Alteration filingSep 23
DOB filing M01455324-I1
Alteration filing at 517 West 121 Street
ApprovedDOB filing M01455324-I1
Open filing Building record · BIN 1059654
517 West 121 Street
517 West 121 Street, Manhattan, NY 10027
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 2 independently sourced records, including 2 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 1059654
517 West 121 Street
Morningside Heights, Manhattan
A consolidated public-record view · updated Sep 23, 2026
- DOB filings
- 2
- Active-status
- 2
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings2
Open or active-status records2
First included filingSep 1, 2026
Latest recorded changeSep 23, 2026
The lot
What is already here?
The lot holds a 19-story elevator apartment building built in 2004, with 241 homes, on a 12,000 sq ft lot.
- Floors 13–19Above the southern skylineAbove the tallest building within sixty metres to the south, which stands 38.2 m. Nothing on that side reaches this floor.
- Floors 2–12Homes241 homes are recorded on this lot — about 13 homes to a floor. The city does not publish which floor any of them is on.
- Floor 1Street levelStreet level. The lot is recorded as elevator apartments.
- Street levelElevator apartments
- Homes241 recorded on the lot
- Above the southern skylineFrom about floor 13 — the tallest thing within 60 m to the south is 38.2 m
- Built
- 2004
- Floors
- 19
- Residential units
- 241
- Building type
- Elevator apartment building
- Land use
- Elevator apartments
- Zoning district
- R8
- Lot area
- 12,000 sq ft
- Building area
- 112,000 sq ft
Owner of record
TRUSTEES OF COLUMBIA UNIVERSITY
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 Sep 25, 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?
No open violations are recorded for this building. 31 notices are on file, all with a recorded resolution.
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 Sep 25, 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 1059654. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 2 alteration filing. Its latest status categories are 2 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Sep 1, 2026
- Latest recorded change
- Sep 23, 2026
- Highest proposed story count
- 18 stories
- Highest proposed unit count
- 241 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 2 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Installation of heavy duty sidewalk shed. no change in use, occupancy or egress. all work to comply with chapter 33 of nycbc. Filing M01423179-S1.
- Permit recorded for alteration02
DOB lists a first permit date for M01423179-S1. That is not by itself confirmation of activity on site.
- Alteration now approved03
The latest status recorded for M01423179-S1 is “Permit Entire.”
- Alteration filed04
Outriggers system installation for facade repairs, no change in use, egress, or occupancy. Filing M01455324-I1.
- Permit recorded for alteration05
DOB lists a first permit date for M01455324-I1. That is not by itself confirmation of activity on site.
- Alteration now approved06
The latest status recorded for M01455324-I1 is “Permit Entire.”