# 1829 Lexington Avenue, New York School in New York, New York. It covers 35,499 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 1829 Lexington Avenue, New York. School in New York, New York. Property ID sp9jgmdyv509exq. ## Facts **Facts about 1829 Lexington Avenue, New York** | Fact | Value | Source | | --- | --- | --- | | Address | 1829 Lexington Avenue, New York, NY 10029 | [USA Structures](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Footprint | 35,499 square feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Perimeter | 1,272.53 feet | [USA Structures](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Height | 183.73 feet | [County and state public records](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Stories | 14 stories | [County and state public records](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Exterior wall area | 233,798 square feet | [SkyPSI estimator](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Parcel number | 1016400021 | [County and state public records](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Land use | 03 Multi-Family Elevator Buildings (class D9) | [County and state public records](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Year built | 1947 | [County and state public records](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Stories on the parcel record | 14 stories | [County and state public records](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#how-we-know) | | Building area on the parcel record | 502,522 square feet | [County and state public records](https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/#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) | $20,000 | $37,500 | $63,000 | | Facade wash with mold or growth treatment | $30,000 | $55,500 | $95,500 | **Exterior soft wash from a boom lift and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $37,500 | $68,000 | $113,000 | ### Window cleaning **Window cleaning by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows only | $7,500 | $15,000 | $25,000 | | Windows inside and out | $12,500 | $25,000 | $45,500 | **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $50,500 | $100,500 | $176,000 | | Windows inside and out, rope access | $55,500 | $110,500 | $196,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $37,500. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $15,000. ## Similar buildings nearby - [240 East 109 Street, New York](https://skypsi.com/property/ny/new-york/spp5tt4tw03q3nw-240-east-109-street-new-york/) - [2250 2 Avenue, New York](https://skypsi.com/property/ny/new-york/speyvfp2h20wc1a-2250-2-avenue-new-york/) - [2350 2 Avenue, New York](https://skypsi.com/property/ny/new-york/sp4qghry9k0bs1d-2350-2-avenue-new-york/) - [260 Pleasant Avenue, New York](https://skypsi.com/property/ny/new-york/sppp3a1s77gvz0h-260-pleasant-avenue-new-york/) - [2005 Madison Avenue, New York](https://skypsi.com/property/ny/new-york/sp30cf9t2bntemz-2005-madison-avenue-new-york/) - [440 East 102 Street, New York](https://skypsi.com/property/ny/new-york/spa2jymzjp4kdy1-440-east-102-street-new-york/) - [156 West 122 Street, New York](https://skypsi.com/property/ny/new-york/sp4p2avce0dqdz5-156-west-122-street-new-york/) - [110 West 124 Street, New York](https://skypsi.com/property/ny/new-york/spnnyrkgkber7a0-110-west-124-street-new-york/) ## 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/ Page: https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york/ JSON: https://skypsi.com/property/ny/new-york/sp9jgmdyv509exq-1829-lexington-avenue-new-york.json Content license: https://skypsi.com/content-license.txt