# 870 Riverside Drive, Manhattan

Co-op · 36 units · built c. 1920 · Block 2136, Lot 36.

On Umarelli: https://umarelli.org/nyc/1021360036/870-riverside-drive

More construction in Washington Heights: https://umarelli.org/nyc/manhattan/washington-heights.md

Every lot on block 2136: https://umarelli.org/nyc/manhattan/2136.md

## Building permits

- Alteration, filed Apr 26, 2024, estimated cost $6K, described as “Application filed to renovate apartment 5B to include modification of non bearing partitions and finishes. No change to use, egress or occupancy.”
- Alteration, filed Nov 20, 2023, described as “Renewal of SR23/1742”
- Alteration, filed Aug 8, 2023, estimated cost $31K, described as “Application filed to renovate apartment 5G to include modification of non bearing partitions and finishes. No change to use, egress or occupancy.”
- Alteration, filed Jul 27, 2023, estimated cost $3K, described as “Installation of a temporarily heavy-duty sidewalk per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Apr 5, 2023, estimated cost $406K, described as “Application filed for facade repair as per drawings filed herewith. no change to use, egress or occupancy.”
- Alteration, filed Jun 28, 2018, estimated cost $7K, described as “Construction equipment - sidewalk-shed proposed installation of heavy duty sidewalk shed for remedial repairs as per plans. No change in use occupancy or egress under this application. Live load 300 per square feet. Sidewalk shed shall…”

## Property taxes

- Assessment: $3,001,500
- 2026–27 tax: $90,628
- Market value (city estimate): $6,670,000
- Taxable value: $771,930
- Assessed land: $1,038,150
- Assessed improvements: $1,963,350

## Tax breaks

- Article XI exemption, through Jun 30, 2029, about $214,492 a year below the full tax.
- J-51 abatement, through Mar 31, 2036, a $6,025 credit this tax year.

## Zoning

R8: floor area ratio 2.43 built, 6.02 allowed by base zoning.

## Recent sales

- Oct 28, 2025: $375,000
- Apr 22, 2025: $750,000
- Apr 12, 2024: $735,000
- Jun 29, 2022: $949,000
- Jun 1, 2022: $855,000
- Oct 4, 2018: $625,000
- Aug 28, 2018: $1,195,000
- Aug 1, 2018: $1,025,000
- Feb 7, 2018: $699,000
- Jul 11, 2017: $660,000

The 10 most recent of 17 open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

## Board and land use applications

- 870 RIVERSIDE DRIVE (City Planning P1982M0293): Completed, decided Mar 4, 1982. LDA

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology