# 6 West 20th Street, Manhattan

Mixed use · 9 units · built c. 1907 · Block 821, Lot 49.

On Umarelli: https://umarelli.org/nyc/1008210049/6-west-20-street

More construction in Flatiron: https://umarelli.org/nyc/manhattan/flatiron.md

Every lot on block 821: https://umarelli.org/nyc/manhattan/821.md

## Building permits

- Alteration, filed Jun 17, 2024, estimated cost $288K, described as “Interior build-out of apartment #3. Work to include non-structural demolition, general construction, and finishes, as per plans filed herewith.”
- Alteration, filed Mar 27, 2024, estimated cost $850K, described as “Demolition of existing water tank bulkhead and stuructural supports, installation of new roofmembrane, replacement of doors and sills, replacement of copings, installation of new guard rails, replacement of skylight.”
- Alteration, filed Dec 13, 2023, described as “Renewal of SR22/1292”
- Alteration, filed Sep 28, 2022, estimated cost $5K, described as “Installation of 300 psf sidewalk shed as per plans. Sidewalk shed shall comply with chapter #33 of the 2014 code. No change in use, egress or occupancy under this application.”
- Alteration, filed Sep 13, 2022, estimated cost $450K, described as “Filing for general construction in conjunction with Alt 1 #121958006. Change of use is under Alt 1 application.”
- Alteration, filed Sep 8, 2022, estimated cost $92K, described as “Installation of new plumbing fixtures as per plans. No change in use, egress or occupancy.”
- Alteration, filed Sep 8, 2022, estimated cost $28K, described as “Modification of sprinkler system as per plans. No change in use, egress or occupancy.”
- Alteration, filed Sep 8, 2022, estimated cost $91K, described as “Modification of mechanical ductwork, installation of exhausts, split system heat pump and make up air units as per plans. No change in use, egress or occupancy.”
- Alteration, filed Aug 15, 2022, estimated cost $564K, described as “Application filed to combine two apartments. Work to include interior demo & installation of partitions, doors and finishes, to replacement of two skylights, new convenience stair as per plans. No change in use, egress or occupancy.”
- Alteration, filed Mar 22, 2022, estimated cost $167K, described as “Masonry repair and localized terracotta patching as per plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Jul 27, 2020, estimated cost $135K, described as “Filed for compliance with ll-26 of 2004 and related sprinkler work at all floors, and installation of test flow assemblies at all sprinkler floor control valves. There shall be no change in use, egress or occupancy filed under this…”

## Property taxes

- Assessment: $4,568,850
- 2026–27 tax: $473,945
- Market value (city estimate): $10,153,000
- Taxable value: $4,368,960
- Assessed land: $450,000
- Assessed improvements: $4,118,850

## Zoning

C6-4A: floor area ratio 9.87 built, 10.00 allowed by base zoning.

## Recent sales

- Nov 30, 2023: $4,950,000
- Jul 11, 2023: $5,450,000
- Apr 7, 2022: $5,950,000
- Mar 4, 2022: $8,350,000
- Feb 10, 2022: $7,700,000
- Oct 20, 2021: $3,232,742
- Jun 16, 2021: $4,998,000
- Apr 9, 2021: $1,950,000

Open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

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

## Landmarks

Part of Ladies' Mile Historic District (Historic District). 47 Landmarks Preservation Commission permits are on file.

## Board and land use applications

- Flatiron BID Expansion (City Planning 2021M0260): Business improvement district, Completed, filed Nov 30, 2020, decided May 19, 2021. An application from the Small Business Services (SBS) on behalf of the Flatiron Business Improvement District (BID) to modify the existing plan and expand the BID in Community Districts 4 and 5 of Manhattan.

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