820 Classon Avenue
Brooklyn · 11238 · BBL 3011770033 · look up another building
A company took title here in April 30, 2025, for a stated $6M.
Most recent filing on this building: a violation, May 4, 2026
820 Classon Avenue is a multi-family walk-up in Prospect Heights, Brooklyn, ZIP 11238. City records date it to 1920 and count 8 apartments. The city's property file lists the owner of record as CLASSON BK DEVELOPMENT LLC. Its total assessed value is $734K, for the 2026 tax year.
DHCR registration lists 7 rent-stabilized units here in 2019, 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 820 Classon Avenue
The most recent recorded deed is dated Apr 30, 2025, transferring the lot to CLASSON BK DEVELOPMENT LLC for a stated $6M. 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 1177 in Brooklyn, the block 820 Classon Avenue is on. It lists what was filed there that month, then where the block stands. As of today, that part reads:
- 9 buildings changed hands in the last twelve months.
- The block holds 37 parcels and 302 residential units.
Anything filed on 820 Classon Avenue itself comes the next morning.
Sales and ownership history at 820 Classon Avenue
| Party recorded | Recorded | Amount |
|---|---|---|
| Classon BK Development LLCDEED from 820 CLASSON MANAGEMENT LLC | Apr 30, 2025 | $6.0M |
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 820 Classon Avenue
The city's Department of Finance assessed this lot at $734K for the 2026 tax year. That works out to $92K 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 820 Classon Avenue
No executed eviction is on record at 820 Classon Avenue in the citywide marshal file, which runs from April 2024.
Rent stabilization at 820 Classon Avenue
DHCR registration records list 7 rent-stabilized units at this building in 2019, the most recent year PulseCities holds. 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 820 Classon Avenue
HPD and DOB inspectors have written 3 violations against this building, of which 3 remain unresolved. That is about typical for buildings its size in 11238. The most serious open grade here is class I, immediately hazardous, with 1 open violation.
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 820 Classon Avenue
| Violation | Issued | Class |
|---|---|---|
| File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or…Nov Sent Out | May 4, 2026 | A |
| Owner failed to file a valid registration statement with the department as required by adm code §27-2097 and i…Info Nov Sent Out | Nov 20, 2025 | I |
| File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or…Nov Sent Out | Jun 9, 2025 | A |
The 3 most recent violations written against this building, newest first, 3 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 820 Classon Avenue
3 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 820 Classon Avenue compares in 11238
PulseCities tracks 4,866 lots in 11238, of which 125 carry an executed eviction from the marshal record, which starts in April 2024, and 358 carry a deed from the shorter ACRIS window. 11238 scores 35.3 out of 100 for displacement pressure, 59 of 177 scored NYC ZIP codes. The full signal breakdown for Prospect Heights →
Other buildings on this block
The city's files carry a record for 8 other addresses on tax block 1177 in Brooklyn. They run in lot order, which is roughly the order you would walk them:
- 795 Washington AvenueProspect Heights, 11238
- 458 Saint Johns PlaceProspect Heights, 11238
- 500 St Johns PlaceProspect Heights, 11238
- 796 Classon AvenueProspect Heights, 11238
- 804 Classon AvenueProspect Heights, 11238
- 828 Classon AvenueProspect Heights, 11238
- 443 Lincoln PlaceProspect Heights, 11238
- 437 Lincoln PlaceProspect Heights, 11238
Questions about 820 Classon Avenue
Who owns 820 Classon Avenue?
The most recent deed on file for 820 Classon Avenue names CLASSON BK DEVELOPMENT 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 Apr 30, 2025.
How much did 820 Classon Avenue sell for?
The most recent deed states a consideration of $6M, recorded Apr 30, 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 820 Classon Avenue?
No executed eviction at 820 Classon 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 820 Classon Avenue rent stabilized?
DHCR registrations list 7 stabilized units at this building in 2019. 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 820 Classon Avenue assessed at for property taxes?
The Department of Finance assessed the lot at $734K 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 820 Classon Avenue?
11238 (Prospect Heights) scores 35.3 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.