343 Prospect Avenue
Brooklyn · 11215 · BBL 3010550144 · look up another building
A company took title here in August 18, 2025, for a stated $2.5M.
Most recent filing on this building: a deed, August 18, 2025
343 Prospect Avenue is a one and two family building in Park Slope, Brooklyn, ZIP 11215. City records date it to 1901 and count a single home. The city's property file lists the owner of record as 343 PROSPECT AVE LLC. Its total assessed value is $160K, for the 2026 tax year.
No DHCR registration is on file for this address, which is a gap in the record rather than an answer about 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 343 Prospect Avenue
The most recent recorded deed is dated Aug 18, 2025, transferring the lot to 343 PROSPECT AVE LLC for a stated $2.5M. 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 1055 in Brooklyn, the block 343 Prospect Avenue is on. It lists what was filed there that month, then where the block stands. As of today, that part reads:
- 5 buildings changed hands in the last twelve months.
- The block holds 51 parcels and 86 residential units.
Anything filed on 343 Prospect Avenue itself comes the next morning.
Sales and ownership history at 343 Prospect Avenue
| Party recorded | Recorded | Amount |
|---|---|---|
| 343 Prospect Ave LLCDEED from Private individual | Aug 18, 2025 | $2.5M |
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 343 Prospect Avenue
The city's Department of Finance assessed this lot at $160K for the 2026 tax year. 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 343 Prospect Avenue
No executed eviction is on record at 343 Prospect Avenue in the citywide marshal file, which runs from April 2024.
Rent stabilization at 343 Prospect Avenue
No DHCR rent-stabilization registration is on file for 343 Prospect Avenue in the years PulseCities holds. Absence is not proof: an owner who stops registering leaves the same gap as a building that never had stabilized units. 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 →
How 343 Prospect Avenue 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 8 other addresses on tax block 1055 in Brooklyn. They run in lot order, which is roughly the order you would walk them:
Questions about 343 Prospect Avenue
Who owns 343 Prospect Avenue?
The most recent deed on file for 343 Prospect Avenue names 343 PROSPECT AVE 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 Aug 18, 2025.
How much did 343 Prospect Avenue sell for?
The most recent deed states a consideration of $2.5M, recorded Aug 18, 2025 in ACRIS. Stated consideration is what the parties filed, and it can differ from the economics of the deal.
Have there been evictions at 343 Prospect Avenue?
No executed eviction at 343 Prospect Avenue 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 343 Prospect Avenue rent stabilized?
No DHCR registration for 343 Prospect Avenue appears in the years PulseCities holds. That is a gap in the registration record rather than an answer about any apartment, and the free rent history from NYS Homes and Community Renewal is what settles it.
What is 343 Prospect Avenue assessed at for property taxes?
The Department of Finance assessed the lot at $160K 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 343 Prospect Avenue?
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.