What the listing does not show
501 West 123rd Street #10G
in 501 West 123rd StreetManhattan, NY 10027Co-opHigh risk
Listed at $725,000. The listing does not mention what city records show: 3 open housing violations, 1 of them immediately hazardous. A buyer can put that on the table before contract. A seller should expect the question.
- Asking
- $725,000
- Beds
- 2 beds
- Baths
- 1 bath
- Building
- Co-op
- Built
- 1956
- Open housing violations
- 3
- Immediately hazardous
- 1
- Open building violations
- 7
- Unresolved penalties
- 8
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 Class C (immediately hazardous) housing violation a buyer can raise, and a seller should be ready to explain.
- 027 open Buildings Department violations, which can slow a closing.
- 038 unresolved penalties (6 hazardous) that can follow the property into the sale.
- 0434 co-op share transfers in the last 12 months. Co-op sales are not recorded as deeds, so they show up only here.
02 / Building
The building
City records for 501 West 123rd Street, the building this listing is in. Department of Finance class D4: Elevator apartments.
- Type
- Co-op
- Year built
- 1956
- Floors
- 21
- Units
- 994982 residential
- Building area
- 1,288,976 ft²
- Residential / commercial
- 1,109,765 / 179,211 ft²
- Lot
- 375,650 ft²776.93 × 503.67 ft
- Assessed value
- $73,171,800Tax assessment, not market value
- Assessed land
- $4,635,000
- Tax exemption
- $1,950,797
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)
3
open violations
1 immediately hazardous, 0 hazardous, 2 non-hazardous, 0 informational.
Registration recently lapsed, ended Sep 1, 2026. Owner state NY.
Buildings (DOB)
7
open violations
0 safety-related. Most recent open filing Jan 15, 1991.
Permits, unsafe structures, boilers, elevators, facades.
Penalties (ECB)
8
unresolved
6 hazardous. $146,114 imposed, last issued Nov 18, 2025.
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.
886 recorded documents · 0 sales of $10,000 or more · Last sale none · Last mortgage 2020
Unlock the recorded amounts for 501 West 123rd Street #10G
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 501 West 123rd Street #10G 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
06 / FAQ
Questions
How many open violations does 501 West 123rd Street #10G have?
As of Oct 14, 2026, the building at 501 West 123rd Street has 3 open HPD violations (1 Class C, 0 Class B, 2 Class A, 0 Class I), 7 open DOB violations, 8 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 501 West 123rd Street?
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 14, 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.