What the listing does not show
340 Saint Marks Avenue #3F
in 340 Saint Marks AvenueBrooklyn, NY 11238Co-opHigh risk
Listed at $800,000. The listing does not mention what city records show: 184 open housing violations, 29 of them immediately hazardous. A buyer can put that on the table before contract. A seller should expect the question.
- Asking
- $800,000
- Beds
- 2 beds
- Baths
- 1 bath
- Building
- Co-op
- Built
- 1931
- Open housing violations
- 184
- Immediately hazardous
- 29
- Open building violations
- 12
- 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.
- 0129 open Class C (immediately hazardous) housing violations a buyer can raise, and a seller should be ready to explain.
- 0212 open Buildings Department violations, which can slow a closing.
- 03Checked: no unresolved penalties on file.
- 04The required housing registration expired more than a year ago.
02 / Building
The building
City records for 340 Saint Marks Avenue, the building this listing is in. Department of Finance class C6: Walk-up apartments.
- Type
- Co-op
- Year built
- 1931Alterations: 1990
- Floors
- 4
- Units
- 66 residential
- Building area
- 4,504 ft²
- Residential / commercial
- 4,504 / 0 ft²
- Lot
- 2,999 ft²25 × 100 ft
- Assessed value
- $752,850Tax assessment, not market value
- Assessed land
- $7,200
- Tax exemption
- $668,292
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)
184
open violations
29 immediately hazardous, 113 hazardous, 35 non-hazardous, 7 informational.
Registration expired, ended Nov 1, 2020. Owner state NY.
Buildings (DOB)
12
open violations
12 safety-related. Most recent open filing Nov 14, 2025.
Permits, unsafe structures, boilers, elevators, facades.
Penalties (ECB)
0
unresolved
No unresolved penalties on file.
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.
11 recorded documents · 1 sale of $10,000 or more · Last sale 2007 · Last mortgage none
Unlock the recorded amounts for 340 Saint Marks Avenue #3F
After you register, the paid report includes who owns the building, plus the amounts below from the city file.
- Owner details
- Last sale price
Paid report
The rest of 340 Saint Marks Avenue #3F 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
- Last sale price
06 / FAQ
Questions
How many open violations does 340 Saint Marks Avenue #3F have?
As of Oct 6, 2026, the building at 340 Saint Marks Avenue has 184 open HPD violations (29 Class C, 113 Class B, 35 Class A, 7 Class I), 12 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 340 Saint Marks Avenue?
Owner details are in the paid report, available after you register. Last sale price is 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.