# 450 Washington Street, Manhattan

Condominium · 283 units · built 2007 · Block 224, Lot 7504.

On Umarelli: https://umarelli.org/nyc/1002247504/450-washington-street

More construction in Tribeca: https://umarelli.org/nyc/manhattan/tribeca.md

## Building permits

- Alteration, filed Aug 28, 2026, estimated cost $7K, described as “Filing for new fire pit on existing terrace and new gas line from existing gas supply.”
- Alteration, filed Jun 5, 2026, estimated cost $68K, described as “Interior renovations to the existing Class A apartment 1109. Scope includes removal of bathroom, non-structural demolition of walls, patch and repair work in the area of work, and installation of a closet within the master bedroom.”
- Alteration, filed May 12, 2026, described as “Installation of IRA during facade inspection.”
- Alteration, filed Nov 10, 2025, estimated cost $15K, described as “Installation of new gas-fireplace in the Great Room on PH Unit 610 on the 6th floor and extend the venting to the 7th floor terrace.”
- Alteration, filed Nov 4, 2025, estimated cost $151K, described as “Cosmetic minor renovation to existing roof terrace for the sole use of the tenants of Apt 703, 7th Flr. No change of use, egress or occupancy.”
- Alteration, filed Apr 3, 2025, estimated cost $16K, described as “Application herewith filed to combine Existing Class A apartments # 602 & 603 under TPPN #03/97 on the 6th Floor of an existing Multiple Dwelling building. No change in use, egress or occupancy under this application.”
- Alteration, filed Mar 21, 2025, estimated cost $20K, described as “Minor renovation for apartment #405.no change in use,egress,occupancy and bulk”
- Alteration, filed Feb 14, 2025, estimated cost $87K, described as “Plumbing modifications taking place on 7th floor (Unit 702) as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Feb 14, 2025, estimated cost $124K, described as “Mechanical modifications taking place on 7th floor (Unit 702) as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Feb 11, 2025, estimated cost $40K, described as “Structural modifications taking place on 7th floor (Unit 702) as per plans filed herewith. Structural curb and bracing at operable facade. No change in use, egress or occupancy.”
- Alteration, filed Feb 10, 2025, estimated cost $547K, described as “Architectural modifications taking place on 7th floor (Unit 702) as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Dec 4, 2024, estimated cost $10K, described as “Installation of temporary enclosure 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 Oct 21, 2024, estimated cost $100K, described as “Structural modifications taking place on 7th floor (Unit 702) as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Oct 17, 2024, estimated cost $29K, described as “Mechanical Demolition taking place on 7th floor (Unit 702) as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Oct 11, 2024, estimated cost $68K, described as “At existing apartment 1602&1603, Removal and installation of non load bearing walls, new dropped ceiling and miscellaneous finishes as per plans filed herewith. No change in use, egress or occupancy under this application”
- Alteration, filed Mar 8, 2024, estimated cost $297K, described as “General construction modifications taking place on the 4TH floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Jan 8, 2024, described as “Facade Inspections”
- Alteration, filed Oct 20, 2023, estimated cost $313K, described as “General construction modifications taking place on the 6TH floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Oct 18, 2023, estimated cost $58K, described as “Mechanical modifications on the 6th floor as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Oct 18, 2023, estimated cost $80K, described as “Plumbing modifications taking place on the 6th floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Oct 17, 2023, estimated cost $7K, described as “Sprinkler modification on 6th floor per plans filed herewith”
- Alteration, filed Oct 5, 2023, estimated cost $10K, described as “Interior renovation of existing Apartment 1110 on the 11th floor. General Construction. no change in use, occupancy or egress.”
- Alteration, filed Aug 28, 2023, estimated cost $30K, described as “Removal and installation of non load bearing walls and miscellaneous finishes as per plans filed herewith. No change in use, egress or occupancy under this application”
- Alteration, filed Jul 17, 2023, estimated cost $4K, described as “Installation of temporary betamax hoist as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jul 12, 2023, estimated cost $180K, described as “Modification of 1st floor per plans filed herewith”

45 more, older permits are in this building’s full list on the map: https://umarelli.org/nyc/1002247504/450-washington-street.

## Property taxes

- Assessment: $45,605,318
- 2026–27 tax: $5,110,952
- Market value (city estimate): $101,345,150
- Taxable value: $42,920,762
- Assessed land: $2,488,500
- Assessed improvements: $43,116,818
- Condo units with their own tax lots: 4

## Zoning

C6-3A (part of the lot is C6-2A): floor area ratio 7.64 built, above the 7.52 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Sep 30, 2026: $4,950,000
- Sep 29, 2026: $2,150,000
- Aug 19, 2026: $4,995,000
- Aug 13, 2026: $1,400,000
- Jul 28, 2026: $1,480,000
- Jul 13, 2026: $1,650,000
- Apr 21, 2026: $3,675,000
- Mar 18, 2026: $4,950,000
- Mar 6, 2026: $4,650,000
- Mar 2, 2026: $5,600,000

The 10 most recent of 185 open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

Current FEMA flood map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 10 ft (NGVD29). FEMA’s preliminary map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 12 ft (NAVD88).

## In the news

[YIMBY Scopes Views From 450 Washington Street in Tribeca, Manhattan](https://newyorkyimby.com/2022/10/yimby-scopes-views-from-450-washington-street-in-tribeca-manhattan.html), New York YIMBY, Oct 23, 2022.

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