# 343 Hawthorne Avenue, Uniondale Government in Uniondale, New York. It covers 1,187 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 343 Hawthorne Avenue, Uniondale. Government in Uniondale, New York. Property ID sp5jnarbjz6267r. ## Facts **Facts about 343 Hawthorne Avenue, Uniondale** | Fact | Value | Source | | --- | --- | --- | | Address | 343 Hawthorne Avenue, Uniondale, NY 11553 | [USA Structures](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#how-we-know) | | Building type | Government | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#how-we-know) | | Footprint | 1,187 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#how-we-know) | | Perimeter | 138 feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#how-we-know) | | Height | 11.36 feet | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#how-we-know) | | Stories | 1 story | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#how-we-know) | | Exterior wall area | 1,568 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#how-we-know) | | Parcel number | 282089-34.-492-116 | [County and state public records](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#how-we-know) | | Land use | 662 - Police and Fire Protection, Electrical Signal Equipment and Other Facilities for Fire, Police, Civil Defense, etc. | [County and state public records](https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/#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 | $500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $500. ## Similar buildings nearby - [350 Front Street, Hempstead](https://skypsi.com/property/ny/new-york/spa3aczdytfgzg6-350-front-street-hempstead/) - [830 Stewart Avenue, Garden City](https://skypsi.com/property/ny/new-york/spc5fg44y18nk60-830-stewart-avenue-garden-city/) - [605 Stewart Avenue, Garden City](https://skypsi.com/property/ny/new-york/sp7p1npn8z6vsmy-605-stewart-avenue-garden-city/) - [1515 Stewart Avenue, Westbury](https://skypsi.com/property/ny/new-york/spm9573zz07xevr-1515-stewart-avenue-westbury/) - [100 Supreme Court Drive, Mineola](https://skypsi.com/property/ny/new-york/spr39c0g7dswhft-100-supreme-court-drive-mineola/) - [400 County Seat Drive, Garden City](https://skypsi.com/property/ny/new-york/sps86dnmgz3grdy-400-county-seat-drive-garden-city/) - [262 Old Country Road, Mineola](https://skypsi.com/property/ny/new-york/sp3cb7kbtvdttbk-262-old-country-road-mineola/) - [1490 Franklin Avenue, Garden City](https://skypsi.com/property/ny/new-york/sp24q0tmb72aa66-1490-franklin-avenue-garden-city/) ## 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. - [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://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/ Page: https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale/ JSON: https://skypsi.com/property/ny/new-york/sp5jnarbjz6267r-343-hawthorne-avenue-uniondale.json Content license: https://skypsi.com/content-license.txt