Alteration filingOct 20
DOB filing M01393553-I1
Alteration filing at 809 Un Plaza
Approved11 proposed stories
Open filing Building record · BIN 1038775
809 Un Plaza
809 Un Plaza, Manhattan, NY 10017
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 4 independently sourced records, including 4 that are not recorded as completed, closed or withdrawn.
newyorkdailyStreet Futures
BUILDING RECORD · BIN 1038775
809 Un Plaza
East Midtown-Turtle Bay, Manhattan
A consolidated public-record view · updated Oct 20, 2026
- DOB filings
- 4
- Active-status
- 4
- Recorded addresses
- 2
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings4
Open or active-status records4
First included filingJan 10, 2025
Latest recorded changeOct 20, 2026
The lot
What is already here?
The lot holds a 11-story condominium built in 1964, on a 9,200 sq ft lot.
- Floors 2–11Nothing 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 52 — the tallest thing within 60 m to the south is 153.9 m
- Built
- 1964
- Floors
- 11
- Residential units
- 0
- Building type
- Condominium
- Land use
- Commercial and office
- Zoning district
- C5-2
- Lot area
- 9,200 sq ft
- Building area
- 102,986 sq ft
The apartments
556 condominium apartments are assessed on this block, and the typical one is 564 sq ft (52 m²). They run from 48 to 130 m².
The city values the typical one at $207,311. That is the Department of Finance’s market valuation for tax, not an asking price and not a sale.
What it sold for
25 apartments on this tax block changed hands in the year the city last published, at a median of $734,000, from 305,000 to 1,160,000.
Recorded sale prices from the Department of Finance’s rolling file, covering the year to Sep 30, 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
TURTLE BAY TOWERS CORP
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 23, 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 49 notices on file; the most recent was issued Jul 26, 2021.
- Elevator
Issued Jul 26, 2021
- Elevator
Issued Jul 26, 2021
- Elevator
Issued Jul 26, 2021
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 22, 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 1038775. 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 4 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Jan 10, 2025
- Latest recorded change
- Oct 20, 2026
- Highest proposed story count
- 13 stories
- Highest proposed unit count
- 8 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.
Address alerts
Watch this address.
Get an email when NewYorkDaily detects a material change in the public DOB records associated with 809 Un Plaza.
Confirmation is required. Alerts describe source-data changes, not confirmed construction activity. Unsubscribe at any time. Privacy
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
Plumbing work proposed for interior office renovation for new tenant. No change to Use, Egress or Occupancy. Filing M01159645-I1.
- Alteration approved02
Filing M01159645-I1 reached an approved status.
- Permit recorded for alteration03
DOB lists a first permit date for M01159645-I1. That is not by itself confirmation of activity on site.
- Alteration filed04
Filed herewith rear facade replacement. No change of use, occupancy or egress under this application. Filing M01180433-I1.
- Alteration approved05
Filing M01180433-I1 reached an approved status.
- Alteration filed06
Filed herewith front facade replacement. No change of use, occupancy or egress under this application. Filing M01213912-I1.
- Alteration approved07
Filing M01213912-I1 reached an approved status.
- Alteration filed08
Proposed installation of heavy duty sidewalk shed for remedial repairs as per plans. no change in use occupancy or egress under this application. live load 300 per square feet. sidewalk shed shall comply with chapter # 33 of the 2022 code. Filing M01393553-I1.
- Permit recorded for alteration09
DOB lists a first permit date for M01393553-I1. That is not by itself confirmation of activity on site.
- Permit recorded for alteration010
DOB lists a first permit date for M01213912-I1. That is not by itself confirmation of activity on site.
- Alteration now approved011
The latest status recorded for M01213912-I1 is “Permit Entire.”
- Alteration now approved012
The latest status recorded for M01159645-I1 is “Permit Entire.”
- Permit recorded for alteration013
DOB lists a first permit date for M01180433-I1. That is not by itself confirmation of activity on site.
- Alteration now approved014
The latest status recorded for M01180433-I1 is “Permit Entire.”
- Alteration now approved015
The latest status recorded for M01393553-I1 is “Permit Entire.”