class W1) | [County and state public records](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Year built | 2016 | [County and state public records](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Stories on the parcel record | 4 stories | [County and state public records](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#how-we-know) | | Building area on the parcel record | 73,060 square feet | [County and state public records](https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside/#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) | $3,000 | $5,500 | $9,500 | | Facade wash with mold or growth treatment | $4,500 | $8,000 | $14,000 | **Exterior soft wash from a boom lift and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $5,500 | $10,000 | $17,000 | ### Window cleaning **Window cleaning by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows only | $1,000 | $2,000 | $3,500 | | Windows inside and out | $2,000 | $3,500 | $6,500 | **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $7,500 | $15,000 | $26,000 | | Windows inside and out, rope access | $8,000 | $16,500 | $29,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $5,500. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $2,000. ## Similar buildings nearby - [21 48 Avenue, Bayside](https://skypsi.com/property/ny/new-york/spbd59xxvpkvvbg-21-48-avenue-bayside/) - [12 211 Street, Bayside](https://skypsi.com/property/ny/new-york/spjp8te90sfps1c-12-211-street-bayside/) - [6 48 Avenue, Oakland Gardens](https://skypsi.com/property/ny/new-york/sp63bbbqerx2j71-6-48-avenue-oakland-gardens/) - [35 Oceania Street, Bayside](https://skypsi.com/property/ny/new-york/spgx3egw35tn2xe-35-oceania-street-bayside/) - [35 Oceania Street, Bayside](https://skypsi.com/property/ny/new-york/spt1rkhgm8q84wn-35-oceania-street-bayside/) - [35 Oceania Street, Bayside](https://skypsi.com/property/ny/new-york/spjv68qsj5a9mxp-35-oceania-street-bayside/) - [35 Oceania Street, Bayside](https://skypsi.com/property/ny/new-york/spg03z68kdrqmsm-35-oceania-street-bayside/) - [45 46 Road, Bayside](https://skypsi.com/property/ny/new-york/spy3fgkqpbdk812-45-46-road-bayside/) ## 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. - [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://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/ 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/spjgjm738d5taay-21-48-avenue-bayside/ JSON: https://skypsi.com/property/ny/new-york/spjgjm738d5taay-21-48-avenue-bayside.json Content license: https://skypsi.com/content-license.txt