What the listing does not show
635 Park Avenue MAISONETTE
in 635 Park AvenueManhattan, NY 10065Co-opLow risk
Listed at $1,650,000. The listing does not mention what city records show: 1 open housing violation and 0 open penalties.
- Asking
- $1,650,000
- Beds
- 2 beds
- Baths
- 3 baths
- Building
- Co-op
- Built
- 1913
- Open housing violations
- 1
- Immediately hazardous
- 0
- Open building violations
- 1
- Unresolved penalties
- 0
01 / Findings
What to ask about
City records a buyer can raise and a seller should be ready to explain. A reading of open filings, not a forecast.
- 011 open housing violation, none of them immediately hazardous.
- 021 open Buildings Department violation, which can slow a closing.
- 03Checked: no unresolved penalties on file.
- 04In the Upper East Side Historic District, so exterior changes are restricted.
02 / Building
The building
City records for 635 Park Avenue, the building this listing is in. Department of Finance class D4: Elevator apartments.
- Type
- Co-op
- Year built
- 1913Alterations: 2019
- Floors
- 13
- Units
- 1616 residential
- Building area
- 67,600 ft²
- Residential / commercial
- 67,600 / 0 ft²
- Lot
- 6,034 ft²75.42 × 80 ft
- Assessed value
- $9,554,400Tax assessment, not market value
- Assessed land
- $1,138,500
- Tax exemption
- None
04 / Checked
What was checked
A zero means the file exists and is clear. A dash means the city has no file for this address, which is not the same thing.
Housing (HPD)
1
open violations
0 immediately hazardous, 1 hazardous, 0 non-hazardous, 0 informational.
Registration recently lapsed, ended Sep 1, 2026. Owner state NY.
Buildings (DOB)
1
open violations
1 safety-related. Most recent open filing Oct 19, 2022.
Permits, unsafe structures, boilers, elevators, facades.
Penalties (ECB)
0
unresolved
No unresolved penalties on file.
05 / Full report
Not on the listing
How many documents and sales the city has on file for this building.
32 recorded documents · 0 sales of $10,000 or more · Last sale none · Last mortgage none
06 / FAQ
Questions
How many open violations does 635 Park Avenue MAISONETTE have?
As of Oct 6, 2026, the building at 635 Park Avenue has 1 open HPD violations (0 Class C, 1 Class B, 0 Class A, 0 Class I), 1 open DOB violations, 0 unresolved ECB penalties. These are building records, so they apply to this listing.
Is this property in a flood zone?
No. The lot is not inside a FEMA 100-year flood zone on the 2007 or 2015 maps.
Where does this data come from?
Records are combined from NYC DCP PLUTO (tax lot, zoning, FAR); NYC HPD (housing violations and registrations); NYC DOB and ECB (building violations and penalties); NYC ACRIS (recorded deeds, mortgages and satisfactions); Active for-sale listings. PLUTO version 26v2.
Sources
NYC DCP PLUTO (tax lot, zoning, FAR) · NYC HPD (housing violations and registrations) · NYC DOB and ECB (building violations and penalties) · NYC ACRIS (recorded deeds, mortgages and satisfactions) · Active for-sale listings
PLUTO 26v2, refreshed Oct 6, 2026. Written for people buying or selling this property. Not legal, tax, or appraisal advice. Confirm the details with the city before you offer or list.