Alteration filingNov 5
DOB filing M01370239-P1
Alteration filing at 521 Park Avenue
Approved13 proposed stories
Open filing Building record · BIN 1041910
521 Park Avenue
521 Park Avenue, Manhattan, NY 10065
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 5 independently sourced records, including 5 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 1041910
521 Park Avenue
Upper East Side-Carnegie Hill, Manhattan
A consolidated public-record view · updated Nov 5, 2026
- DOB filings
- 5
- Active-status
- 5
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings5
Open or active-status records5
First included filingDec 2, 2025
Latest recorded changeNov 5, 2026
The lot
What is already here?
The lot holds a 12-story condominium built in 1912, with 24 homes, on a 6,025 sq ft lot.
- Floors 2–12Homes24 homes are recorded on this lot — about 2 homes to a floor, and the apartments assessed on this block run to a typical 1,527 sq ft (142 m²). The city does not publish which floor any of them is on.
- Floor 1Street levelStreet level. The lot is recorded as mixed residential and commercial, so this floor is where the commercial space is.
- Street levelMixed residential and commercial
- Homes24 recorded · typically 142 m² · valued $520,769
- Above the southern skylineFrom about floor 54 — the tallest thing within 60 m to the south is 161.5 m
- Built
- 1912
- Floors
- 12
- Residential units
- 24
- Building type
- Condominium
- Land use
- Mixed residential and commercial
- Zoning district
- R10
- Lot area
- 6,025 sq ft
- Building area
- 49,749 sq ft
The apartments
144 condominium apartments are assessed on this block, and the typical one is 1,527 sq ft (142 m²). They run from 75 to 507 m².
The city values the typical one at $520,769. That is the Department of Finance’s market valuation for tax, not an asking price and not a sale.
What it sold for
27 apartments on this tax block changed hands in the year the city last published, at a median of $1,700,000, from 430,000 to 4,497,600.
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
PARKVIEW TOWER OWNER 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 Nov 7, 2026. They describe the tax lot, not any single filing. When the rest of New York went up
On the market here
2 homes at this address are currently listed for sale by Coldwell Banker and Douglas Elliman. Prices move; the brokerage’s own page is the one that is current, and every row here links to it.
| Unit | Rooms | Size | Price | Per sq ft | Listed by |
|---|---|---|---|---|---|
| Unit 3CFor sale | Price not read | Coldwell Banker | |||
| Unit 3CFor sale | Price not read | Douglas Elliman |
Read from the brokerages’ own published listings on November 6, 2026. A home drops off this table the next time they publish a list without it — usually because it sold or let, though a listing can also expire or be withdrawn. What we know is that it is no longer offered, which is why this shows what they have today rather than what we were told once. Everything on the market across the city.
Violation record
Are there open violations here?
The Department of Buildings has 2 open notices on record for this building, out of 23 notices on file; the most recent was issued Dec 28, 2021.
- Elevator
Issued Dec 28, 2021
- Elevator
Issued Dec 28, 2021
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 Nov 7, 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 1041910. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 5 alteration filing. Its latest status categories are 5 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Dec 2, 2025
- Latest recorded change
- Nov 5, 2026
- Highest proposed story count
- 13 stories
- Highest proposed unit count
- 28 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 5 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Alteration is being filed for the plumbing work at the subject premises as per plans submitted herewith. No change in use, egress or occupancy. Filing M01252561-I1.
- Alteration approved02
Filing M01252561-I1 reached an approved status.
- Permit recorded for alteration03
DOB lists a first permit date for M01252561-I1. That is not by itself confirmation of activity on site.
- Alteration filed04
Combination of apt 11ab under tppn 3/97 filed in conjunction with DOB now pl. no change to use, occupancy or egress. Filing M01370239-I1.
- Alteration filed05
Plumbing work in apt 11b filed in conjunction with DOB now gc . no change to use, occupancy or egress. Filing M01370239-S1.
- Alteration approved06
Filing M01370239-I1 reached an approved status.
- Alteration approved07
Filing M01370239-S1 reached an approved status.
- Permit recorded for alteration08
DOB lists a first permit date for M01370239-I1. That is not by itself confirmation of activity on site.
- Permit recorded for alteration09
DOB lists a first permit date for M01370239-S1. That is not by itself confirmation of activity on site.
- Alteration filed010
Combination of apt 11ab under tppn 3/97 filed in conjunction with DOB now pl. no change to use, occupancy or egress. Filing M01370239-P1.
- Alteration filed011
Plumbing work in apt 11b filed in conjunction with DOB now gc . no change to use, occupancy or egress. Filing M01370239-P2.
- Alteration now approved012
The latest status recorded for M01252561-I1 is “Permit Entire.”
- Alteration approved013
Filing M01370239-P1 reached an approved status.
- Alteration now approved014
The latest status recorded for M01370239-P1 is “Approved.”
- Alteration approved015
Filing M01370239-P2 reached an approved status.
- Alteration now approved016
The latest status recorded for M01370239-P2 is “Approved.”
- Alteration now approved017
The latest status recorded for M01370239-I1 is “Permit Entire.”
- Alteration now approved018
The latest status recorded for M01370239-S1 is “Permit Entire.”