What the listing does not show
9307 3rd Avenue
Brooklyn, NY 11209Mixed-use buildingModerate risk
Listed at $2,899,000. The listing does not mention what city records show: 3 open housing violations and 1 open building violation. Read them before you offer, and be ready to explain them if you are selling.
- Asking
- $2,899,000
- Beds
- 6 beds
- Baths
- 5.5 baths
- Size
- 5,040 ft²
- Building
- Mixed-use building
- Built
- 1926
- Open housing violations
- 3
- 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.
- 013 open housing violations, none of them immediately hazardous.
- 021 open Buildings Department violation, which can slow a closing.
- 03Checked: no unresolved penalties on file.
- 04About 1,080 ft² of unused residential floor area the listing does not mention.
- 05The required housing registration expired more than a year ago.
02 / Building
The building
Department of Finance class S5: Residential with stores.
- Type
- Mixed-use building
- Year built
- 1926
- Floors
- 3
- Units
- 65 residential
- Building area
- 5,040 ft²
- Residential / commercial
- 4,640 / 400 ft²
- Lot
- 2,037 ft²20 × 97.58 ft
- Assessed value
- $371,700Tax assessment, not market value
- Assessed land
- $6,750
- Tax exemption
- None
03 / Zoning
What the lot allows
Zoned R6A. Floor area ratio is how much building the lot can legally hold. Listings rarely spell this out.
Unused residential floor area
1,080ft²
Built at 82% of allowed
Zoning would still allow this much more housing on the lot.
- Commercial FAR allowed
- 0.00
- Community facility FAR
- 3.00
- Affordable housing bonus FAR
- 3.90
- Zoning district
- R6A
- Special district: BR
- Overlay: C1-3
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
0 immediately hazardous, 1 hazardous, 1 non-hazardous, 1 informational.
Registration expired, ended Sep 1, 2025. Owner state NY.
Buildings (DOB)
1
open violations
2 safety-related. Most recent open filing Jun 20, 2023.
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.
4 recorded documents · 0 sales of $10,000 or more · Last sale none · Last mortgage none
06 / FAQ
Questions
How many open violations does 9307 3rd Avenue have?
As of Oct 6, 2026, the building at 9307 3rd Avenue has 3 open HPD violations (0 Class C, 1 Class B, 1 Class A, 1 Class I), 1 open DOB violations, 0 unresolved ECB penalties. These are building records, so they apply to this listing.
What is the zoning of 9307 3rd Avenue?
The lot is zoned R6A within BR. The building is built at a floor area ratio of 2.47 against 3.00 allowed for residential use, leaving about 1,080 ft² of unused residential floor area.
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.