Alteration filingSep 28
DOB filing M01168254-I1
Alteration filing at 778 Park Avenue
Approved20 proposed stories
Open filing Building record · BIN 1041503
778 Park Avenue
778 Park Avenue, Manhattan, NY 10021
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 The current snapshot links 2 independently sourced records, including 2 that are not recorded as completed, closed or withdrawn.
newyorkdailyStreet Futures
BUILDING RECORD · BIN 1041503
778 Park Avenue
Upper East Side-Carnegie Hill, Manhattan
A consolidated public-record view · updated Sep 28, 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 filingMar 20, 2025
Latest recorded changeSep 28, 2026
The lot
What is already here?
The lot holds a 20-story elevator apartment building built in 1931, with 18 homes, on a 8,939 sq ft lot.
- Floors 2–20Homes18 homes are recorded on this lot — about one home to a floor, and the apartments assessed on this block run to a typical 1,285 sq ft (119 m²). 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
- Homes18 recorded · typically 119 m² · valued $434,831
- Above the southern skylineFrom about floor 30 — the tallest thing within 60 m to the south is 87.7 m
- Built
- 1931
- Last altered
- 2009
- Floors
- 20
- Residential units
- 18
- Building type
- Elevator apartment building
- Land use
- Elevator apartments
- Zoning district
- R10
- Lot area
- 8,939 sq ft
- Building area
- 120,073 sq ft
- Historic district
- Upper East Side Historic District
The apartments
216 condominium apartments are assessed on this block, and the typical one is 1,285 sq ft (119 m²). They run from 10 to 281 m².
The city values the typical one at $434,831. That is the Department of Finance’s market valuation for tax, not an asking price and not a sale.
What it sold for
14 apartments on this tax block changed hands in the year the city last published, at a median of $4,000,000, from 1,100,000 to 6,400,000.
The property itself last changed hands for $21,250,000 on May 19, 2026.
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
11 EAST 73RD ST 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 1, 2026. They describe the tax lot, not any single filing. When the rest of New York went up
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 1041503. 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
- Mar 20, 2025
- Latest recorded change
- Sep 28, 2026
- Highest proposed story count
- 20 stories
- Highest proposed unit count
- 18 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
Renovation of an existing apartment of the 9th Floor. Work to include non-structural demolition and general construction as per plans filed herewith. No change to use, egress or occupancy. Filing M01168254-I1.
- Alteration filed02
New steel lintels for the enlarged window openings. Filing M01168254-S3.
- Alteration approved03
Filing M01168254-I1 reached an approved status.
- Alteration approved04
Filing M01168254-S3 reached an approved status.
- Permit recorded for alteration05
DOB lists a first permit date for M01168254-I1. That is not by itself confirmation of activity on site.
- Permit recorded for alteration06
DOB lists a first permit date for M01168254-S3. That is not by itself confirmation of activity on site.
- Alteration now approved07
The latest status recorded for M01168254-I1 is “Permit Entire.”
- Alteration now approved08
The latest status recorded for M01168254-S3 is “Permit Entire.”