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323 Martense Street

973Records
14City systems
32Open violations
73.5Penalty rate
Brooklyn · ZIP 11226 · Neighborhood: East Flatbush-Erasmus
Open in the map

973 recorded events, 1967–2026, from 14 city data systems. The city's paper trail here is mostly 351 311 service requests, 341 HPD complaints, 193 HPD housing violations.

BoroughBrooklyn 11226
Built1922
Floors4
Res. units27
ClassC1
Owner (PLUTO)DITMAS PARK 307 LLC
BBL3048680075
BIN3108534

Full record, year by year   Support this site

GRADE B

A modest record — below the level that usually signals systemic problems. More recorded distress than 72% of 25-99-unit residential buildings citywide. The citywide median for 25-99-unit residential buildings is 23.6 penalty points per 10 units; this building carries 73.5. In ZIP 11226, 60% of residential buildings hold an A and 10% grade D or F. How grades work

this building
A
B
C

Among 17,252 25-99-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

Open HPD violations32 total — 5 class C (immediately hazardous), 26 class B, 1 class A. Oldest open since 2009-08-22.
Active vacate order2 unit(s) under an unrescinded HPD vacate order

status snapshot refreshed weekly from HPD records

Patterns

64 heat or hot-water complaints in the last three years (winter 2023–24: 10 · winter 2024–25: 26 · winter 2025–26: 28). Repeated winter clusters suggest a chronic heating problem.

10
’23–24
26
’24–25
28
’25–26

3 bedbug-infested unit(s) reported in filings over the last three years.

$2,500 in enforcement penalties imposed (ECB/OATH) in the last three years.

What 311 hears from this address

60 service requests in the last three years. Most common: HEAT/HOT WATER (30) · Noise (10) · PLUMBING (4) · WATER LEAK (3) · General Construction/Plumbing (2) · UNSANITARY CONDITION (2).

Filed construction activity

$181,900 in permitted construction work filed since 2016 (3 filings with a declared cost) — a rough measure of how actively the owner maintains the building. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.

Rent-stabilization signals

YesBuilt before 1974 (1922)
YesSix or more residential units (27)
No421-a / J-51 tax benefit on the current tax roll

2 of 3 signals present. This is the classic profile of a rent-stabilized building (pre-1974, 6+ units) — many units in such buildings remain stabilized. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).

Registered with HPD — the names behind the building

Registered owner(s)Ditmas Park 307, LLC
Head officerSCOTT SILVERMAN
Managing agentBRONSTEIN PROPERTIES LLC
Last registered2025-08-20

as filed by the owner in the building's HPD registration

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$1,756,000 $790,200
2026$1,653,000 $743,850
2027$1,636,000 $736,200

The city's market estimate has fallen 7% between tax years 2025 and 2027.

Flood exposure

Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).

Not in a hurricane evacuation zone.

Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.

No street-flooding or sewer-backup complaints on record at this address.

Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps (cloudburst), NYC hurricane evacuation zones, and 311 records for this address.

Getting around

SubwayChurch Av — 2 5 · 500 ft straight-line (about a 2-minute walk) · station accessibility: full
BusNearest boarding stop: Nostrand Av / Linden Blvd — B44 · 400 ft
Citi BikeLinden Blvd & Nostrand Ave · 500 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 181 Brooklyn
Middle: Parkside Preparatory Academy. Confirm with the DOE's school search.

Distances are straight-line, not walking routes. Transit locations from the MTA and Citi Bike, bike facilities from NYC DOT, school zones from the DOE's 2024–25 maps.

Report a problem to 311

323 Martense Street

Heat or hot waterHeat or hot water
Apartment maintenanceApartment maintenance
Bed bugsBed bugs
Residential pestsResidential pests
Rats or miceRats or mice
Anything elseAnything else

60 311 service requests from this address in the last three years — 30 of them about heat or hot water.

311 will ask for the address, the apartment if the problem is inside, and what's wrong. Contact details are optional for most complaints; food-poisoning reports can be anonymous. Complaints appear in the city's public 311 data, usually within a day or two, and then in the Live from 311 box on this page.

The landlord's report card

Managed by BRONSTEIN PROPERTIES LLC — 140 buildings, 5,632 units. Grades across the portfolio: A56 · B52 · C20 · D11 · F1. See the whole portfolio

BuildingBoroughUnitsGrade
55-15 99 Street QN138 B
90-19 88 Avenue QN127 C
140-02 Franklin Avenue QN120 A
307 West 57 Street MN103 A
1780 West 3 Street BK99 A
43-17 48 Street QN95 B
313 Edgecombe Avenue MN93 B
46-16 47 Street QN86 A
43-05 47 Street QN82 B
118 Post Avenue MN80 B
42-09 47 Avenue QN79 B
43-09 40 Street QN77 B
30 Seaman Avenue MN74 A
82-15 Britton Avenue QN72 B
415 East 17 Street BK72 B
43-34 49 Street QN72 B
43-22 45 Street QN70 A
2015 Dorchester Road BK70 C
60-15 Calloway Street QN67 A
55 Payson Avenue MN66 A
7402 Bay Parkway BK65 B
20 Seaman Avenue MN65 A
20 Laurel Hill Terrace MN64 A
135-16 82 Avenue QN64 B
88-50 179 Street QN63 B
87-24 115 Street QN60 B
521 Isham Street MN60 B
47-07 41 Street QN59 B
50 East 21 Street BK59 B
45-42 41 Street QN59 B
84-05 108 Street QN59 B
135 Clarkson Avenue BK58 B
47-21 41 Street QN58 A
204 Sherman Avenue MN57 A
91 St Nicholas Avenue BK57 B
141 East 19 Street BK56 C
86-02 Park Lane South QN54 B
45 Thayer Street MN53 B
2212 Ditmas Avenue BK52 C
456 Grand Street BK52 A
414 West 44 Street MN52 A
175-39 Highland Avenue QN52 A
133 Seaman Avenue MN49 B
2160 Caton Avenue BK48 A
613 East 16 Street BK48 B
84-23 85 Road QN48 B
612 West 178 Street MN48 A
446 Ocean Avenue BK47 C
85-25 120 Street QN47 B
198-40 32 Avenue QN46 B
555 West 170 Street MN45 D
1605 Putnam Avenue QN45 B
45-35 46 Street QN45 A
85-31 120 Street QN45 A
122-04 Metropolitan Avenue QN44 A
514 West 213 Street MN44 A
609 West 174 Street MN43 A
89-15 102 Street QN43 B
602 West 190 Street MN42 B
51 Stratford Road BK42 B

showing 60 of 140 buildings

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $1,000,000 on 2005-07-22 (lender: Independence Community Bank), covering 2 lots — the amount covers all of them. Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2024-07-05RPTT&RET $4,735,591 — from 5B REALTY COMPANY LLC to FIVE BOROUGHS HOLDINGS LLC $4,735,591
2019-12-03RPTT $3,189,668 — from COMMINGLED PENSION TRUST FUND (SSP) to SSPF REIT 1 LLC $3,189,668
2019-07-09Agreement $5,625,000 — from DITMAS PARK 307 LLC to CAPITAL ONE, NATIONAL ASSOCIATION $5,625,000
2019-07-09Mortgage $31,993 — from DITMAS PARK 307 LLC to CAPITAL ONE, NATIONAL ASSOCIATION $31,993
2019-07-09AL&R $5,625,000 — from DITMAS PARK 307 LLC to CAPITAL ONE, NATIONAL ASSOCIATION $5,625,000
2014-06-25AL&R $6,000,000 — from DITMAS PARK 307 LLC to BANKUNITED, N.A. $6,000,000
2014-06-25Agreement $6,000,000 — from DITMAS PARK 307 LLC to BANKUNITED, N.A. $6,000,000
2014-06-25Mortgage $2,090,995 — from DITMAS PARK 307 LLC to BANKUNITED, N.A. $2,090,995
2011-06-02AL&R $4,125,000 — from DITMAS PARK 307 LLC to CAPITAL ONE, N.A. $4,125,000
2011-06-02Agreement $4,125,000 — from DITMAS PARK 307 LLC to CAPITAL ONE, N.A. $4,125,000
2011-06-02Mortgage $1,166,640 — from DITMAS PARK 307 LLC to CAPITAL ONE, N.A. $1,166,640
2008-05-14ASPM $2,000,000 — from 307-323 MARTENSE REALTY LLC to FANNIE MAE; DITMAS PARK 307 LLC $2,000,000
2008-05-14ASPM $1,000,000 — from 307-323 MARTENSE REALTY LLC to SOVEREIGN BANK; DITMAS PARK 307 LLC $1,000,000
2008-05-14Deed $4,565,000 — from 307-323 MARTENSE REALTY LLC to DITMAS PARK 307 LLC $4,565,000
2005-07-22Deed $4,150,000 — from ATLANTIC ESTATES LLC to 307-323 MARTENSE REALTY LLC $4,150,000

Ten-year activity

100500
2017
2018
2019
2020
2021
2022
69
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & money
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyTotal
20170015015
20180056056
2019005611
20200045045
20210038038
20220052052
20230366069
20240152154
20252046048
20260129030
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The full timeline

Construction 5Enforcement 12Housing & tenants 904Ownership & money 52

Every one of the 973 recorded events, 1967–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 11226 · Landlord rankings · How grades work · The map · The Mice Map