What the listing does not show
850 Park Avenue #5A
in 850 Park AvenueManhattan, NY 10075Co-opLow risk
Listed at $4,200,000. The listing does not mention what city records show: 1 open housing violation and 0 open penalties. The mortgage amount and the unpaid penalty balance are in the full report.
- Asking
- $4,200,000
- Beds
- 4 beds
- Baths
- 4 baths
- Building
- Co-op
- Built
- 1914
- Open housing violations
- 1
- Immediately hazardous
- 0
- Open building violations
- 0
- 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.
- 02Checked: no open Buildings Department violations.
- 03Checked: no unresolved penalties on file.
- 04In the Upper East Side Historic District, so exterior changes are restricted.
- 051 co-op share transfers in the last 12 months. Co-op sales are not recorded as deeds, so they show up only here.
- 061 tax lien document on record.
02 / Building
The building
City records for 850 Park Avenue, the building this listing is in. Department of Finance class D4: Elevator apartments.
- Type
- Co-op
- Year built
- 1914Alterations: 1985, 2018
- Floors
- 12
- Units
- 5251 residential
- Building area
- 149,056 ft²
- Residential / commercial
- 147,056 / 2,000 ft²
- Lot
- 15,835 ft²102.17 × 155 ft
- Assessed value
- $21,431,700Tax assessment, not market value
- Assessed land
- $4,905,000
- Tax exemption
- $4,460
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, 0 hazardous, 1 non-hazardous, 0 informational.
Registration recently lapsed, ended Sep 1, 2026. Owner state NY.
Buildings (DOB)
0
open violations
No open building violations on file.
Permits, unsafe structures, boilers, elevators, facades.
Penalties (ECB)
0
unresolved
No unresolved penalties on file.
Unpaid balance
05 / Full report
Not on the listing
Sale prices, mortgage amounts and document amounts the city has on file. The listing does not include them.
67 recorded documents · 0 sales of $10,000 or more · Last sale none · Last mortgage 2025
Unlock the recorded amounts for 850 Park Avenue #5A
After you register, the paid report includes who owns the building, plus the amounts below from the city file.
- Owner details
- Mortgage amount
- Unpaid penalty balance
Paid report
The rest of 850 Park Avenue #5A is not on the listing
After you register, the paid report names the owner. It also includes the city-file amounts the listing leaves out.
- Owner details
- Mortgage amount
- Unpaid penalty balance
Same building
Other listings at 850 Park Avenue
06 / FAQ
Questions
How many open violations does 850 Park Avenue #5A have?
As of Oct 6, 2026, the building at 850 Park Avenue has 1 open HPD violations (0 Class C, 0 Class B, 1 Class A, 0 Class I), 0 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.
What amounts are recorded for 850 Park Avenue?
Owner details are in the paid report, available after you register. Mortgage amount, Unpaid penalty balance are in the city file and included there too.
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.