Building report

323 Martense Street · Brooklyn · BBL 3048680075 · generated 2026-10-20 · FREE Print / save PDF

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Where the penalty points come from

Open with the city right now

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.

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

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

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

What the city thinks it's worth

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

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 Copy address

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

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.

Ten-year activity

Show as table

Year	Construction	Enforcement	Housing & tenants	Ownership & money	Total
2017	0	0	15	0	15
2018	0	0	56	0	56
2019	0	0	5	6	11
2020	0	0	45	0	45
2021	0	0	38	0	38
2022	0	0	52	0	52
2023	0	3	66	0	69
2024	0	1	52	1	54
2025	2	0	46	0	48
2026	0	1	29	0	30

The last 12 months — 49 records

The full timeline

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