Alteration filingSep 30
DOB filing M01311273-I1
Alteration filing at 550 West 20 Street
Approved$20,000 recorded cost
Open filing Building record · BIN 1012284
550 West 20 Street
550 West 20 Street, Manhattan, NY 10011
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 9 independently sourced records, including 9 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 1012284
550 West 20 Street
Chelsea-Hudson Yards, Manhattan
A consolidated public-record view · updated Sep 30, 2026
- DOB filings
- 9
- Active-status
- 9
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings9
Open or active-status records9
First included filingApr 8, 2026
Latest recorded changeSep 30, 2026
The lot
What is already here?
The lot holds a 8-story government property built in 1931, on a 15,800 sq ft lot.
- Floors 2–8Nothing on record
- Floor 1Street levelStreet level. The lot is recorded as public facilities and institutions.
- Street levelPublic facilities and institutions
- Above the southern skylineFrom about floor 26 — the tallest thing within 60 m to the south is 75.6 m
- Built
- 1931
- Last altered
- 1988
- Floors
- 8
- Residential units
- 0
- Building type
- Government property
- Land use
- Public facilities and institutions
- Zoning district
- C6-3
- Lot area
- 15,800 sq ft
- Building area
- 95,837 sq ft
The apartments
202 condominium apartments are assessed on this block, and the typical one is 1,950 sq ft (181 m²). They run from 40 to 709 m².
The city values the typical one at $830,227. That is the Department of Finance’s market valuation for tax, not an asking price and not a sale.
What it sold for
10 apartments on this tax block changed hands in the year the city last published, at a median of $3,700,000, from 860,000 to 21,000,000.
Recorded sale prices from the Department of Finance’s rolling file, covering the year to Aug 31, 2026. Transfers under $10,000 are left out: New York records deed transfers between relatives at a dollar, and those are not sales. No apartment number and no name is carried from either side.
Owner of record
161 TENTH AVENUE PROPERTIES, LLC
As the assessment roll records it. Only owners that read as a company are shown here; where the roll names an individual, nothing is published.
Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Oct 1, 2026. They describe the tax lot, not any single filing. When the rest of New York went up
Violation record
Are there open violations here?
The Department of Buildings has 7 open notices on record for this building, out of 8 notices on file; the most recent was issued Sep 11, 2024.
- Construction
Issued Sep 11, 2024 — FAILURE TO MAINTAIN EXTERIOR BUILDING SEALANT & APPURTENANCES. NOTES: OBSERVED DAMAGE SEALANT JOINTS AT COPING STONE; LOOSE METAL COPING & PARAPET LEVEL & DAMAGE WINDOW FRAME/DECORATIE STONE AROUND WINDOWS AT SEVERAL LOCATIONS ON EXP#1 (N.ELEV).ALSO OBSERVED @ EXP#4 (W. ELEV) SPALLED BRICK;DAMAGE MORTAR JOINTS @ PARAPET.REMEDY:FIX AND/OR REPLACE
- Construction
Issued Apr 8, 2024 — FAILURE TO MAINTAIN EXTERIOR BLDG WALLS & APPURTENANCES.AT THE TIME OF INSPECTION ON EXP#1 N. ELEV: DAMAGE,OPEN MORTAR/SELANT JOINTS AT COPING STONES; LOOSE METAL COPPING AT PARAPET.DAMAGED WINDOW FRAMES AT LOCATION #3 DAMAGED DETERIORATED MORTAR JOINTS. CRACKS IN TERRACOTTA REMEDY: MAINTAIN EXTERIOR WALLS AND REPAID DAMAGED FACADE
- Construction
Issued Feb 6, 2023 — FAILURE TO MAINTAIN EXTERIOR BUILDING WALLS AND APPURTENANCES:AS NOTED @TIME OF INSPECTION OBSERVE ON EXP.#1 NORTH ELEV.:DAMAGED,OPEN MORTAR/ SEALENT JOINTS@COPING STONE.EXP3 DAMAGED DETERIORATED MORTAR JOINT@ PARAPET SO.ELEV.EXP.@CRACKS IN TERRACOTTA DAMAGED MORTAR JOINT@PARAPET MAINT.EXTERIOR BLDG WALLS&APPURT.PROV.SAFETY MEASURES PER 1RCNY 103-04
4 further open notices are on file. Open the source dataset for the full list.
Open means the agency has not recorded a resolution, which is not the same as the problem still existing. What a violation is, and what it is not. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Oct 1, 2026.
What is recorded here
Multiple filings, one stable building identifier.
New York City's Building Identification Number helps connect filings that may use different application numbers or describe different scopes of work. The records below are grouped because they publish BIN 1012284. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 9 alteration filing. Its latest status categories are 8 approved, 1 under review. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Apr 8, 2026
- Latest recorded change
- Sep 30, 2026
- Highest proposed story count
- 16 stories
- Highest proposed unit count
- 131 dwelling units
Highest recorded values may come from different filings and must not be combined into one proposed project. Open the individual filings below for their exact scope. Values outside the publication's conservative data-quality bounds are withheld pending source review.
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Recorded history
What has happened at this address?
Every dated event the city has published for this building, from all 9 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Installation and use of mechanical demo equipment as per plans. Filing M01311273-I1.
- Alteration filed02
Heavy duty sidewalk shed during building alteration, filed sep. sidewalk shed shall complywith ch #33 of the NYC bc. dot permits by others for shed installed on roadway. no change in use, occupancy or egress under this application. Filing M01406614-S1.
- Alteration filed03
Construction fence as per drawings. construction fence shall comply with ch #33 of the NYC bc. no change in use, occupancy or egress under this application. dot permits by others for fence installed on sidewalk/roadway. Filing M01406614-I1.
- Permit recorded for alteration04
DOB lists a first permit date for M01406614-S1. That is not by itself confirmation of activity on site.
- Permit recorded for alteration05
DOB lists a first permit date for M01406614-I1. That is not by itself confirmation of activity on site.
- Alteration approved06
Filing M01311273-I1 reached an approved status.
- Alteration filed07
Filing herewith conversion of the existing wet system to a dry temporary standpipe system for the duration of phase "1". phase "2": standpipe to be extended/new installation after new building core has been installed. Filing M01435156-I1.
- Alteration filed08
Filing herewith removal of all existing gas piping as per plans. Filing M01435148-I1.
- Alteration filed09
Construction fence as per drawings. construction fence shall comply with ch #33 of the NYC bc. no change in use, occupancy or egress under this application. dot permits by others for fence installed on sidewalk/roadway. Filing M01406614-P2.
- Alteration now under review010
The latest status recorded for M01406614-P2 is “Prof Cert QA Review.”
- Alteration now approved011
The latest status recorded for M01406614-I1 is “Permit Entire.”
- Alteration approved012
Filing M01435148-I1 reached an approved status.
- Permit recorded for alteration013
DOB lists a first permit date for M01435148-I1. That is not by itself confirmation of activity on site.
- Alteration now approved014
The latest status recorded for M01435148-I1 is “Permit Entire.”
- Alteration filed015
Equipment use: dual 6548 # capacity personnel hoists during bldg alteration, filed sep. hoists shall comply with ch #33 of the NYC bc. no change in use, occupancy or egress under this application. elevator application submitted separately. Filing M01406614-S3.
- Alteration filed016
Heavy duty sidewalk shed during building alteration, filed sep. sidewalk shed shall complywith ch #33 of the NYC bc. dot permits by others for shed installed on roadway. no change in use, occupancy or egress under this application. Filing M01406614-P3.
- Permit recorded for alteration017
DOB lists a first permit date for M01406614-S3. That is not by itself confirmation of activity on site.
- Alteration now approved018
The latest status recorded for M01406614-S3 is “Permit Entire.”
- Alteration filed019
Hereby filing for the installation of a pipe scaffold as shown on drawings. no change in use, egress or occupancy. Filing M01455319-I1.
- Alteration approved020
Filing M01455319-I1 reached an approved status.
- Alteration now approved021
The latest status recorded for M01455319-I1 is “Approved.”
- Alteration approved022
Filing M01435156-I1 reached an approved status.
- Alteration approved023
Filing M01406614-P3 reached an approved status.
- Alteration now approved024
The latest status recorded for M01406614-P3 is “Approved.”
- Alteration now approved025
The latest status recorded for M01406614-S1 is “Permit Entire.”
- Permit recorded for alteration026
DOB lists a first permit date for M01435156-I1. That is not by itself confirmation of activity on site.
- Alteration now approved027
The latest status recorded for M01435156-I1 is “Permit Entire.”
- Permit recorded for alteration028
DOB lists a first permit date for M01311273-I1. That is not by itself confirmation of activity on site.
- Alteration now approved029
The latest status recorded for M01311273-I1 is “Permit Entire.”