307 12 Street
Brooklyn · 11215 · BBL 3010230069 · look up another building
A company took title here in March 31, 2026, for a stated $3.1M.
Most recent filing on this building: a violation, October 1, 2026
307 12 Street is a multi-family walk-up in Park Slope, Brooklyn, ZIP 11215. City records date it to 1912 and count 25 apartments. The city's property file lists the owner of record as FLGSP 307 12 ST LLC. Its total assessed value is $1.2M, for the 2026 tax year.
DHCR registration lists 21 rent-stabilized units here in 2023, but that is the building and not your apartment. The state will send you your own rent history free, and it is the only binding answer on what you should be paying.
Who owns 307 12 Street
The most recent recorded deed is dated Mar 31, 2026, transferring the lot to FLGSP 307 12 ST LLC for a stated $3.1M. PulseCities holds 1 recorded deed for this lot. Deeds recorded through September 29, 2026, the most recent day the city has published.
A deed names a party of record. Stated consideration of $0 usually marks a transfer between related parties rather than a sale.
The November 1 report on this block
On the first of every month we email one page about tax block 1023 in Brooklyn, the block 307 12 Street is on. It lists what was filed there that month, then where the block stands. As of today, that part reads:
- 7 buildings changed hands in the last twelve months.
- The block holds 67 parcels and 214 residential units.
Anything filed on 307 12 Street itself comes the next morning.
Sales and ownership history at 307 12 Street
| Party recorded | Recorded | Amount |
|---|---|---|
| FLGSP 307 12 St LLCDEED from 307 12 ST LLC | Mar 31, 2026 | $3.1M |
Deeds and assignments recorded in ACRIS, one row per document. Amount is the stated consideration; $0 often marks a non-arms-length transfer. An assignment moves a lender's paper and is not a sale. Source: NYC ACRIS, current through September 29, 2026.
Taxes and assessed value for 307 12 Street
The city's Department of Finance assessed this lot at $1.2M for the 2026 tax year. That works out to $50K per residential unit. Assessed value is what the city taxes, not what the building would sell for, and the two routinely differ by a wide margin. The bill itself turns on the tax class rate and on any exemptions or abatements attached to the lot, neither of which is published here.
No executed evictions at 307 12 Street
No executed eviction is on record at 307 12 Street in the citywide marshal file, which runs from April 2024.
Rent stabilization at 307 12 Street
DHCR registration records list 21 rent-stabilized units at this building in 2023, the most recent year PulseCities holds. That is up from 20 units in 2018. Registration is building-level and does not settle the status of any single apartment; the rent history does. Checking your own apartment starts with the free rent history from the state. That is the only binding answer, and it takes time to come back. While you wait, you can get an email when the record here moves: a deed, an eviction, a permit or a violation filed on this building. How to check rent-stabilized status →
Open code violations at 307 12 Street
HPD and DOB inspectors have written 313 violations against this building, of which 263 remain unresolved. That is more than 10 in 10 buildings its size in 11215. The most serious open grade here is immediately hazardous, with 49 open violations.
If you own or manage this building, violationscout.com shows what it takes to clear these, from the date each one has to be certified by to how a correction gets filed. It is a paid site, built by the same person as this one.
Classes run A (non-hazardous) to C (immediately hazardous); DOB class I carries a vacate order. Source: NYC HPD violations, current through October 10, 2026.
Violation history at 307 12 Street
| Violation | Issued | Class |
|---|---|---|
| Abate the infestation consisting of roaches in the entire apartmentNotice Of Issuance Sent To Tenant | Oct 1, 2026 | C |
| Repair the broken or defective plastered surfaces and paint in a uniform color the north wall above bathroom d…Nov Sent Out | Oct 1, 2026 | A |
| Properly repair the source and abate the evidence of a water leak at ceiling in the kitchenNov Sent Out | Oct 1, 2026 | B |
| Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling in the kitchenNov Sent Out | Oct 1, 2026 | B |
| Replace with new the missing escutcheon plate at heat riser in the bathroomNov Sent Out | Oct 1, 2026 | A |
| Properly repair or replace the broken or defective electric light fixture at ceiling in the bathroomNov Sent Out | Oct 1, 2026 | B |
| Properly repair the source and abate the evidence of a water leak at ceiling in the bathroomNov Sent Out | Oct 1, 2026 | B |
| Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling and east wall in th…Nov Sent Out | Oct 1, 2026 | B |
The 8 most recent violations written against this building, newest first, 8 of them still open. Each row is the inspector's own wording with the statute citation removed. Source: NYC HPD violations, current through October 10, 2026.
311 complaint history at 307 12 Street
50 complaints in the past 12 months
NYC 311 housing and building complaints logged for this address. Source: NYC 311, current through October 10, 2026.
How 307 12 Street compares in 11215
PulseCities tracks 9,017 lots in 11215, of which 51 carry an executed eviction from the marshal record, which starts in April 2024, and 645 carry a deed from the shorter ACRIS window. 11215 scores 33.7 out of 100 for displacement pressure, 66 of 177 scored NYC ZIP codes. The full signal breakdown for Park Slope →
Other buildings on this block
The city's files carry a record for 6 other addresses on tax block 1023 in Brooklyn. They run in lot order, which is roughly the order you would walk them:
Questions about 307 12 Street
Who owns 307 12 Street?
The most recent deed on file for 307 12 Street names FLGSP 307 12 ST LLC. Deeds record the party that took title, which is often a holding company rather than the operator managing the building. That deed was recorded Mar 31, 2026.
How much did 307 12 Street sell for?
The most recent deed states a consideration of $3.1M, recorded Mar 31, 2026 in ACRIS. Stated consideration is what the parties filed, and it can differ from the economics of the deal.
Have there been evictions at 307 12 Street?
No executed eviction at 307 12 Street appears in the NYC evictions dataset, which PulseCities holds from April 2024 forward. Executed evictions are the end of the process, so a building with none may still have active housing court cases.
Is 307 12 Street rent stabilized?
DHCR registrations list 21 stabilized units at this building in 2023. Registration is building-level, so it does not settle whether one apartment is stabilized. The free rent history from NYS Homes and Community Renewal does.
What is 307 12 Street assessed at for property taxes?
The Department of Finance assessed the lot at $1.2M for the 2026 tax year. That is the figure the city taxes rather than a sale price, and the bill depends on the tax class rate and on any exemptions on the lot.
What is the displacement risk around 307 12 Street?
11215 (Park Slope) scores 33.7 out of 100 on the PulseCities displacement index. The score reads five ZIP-level signals: LLC acquisition rate, permit intensity, 311 complaint volume, executed evictions, and serious HPD violations. It describes the area around the building, not the building itself.
Look up another building
Sourced from NYC public records: ACRIS deeds, DOB permits, the NYC evictions dataset, and 311. Records reflect what agencies have published and can lag events.