12 Martense Street
Brooklyn · 11226 · BBL 3050890012
12 Martense Street is a multi-family walk-up in Flatbush, Brooklyn, ZIP 11226. City records date it to 1925 and count 20 residential units. The city's property file lists the owner of record as 12 Martense Holding LLC. Its most recent total assessed value is $366K.
Taxes and assessed value
The city's Department of Finance assessed this lot at $366K for the 2026 tax year. That works out to $18K 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.
What the eviction record shows
City marshals executed 4 evictions at 12 Martense Street in the record PulseCities holds, the most recent on May 21, 2026. The first fell on Apr 28, 2025, so the filings span 13 months. Holding the marshal docket number or the court index number from one of these? Look up that case →
Executed evictions
| Type | Executed | |
|---|---|---|
| Residentialdocket 157789 | May 21, 2026 |
Marshal-executed residential evictions from the NYC evictions dataset, past 12 months. Source: NYC marshal eviction records, current through August 27, 2026.
Rent stabilization at this address
No DHCR rent-stabilization registration is on file for 12 Martense Street 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. How to check rent-stabilized status →
Open code violations
HPD and DOB inspectors have written 36 violations against this building, of which 10 remain unresolved. The most serious open grade here is immediately hazardous, with 4 open violations.
Classes run A (non-hazardous) to C (immediately hazardous); DOB class I carries a vacate order. Source: NYC HPD violations, current through August 26, 2026.
Violation history
| Violation | Issued | Class |
|---|---|---|
| Replace or repair the self-closing doors that is missing or defective latch set in the entrance located at apt…Nov Sent Out | Aug 19, 2026 | C |
| Trace and repair the source and abate the visible mold condition... at ceiling (less than 10 sq ft) in the bat…Notice Of Issuance Sent To Tenant | Aug 19, 2026 | A |
| Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the bathroom located…Nov Sent Out | Aug 19, 2026 | A |
| Properly repair the source and abate the evidence of a water leak at ceiling in the bathroom located at apt 2b…Nov Sent Out | Aug 19, 2026 | B |
| Repair, replace or provide an approved and operational smoke detecting device, installed in accordance with de…Nov Sent Out | Aug 19, 2026 | B |
| Repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordan…Nov Sent Out | Aug 19, 2026 | B |
| Remove all obstructions and repair all defects in wasteline at water closet in the bathroom located at apt 2b…Nov Sent Out | Aug 19, 2026 | C |
| Remove all encumbrances consisting of bicycle at public hall, 1st storyNov Sent Out | Aug 19, 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 August 26, 2026.
Building permits
| Work | Filed | Type |
|---|---|---|
| ALERECT, MAINTAIN AND DISMANTLE TEMPORARY WOOD CONSTRUCTION FENCE AS PER PLANS FIL | Nov 17, 2025 | AL |
DOB job filings on this lot, past 12 months. Source: NYC DOB job filings, current through August 26, 2026.
311 complaint history
21 complaints in the past 12 months
NYC 311 housing and building complaints logged for this address. Source: NYC 311, current through August 26, 2026.
How 12 Martense Street compares in 11226
PulseCities tracks 5,313 lots in 11226, of which 449 carry an executed eviction from the marshal record, which starts in April 2024, and 333 carry a deed from the shorter ACRIS window. This building is in that second group, which is 8.5% of the ZIP. 11226 scores 50.0 out of 100 for displacement pressure, 18 of 177 scored NYC ZIP codes. The full signal breakdown for Flatbush →
Watch 12 Martense Street
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Questions about 12 Martense Street
Who owns 12 Martense Street?
The most recent deed on file for 12 Martense Street names 12 Martense Holding LLC. Deeds record the party that took title, which is often a holding company rather than the operator managing the building.
Has 12 Martense Street changed hands recently?
No deed for 12 Martense Street appears in the ACRIS records PulseCities holds. That means no transfer has been published for this lot in the current window, not that the building has never been sold.
Have there been evictions at 12 Martense Street?
Yes. Four marshal-executed evictions at 12 Martense Street appear in the NYC evictions dataset, the most recent on May 21, 2026. The dataset covers executed evictions only, so it undercounts housing court activity: cases that settle or end in a move-out never reach a marshal.
Is 12 Martense Street rent stabilized?
No DHCR registration for 12 Martense Street 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 12 Martense Street assessed at for property taxes?
The Department of Finance assessed the lot at $366K 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 12 Martense Street?
11226 (Flatbush) scores 50.0 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.
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.