What the listing does not show
831 Knickerbocker Avenue #PHC
in 831 Knickerbocker AvenueBrooklyn, NY 11237CondominiumLow risk(partial records)
Listed at $998,000. The listing does not mention what city records show: 0 open housing violations and 1 open penalty.
- Asking
- $998,000
- Beds
- 2 beds
- Baths
- 2 baths
- Size
- 932 ft²
- Building
- Condominium
- Built
- 1931
- Housing file
- None
- Open building violations
- 2
- Unresolved penalties
- 1
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.
- 01The Housing department has no file for this address. That is common for condominiums and small buildings, and it does not mean the building is clear.
- 022 open Buildings Department violations, which can slow a closing.
- 031 unresolved penalty (0 hazardous) that can follow the property into the sale.
02 / Building
The building
City records for 831 Knickerbocker Avenue, the building this listing is in. Department of Finance class R0: Condominium.
- Type
- Condominium
- Year built
- 1931
- Floors
- 2
- Building area
- 7,600 ft²
- Lot
- 3,667 ft²36.67 × 100 ft
- Assessed value
- $0Tax assessment, not market value
- Assessed land
- $0
- 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)
—
no file
Housing records are kept for registered apartment buildings. Condominiums and small buildings are often not in them.
Buildings (DOB)
2
open violations
0 safety-related. Most recent open filing Aug 16, 1993.
Permits, unsafe structures, boilers, elevators, facades.
Penalties (ECB)
1
unresolved
0 hazardous. $26,537 imposed, last issued Jul 1, 2025.
05 / Full report
Not on the listing
How many documents and sales the city has on file for this building.
Condominium sales are recorded unit by unit, so deeds and mortgages are not combined for the whole building.
Same building
Other listings at 831 Knickerbocker Avenue
06 / FAQ
Questions
How many open violations does 831 Knickerbocker Avenue #PHC have?
As of Oct 6, 2026, the building at 831 Knickerbocker Avenue has 2 open DOB violations, 1 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.
Does a missing city file mean the building is clear?
No. A missing file means the city has no record matched to this address, not that the building has no problems. Condominiums and small buildings often sit outside the housing registry. Ask the seller or the managing agent directly.
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.