898 recorded events, 1973–2026, from 15 city data systems. The city's paper trail here is mostly 301 HPD complaints, 265 HPD housing violations, 201 311 service requests.
Full record, year by year Support this site
A modest record — below the level that usually signals systemic problems. More recorded distress than 81% 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 116.7. In ZIP 11204, 76% of residential buildings hold an A and 4% grade D or F. How grades work
Among 17,252 25-99-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 99 total — 23 class C (immediately hazardous), 68 class B, 8 class A. Oldest open since 2003-09-12. |
status snapshot refreshed weekly from HPD records
28 heat or hot-water complaints in the last three years (winter 2025–26: 28).
1 bedbug-infested unit(s) reported in filings over the last three years.
110 service requests in the last three years. Most common: Noise (28) · PAINT/PLASTER (20) · HEAT/HOT WATER (14) · FLOORING/STAIRS (9) · PLUMBING (8) · DOOR/WINDOW (5).
$291,775 in permitted construction work filed since 2016 (12 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.
| Yes | Built before 1974 (1928) |
| Yes | Six or more residential units (32) |
| No | 421-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 owner(s) | 6402 23RD AVE LLC |
| Head officer | STEVEN EBNER |
| Managing agent | BROWNSTONE MANAGEMENT LLC |
| Last registered | 2025-07-10 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $2,225,000 | $1,001,250 |
| 2026 | $2,279,000 | $1,025,550 |
| 2027 | $2,261,000 | $1,017,450 |
The city's market estimate has risen 2% between tax years 2025 and 2027.
| Energy grade (LL33) | F — did not submit required benchmarking data, posted at the entrance by law (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
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.
| Subway | Bay Pkwy — N · 850 ft straight-line (about a 4-minute walk) · station accessibility: none Avenue N — F · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Bay Pkwy / 64 St — B6 · 700 ft |
| School zones (2024–25 map) | Elementary: P.S. 226 Alfred De B. Mason Middle: P.S. 226 Alfred De B. Mason. 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.
6402 23 Avenue
| Heat or hot water | Heat or hot water |
| Apartment maintenance | Apartment maintenance |
| Bed bugs | Bed bugs |
| Residential pests | Residential pests |
| Rats or mice | Rats or mice |
| Anything else | Anything else |
110 311 service requests from this address in the last three years — 14 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.
Managed by BROWNSTONE MANAGEMENT LLC — 97 buildings, 821 units. Grades across the portfolio: A65 · B12 · C15 · D5. See the whole portfolio
showing 60 of 97 buildings
| Year | Construction | Enforcement | Housing & tenants | Health & systems | Total |
|---|---|---|---|---|---|
| 2017 | 0 | 1 | 15 | 0 | 16 |
| 2018 | 8 | 3 | 41 | 0 | 52 |
| 2019 | 11 | 10 | 47 | 2 | 70 |
| 2020 | 3 | 3 | 16 | 2 | 24 |
| 2021 | 2 | 1 | 62 | 2 | 67 |
| 2022 | 0 | 1 | 40 | 2 | 43 |
| 2023 | 0 | 2 | 56 | 2 | 60 |
| 2024 | 4 | 1 | 137 | 2 | 144 |
| 2025 | 0 | 0 | 38 | 2 | 40 |
| 2026 | 0 | 0 | 61 | 4 | 65 |
Every one of the 898 recorded events, 1973–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11204 · Landlord rankings · How grades work · The map · The Mice Map