# 299 Islip Avenue, Islip Retail in Islip, New York. It covers 1,632 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 299 Islip Avenue, Islip. Retail in Islip, New York. Property ID sp089fm7b09f1gz. ## Facts **Facts about 299 Islip Avenue, Islip** | Fact | Value | Source | | --- | --- | --- | | Address | 299 Islip Avenue, Islip, NY 11751 | [USA Structures](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#how-we-know) | | Building type | Retail | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#how-we-know) | | Footprint | 1,632 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#how-we-know) | | Perimeter | 162.34 feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#how-we-know) | | Height | 11.71 feet | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#how-we-know) | | Stories | 1 story | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#how-we-know) | | Exterior wall area | 1,901 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#how-we-know) | | Parcel number | 472889320.-2-40 | [County and state public records](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#how-we-know) | | Land use | 433 Auto body, tire shops, other related auto sales | [County and state public records](https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/#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 | $500 | $500 | $1,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $500. ## Similar buildings nearby - [303 Islip Avenue, Islip](https://skypsi.com/property/ny/new-york/spbw1jsbfyc7yzn-303-islip-avenue-islip/) - [280 Islip Avenue, Islip](https://skypsi.com/property/ny/new-york/spbpq1ptp9q7qh8-280-islip-avenue-islip/) - [268 Islip Avenue, Islip](https://skypsi.com/property/ny/new-york/sp014keb24k9kgn-268-islip-avenue-islip/) - [254 Islip Avenue, Islip](https://skypsi.com/property/ny/new-york/spdw5xhevda8h9m-254-islip-avenue-islip/) - [252 Islip Avenue, Islip](https://skypsi.com/property/ny/new-york/spjefjy9mdpzvtn-252-islip-avenue-islip/) - [237 Islip Avenue, Islip](https://skypsi.com/property/ny/new-york/spb3vjd6k5er65n-237-islip-avenue-islip/) - [223 Islip Avenue, Islip](https://skypsi.com/property/ny/new-york/spa2ta3y9nwdtmp-223-islip-avenue-islip/) - [226 Islip Avenue, Islip](https://skypsi.com/property/ny/new-york/sp8fvex9zt4993b-226-islip-avenue-islip/) ## 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. - [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. - [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, 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/ 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/ Page: https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip/ JSON: https://skypsi.com/property/ny/new-york/sp089fm7b09f1gz-299-islip-avenue-islip.json Content license: https://skypsi.com/content-license.txt