Alteration filingSep 30
DOB filing M00784623-I1
Alteration filing at 520 West 20 Street
Approved7 proposed stories
Open filing Building record · BIN 1012290
520 West 20 Street
520 West 20 Street, Manhattan, NY 10011
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 4 independently sourced records, including 3 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 1012290
520 West 20 Street
Chelsea-Hudson Yards, Manhattan
A consolidated public-record view · updated Sep 30, 2026
- DOB filings
- 4
- Active-status
- 3
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings4
Open or active-status records3
First included filingOct 17, 2022
Latest recorded changeSep 30, 2026
The lot
What is already here?
The lot holds a 7-story office building built in 1914, on a 16,100 sq ft lot.
- Floors 2–7Nothing on record
- Floor 1Street levelStreet level. The lot is recorded as commercial and office, so this floor is where the commercial space is.
- Street levelCommercial and office
- Above the southern skylineFrom about floor 16 — the tallest thing within 60 m to the south is 46.3 m
- Built
- 1914
- Floors
- 7
- Residential units
- 0
- Building type
- Office building
- Land use
- Commercial and office
- Zoning district
- C6-2
- Lot area
- 16,100 sq ft
- Building area
- 84,803 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 3, 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 4 open notices on record for this building, out of 61 notices on file; the most recent was issued Jun 3, 2009.
- Elevator
Issued Jun 3, 2009
- Elevator
Issued Jun 3, 2009
- Elevator
Issued Nov 24, 2004
1 further open notice is 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 2, 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 1012290. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 4 alteration filing. Its latest status categories are 3 approved, 1 recorded as completed. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Oct 17, 2022
- Latest recorded change
- Sep 30, 2026
- Highest proposed story count
- 7 stories
- Highest proposed unit count
- Not stated
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 4 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Filing for the renovation of the 4th, 5th, and 7th Floors. Work includes installation of interior non load bearing partitions, doors, finish work, new convenience stair. No change to use, egress, or occupancy. Filing M00784623-I1.
- Alteration approved02
Filing M00784623-I1 reached an approved status.
- Permit recorded for alteration03
DOB lists a first permit date for M00784623-I1. That is not by itself confirmation of activity on site.
- Alteration filed04
Filing for the renovation of a commercial space at the 6th floor. Work includes removal and installation of interior non load bearing partitions, doors, finish work. Filing M01290441-I1.
- Alteration approved05
Filing M01290441-I1 reached an approved status.
- Alteration filed06
Filing for plumbing work at the 5th floor. No change to use, egress, or occupancy. Filing M01290441-S2.
- Alteration approved07
Filing M01290441-S2 reached an approved status.
- Permit recorded for alteration08
DOB lists a first permit date for M01290441-I1. That is not by itself confirmation of activity on site.
- Permit recorded for alteration09
DOB lists a first permit date for M01290441-S2. That is not by itself confirmation of activity on site.
- Alteration filed010
Filing for the renovation of the 4th, 5th, and 7th Floors. Work includes installation of interior non load bearing partitions, doors, finish work, new convenience stair. No change to use, egress, or occupancy. Filing M00784623-P1.
- Alteration signed off011
DOB recorded a sign-off for M01290441-S2.
- Alteration now completed012
The latest status recorded for M01290441-S2 is “LOC Issued.”
- Alteration now approved013
The latest status recorded for M01290441-I1 is “Permit Entire.”
- Alteration now approved014
The latest status recorded for M00784623-I1 is “Permit Entire.”
- Alteration approved015
Filing M00784623-P1 reached an approved status.
- Alteration now approved016
The latest status recorded for M00784623-P1 is “Approved.”