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Building record · BIN 1089972

401 9 Avenue

401 9 Avenue, Manhattan, NY 10001

A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 7 independently sourced records, including 7 that are not recorded as completed, closed or withdrawn.

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BUILDING RECORD · BIN 1089972

401 9 Avenue

Chelsea-Hudson Yards, Manhattan

A consolidated public-record view · updated Oct 1, 2026

DOB filings
7
Active-status
7
Recorded addresses
3
Building data portrait

A building-level summary of matched filings, active-status records and published identifiers.

Matched filings7
Open or active-status records7
First included filingJul 14, 2026
Latest recorded changeOct 1, 2026

The lot

What is already here?

The lot holds a 69-story condominium built in 2015, on a 65,034 sq ft lot.

  1. Floors 2–69Nothing on record
  2. 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 92 — the tallest thing within 60 m to the south is 274.9 m
Drawn from the outline and roof height the Department of City Planning publishes for this building: 304.2 m over 69 floors, as the city counts them. 1 run of floors has something on record. The city publishes a roof height and a storey count for the lot, and nothing at all about any individual floor. What stands to the south is measured from the city’s own footprints and roof heights; it is a statement about the skyline, not a calculation of sunlight.
Built
2015
Floors
69
Residential units
0
Building type
Condominium
Land use
Commercial and office
Zoning district
C6-4
Lot area
65,034 sq ft
Building area
1,976,539 sq ft

Owner of record

450 PARTNERS

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 4, 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. 58 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 24, 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 1089972. They should not be read as a single construction project unless the underlying filings say so.

The matched set includes 7 alteration filing. Its latest status categories are 7 approved. Each filing page preserves its own status, dates, scope and source identifier.

First included filing
Jul 14, 2026
Latest recorded change
Oct 1, 2026
Highest proposed story count
69 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.

Address alerts

Watch this address.

Get an email when NewYorkDaily detects a material change in the public DOB records associated with 401 9 Avenue.

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Recorded history

What has happened at this address?

Every dated event the city has published for this building, from all 7 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.

  1. Alteration filed

    Modification of sprinkler system as shown on plans. Filing M01417537-S1.

    01
  2. Alteration approved

    Filing M01417537-S1 reached an approved status.

    02
  3. Alteration filed

    Mechanical work as shown on plans filed herewith. Filing M01427490-S1.

    03
  4. Alteration filed

    Sprinkler work as shown on plans filed herewith. Filing M01427490-S3.

    04
  5. Alteration approved

    Filing M01427490-S3 reached an approved status.

    05
  6. Alteration approved

    Filing M01427490-S1 reached an approved status.

    06
  7. Permit recorded for alteration

    DOB lists a first permit date for M01417537-S1. That is not by itself confirmation of activity on site.

    07
  8. Alteration now approved

    The latest status recorded for M01417537-S1 is “Permit Entire.”

    08
  9. Permit recorded for alteration

    DOB lists a first permit date for M01427490-S1. That is not by itself confirmation of activity on site.

    09
  10. Alteration now approved

    The latest status recorded for M01427490-S1 is “Permit Entire.”

    010
  11. Alteration filed

    Interior renovations has shown on plans filed herewith. Filing M01451184-I1.

    011
  12. Alteration approved

    Filing M01451184-I1 reached an approved status.

    012
  13. Alteration filed

    Sprinkler work as shown on plans. Filing M01451184-S3.

    013
  14. Alteration filed

    Mechanical work as shown on plans. Filing M01451184-S1.

    014
  15. Alteration approved

    Filing M01451184-S1 reached an approved status.

    015
  16. Alteration filed

    Plumbing work as shown on plans. Filing M01451184-S2.

    016
  17. Alteration approved

    Filing M01451184-S2 reached an approved status.

    017
  18. Permit recorded for alteration

    DOB lists a first permit date for M01451184-I1. That is not by itself confirmation of activity on site.

    018
  19. Alteration now approved

    The latest status recorded for M01451184-I1 is “Permit Entire.”

    019
  20. Permit recorded for alteration

    DOB lists a first permit date for M01451184-S2. That is not by itself confirmation of activity on site.

    020
  21. Alteration now approved

    The latest status recorded for M01451184-S2 is “Permit Entire.”

    021
  22. Alteration approved

    Filing M01451184-S3 reached an approved status.

    022
  23. Permit recorded for alteration

    DOB lists a first permit date for M01451184-S1. That is not by itself confirmation of activity on site.

    023
  24. Alteration now approved

    The latest status recorded for M01451184-S1 is “Permit Entire.”

    024
  25. Permit recorded for alteration

    DOB lists a first permit date for M01427490-S3. That is not by itself confirmation of activity on site.

    025
  26. Alteration now approved

    The latest status recorded for M01427490-S3 is “Permit Entire.”

    026
  27. Permit recorded for alteration

    DOB lists a first permit date for M01451184-S3. That is not by itself confirmation of activity on site.

    027
  28. Alteration now approved

    The latest status recorded for M01451184-S3 is “Permit Entire.”

    028

Matched DOB filings

All included filings for this building.

Each card opens a distinct official-source filing. Statuses reflect the current Street Futures snapshot, accessed Oct 12, 2026; this list should not be treated as a complete title or permit search.

Keep reading

Where this building sits.

Neighborhoods

Chelsea-Hudson Yards

Streets

West 33 StreetNinth Avenue

Postal codes

10001

Applicants of record

Ama Consulting Engineers PCJbbCapron Design LLCCustodio Consulting, LLC