# 50 Union Avenue, Harrison

School in Harrison, New York. It covers 4,879 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

50 Union Avenue, Harrison. School in Harrison, New York. Property ID sp5x6zahz8tzv1r.

## Facts

**Facts about 50 Union Avenue, Harrison**

| Fact | Value | Source |
| --- | --- | --- |
| Address | 50 Union Avenue, Harrison, NY 10528 | [USA Structures](https://skypsi.com/property/ny/new-york/sp5x6zahz8tzv1r-50-union-avenue-harrison/#how-we-know) |
| Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp5x6zahz8tzv1r-50-union-avenue-harrison/#how-we-know) |
| Footprint | 4,879 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp5x6zahz8tzv1r-50-union-avenue-harrison/#how-we-know) |
| Perimeter | 365.65 feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp5x6zahz8tzv1r-50-union-avenue-harrison/#how-we-know) |
| Stories | 2 stories | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp5x6zahz8tzv1r-50-union-avenue-harrison/#how-we-know) |
| Parcel number | 5528010442.-2 | [County and state public records](https://skypsi.com/property/ny/new-york/sp5x6zahz8tzv1r-50-union-avenue-harrison/#how-we-know) |
| Land use | 612 Schools | [County and state public records](https://skypsi.com/property/ny/new-york/sp5x6zahz8tzv1r-50-union-avenue-harrison/#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 | $1,500 | $3,000 | $5,000 |

## Best method

- [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $3,000.

## Similar buildings nearby

- [50 Union Avenue, Harrison](https://skypsi.com/property/ny/new-york/sp2d0jk3tkg6ssy-50-union-avenue-harrison/)
- [480 Harrison Avenue, Harrison](https://skypsi.com/property/ny/new-york/spj5x01pd5dvgeq-480-harrison-avenue-harrison/)
- [255 Union Avenue, Harrison](https://skypsi.com/property/ny/new-york/sppyv0wpf3a9qn4-255-union-avenue-harrison/)
- [310 Hornidge Road, Mamaroneck](https://skypsi.com/property/ny/new-york/spjy7vg7qgyecph-310-hornidge-road-mamaroneck/)
- [450 Mamaroneck Avenue, Harrison](https://skypsi.com/property/ny/new-york/spme6ktvbvf4vnf-450-mamaroneck-avenue-harrison/)
- [10 Osborn Road, Rye](https://skypsi.com/property/ny/new-york/sphezmvnj7d3czf-10-osborn-road-rye/)
- [1275 Mamaroneck Avenue, White Plains](https://skypsi.com/property/ny/new-york/sp23e06w3kh4gb6-1275-mamaroneck-avenue-white-plains/)
- [114 West Boston Post Road, Mamaroneck](https://skypsi.com/property/ny/new-york/spb06vp5v0x5g7s-114-west-boston-post-road-mamaroneck/)

## 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.
- [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, 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/

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