What the listing does not show
51 Ainslie Street
Brooklyn, NY 11211Elevator apartment buildingHigh risk
Listed at $23,000,000. The listing does not mention what city records show: 10 open housing violations, 8 of them immediately hazardous. A buyer can put that on the table before contract. A seller should expect the question.
- Asking
- $23,000,000
- Beds
- 46 beds
- Baths
- 45.5 baths
- Size
- 77,664 ft²
- Building
- Elevator apartment building
- Built
- 2009
- Open housing violations
- 10
- Immediately hazardous
- 8
- Open building violations
- 44
- Unresolved penalties
- 4
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.
- 018 open Class C (immediately hazardous) housing violations a buyer can raise, and a seller should be ready to explain.
- 0244 open Buildings Department violations, which can slow a closing.
- 034 unresolved penalties (1 hazardous) that can follow the property into the sale.
- 042 tax lien documents on record.
02 / Building
The building
Department of Finance class D6: Elevator apartments.
- Type
- Elevator apartment building
- Year built
- 2009Alterations: 2008
- Floors
- 10
- Units
- 3029 residential
- Building area
- 77,664 ft²
- Residential / commercial
- 36,112 / 41,552 ft²
- Lot
- 16,952 ft²96.08 × 183.33 ft
- Assessed value
- $9,145,800Tax assessment, not market value
- Assessed land
- $724,500
- Tax exemption
- $7,807,053
03 / Zoning
What the lot allows
Zoned M1-2/R6. Floor area ratio is how much building the lot can legally hold. Listings rarely spell this out.
Unused residential floor area
0ft²
Built at 188% of allowed
The building already exceeds today's allowed residential floor area.
- Commercial FAR allowed
- 2.00
- Community facility FAR
- 4.80
- Affordable housing bonus FAR
- 3.90
- Zoning district
- M1-2/R6
- Special district: MX-8
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)
10
open violations
8 immediately hazardous, 2 hazardous, 0 non-hazardous, 0 informational.
Registration recently lapsed, ended Sep 1, 2026. Owner state NY.
Buildings (DOB)
44
open violations
50 safety-related. Most recent open filing Nov 14, 2025.
Permits, unsafe structures, boilers, elevators, facades.
Penalties (ECB)
4
unresolved
1 hazardous. $96,062 imposed, last issued Apr 8, 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.
37 recorded documents · 0 sales of $10,000 or more · Last sale none · Last mortgage 2023
Unlock the recorded amounts for 51 Ainslie Street
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
- Recorded document amounts
Paid report
The rest of 51 Ainslie Street 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
- Recorded document amounts
06 / FAQ
Questions
How many open violations does 51 Ainslie Street have?
As of Oct 6, 2026, the building at 51 Ainslie Street has 10 open HPD violations (8 Class C, 2 Class B, 0 Class A, 0 Class I), 44 open DOB violations, 4 unresolved ECB penalties. These are building records, so they apply to this listing.
What is the zoning of 51 Ainslie Street?
The lot is zoned M1-2/R6 within MX-8. The building is built at a floor area ratio of 4.58 against 2.43 allowed for residential use, leaving about 0 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.
What amounts are recorded for 51 Ainslie Street?
Owner details are in the paid report, available after you register. Mortgage amount, Unpaid penalty balance, Recorded document amounts 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.