# 21 79 Avenue, Ridgewood School in Ridgewood, New York. It covers 39,203 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 79 Avenue, Ridgewood. School in Ridgewood, New York. Property ID spktb1baw7wnzec. ## Facts **Facts about 21 79 Avenue, Ridgewood** | Fact | Value | Source | | --- | --- | --- | | Address | 21 79 Avenue, Ridgewood, NY 11385 | [USA Structures](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Place name | PS 113 Isaac Chauncey School | [Overture Maps places](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Place type | public school | [Overture Maps places](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Footprint | 39,203 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Perimeter | 1,482.55 feet | [USA Structures](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Height | 33.66 feet | [USA Structures](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Stories | 3 stories | [USA Structures](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Exterior wall area | 49,905 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Parcel number | 4038460040 | [County and state public records](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Land use | 08 Public Facilities & Institutions (class W1) | [County and state public records](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Year built | 1928 | [County and state public records](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Stories on the parcel record | 3 stories | [County and state public records](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#how-we-know) | | Building area on the parcel record | 104,284 square feet | [County and state public records](https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood/#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 | $8,000 | $14,500 | $24,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $14,500. ## Similar buildings nearby - [5 78 Avenue, Ridgewood](https://skypsi.com/property/ny/new-york/spjjk40hx01xczh-5-78-avenue-ridgewood/) - [5 84 Street, Ridgewood](https://skypsi.com/property/ny/new-york/sp9hyzp6d79gptc-5-84-street-ridgewood/) - [30 Metropolitan Avenue, Forest Hills](https://skypsi.com/property/ny/new-york/spdexr55bgzae2v-30-metropolitan-avenue-forest-hills/) - [School](https://skypsi.com/property/ny/new-york/spszqq6wty277nw-education/) - [45 Myrtle Avenue, Ridgewood](https://skypsi.com/property/ny/new-york/spyrhj3k5vh1rmt-45-myrtle-avenue-ridgewood/) - [27 Metropolitan Avenue, Forest Hills](https://skypsi.com/property/ny/new-york/sprncp58qahxe5m-27-metropolitan-avenue-forest-hills/) - [41 Forest Parkway, Woodhaven](https://skypsi.com/property/ny/new-york/sp1rwg392sf9jr4-41-forest-parkway-woodhaven/) - [52 85 Street, Woodhaven](https://skypsi.com/property/ny/new-york/sp1dcxpbt0kgj75-52-85-street-woodhaven/) ## 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/spktb1baw7wnzec-21-79-avenue-ridgewood/ JSON: https://skypsi.com/property/ny/new-york/spktb1baw7wnzec-21-79-avenue-ridgewood.json Content license: https://skypsi.com/content-license.txt