Alteration filingSep 18
DOB filing M01452638-S2
Alteration filing at 666 3 Avenue
Approved32 proposed stories
Open filing Building record · BIN 1036161
666 3 Avenue
666 3 Avenue, Manhattan, NY 10017
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 8 independently sourced records, including 8 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 1036161
666 3 Avenue
East Midtown-Turtle Bay, Manhattan
A consolidated public-record view · updated Sep 18, 2026
- DOB filings
- 8
- Active-status
- 8
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings8
Open or active-status records8
First included filingAug 27, 2026
Latest recorded changeSep 18, 2026
The lot
What is already here?
The lot holds a 32-story office building built in 1952, on a 34,771 sq ft lot.
- Floors 2–32Nothing 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 58 — the tallest thing within 60 m to the south is 173.2 m
- Built
- 1952
- Last altered
- 1999
- Floors
- 32
- Residential units
- 0
- Building type
- Office building
- Land use
- Commercial and office
- Zoning district
- C5-3
- Lot area
- 34,771 sq ft
- Building area
- 666,376 sq ft
Owner of record
R&S TRYLONS 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 Sep 20, 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 2 open notices on record for this building, out of 239 notices on file; the most recent was issued Dec 29, 1999.
- Elevator
Issued Dec 29, 1999 — 1P22818
- Local law 10/81 -
Issued Jan 13, 1997
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 20, 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 1036161. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 8 alteration filing. Its latest status categories are 8 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Aug 27, 2026
- Latest recorded change
- Sep 18, 2026
- Highest proposed story count
- 32 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
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Recorded history
What has happened at this address?
Every dated event the city has published for this building, from all 8 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Modification/additions to existing plumbing fixtures and related piping as per plans filed herewith. No change in use, egress or occupancy. Filing M01436180-S3.
- Alteration approved02
Filing M01436180-S3 reached an approved status.
- Alteration filed03
Modification/additions to existing sprinkler system and related piping as per plans filed herewith. No change in use, egress or occupancy under this application. Filing M01436180-S4.
- Alteration approved04
Filing M01436180-S4 reached an approved status.
- Alteration filed05
Modification/additions to existing HVAC ductwork, fan powered boxes, variable air volume terminal units, diffusers registers and grilles, and fans as per plans filed herewith. No change in use, egress or occupancy under this application. Filing M01436180-S2.
- Alteration approved06
Filing M01436180-S2 reached an approved status.
- Alteration filed07
Removal and installation of non-load bearing partitions, doors, frames, flooring, ceiling and related finishes as per plans filed herewith. No change in use, egress or occupancy under this application. Filing M01436180-I1.
- Alteration filed08
Structural modifications associated with steel supports for security doors, security walls and partition walls as per plans filed herewith. No change in use, egress or occupancy under this application. Filing M01436180-S1.
- Alteration approved09
Filing M01436180-S1 reached an approved status.
- Alteration approved010
Filing M01436180-I1 reached an approved status.
- Permit recorded for alteration011
DOB lists a first permit date for M01436180-I1. That is not by itself confirmation of activity on site.
- Alteration now approved012
The latest status recorded for M01436180-I1 is “Permit Entire.”
- Permit recorded for alteration013
DOB lists a first permit date for M01436180-S1. That is not by itself confirmation of activity on site.
- Alteration now approved014
The latest status recorded for M01436180-S1 is “Permit Entire.”
- Permit recorded for alteration015
DOB lists a first permit date for M01436180-S2. That is not by itself confirmation of activity on site.
- Alteration now approved016
The latest status recorded for M01436180-S2 is “Permit Entire.”
- Permit recorded for alteration017
DOB lists a first permit date for M01436180-S4. That is not by itself confirmation of activity on site.
- Alteration now approved018
The latest status recorded for M01436180-S4 is “Permit Entire.”
- Alteration filed019
Modification/additions to existing sprinkler system and related branch piping. No change in use, egress or occupancy under this application. Filing M01452638-S2.
- Alteration filed020
Modification/additions of supply and return air ductwork and diffusers. Install transfer ducts as per plans filed herewith. No change in use, egress or occupancy under this application. Filing M01452638-S1.
- Alteration filed021
Removal and installation of non-load bearing partitions, doors, frames, flooring, ceiling and related finishes. No change in use, egress or occupancy under this application. Filing M01452638-I1.
- Permit recorded for alteration022
DOB lists a first permit date for M01436180-S3. That is not by itself confirmation of activity on site.
- Alteration now approved023
The latest status recorded for M01436180-S3 is “Permit Entire.”
- Alteration approved024
Filing M01452638-S1 reached an approved status.
- Alteration approved025
Filing M01452638-I1 reached an approved status.
- Alteration approved026
Filing M01452638-S2 reached an approved status.
- Alteration now approved027
The latest status recorded for M01452638-S2 is “Approved.”
- Permit recorded for alteration028
DOB lists a first permit date for M01452638-S1. That is not by itself confirmation of activity on site.
- Alteration now approved029
The latest status recorded for M01452638-S1 is “Permit Entire.”
- Permit recorded for alteration030
DOB lists a first permit date for M01452638-I1. That is not by itself confirmation of activity on site.
- Alteration now approved031
The latest status recorded for M01452638-I1 is “Permit Entire.”