Building Biography

The MapLandlordsNeighborhoodsZIP CodesGradesThe Mice MapAboutWhat's new

399 St Marks Avenue

2,156Records
17City systems
364Open violations
494Penalty rate
Brooklyn · ZIP 11238 · Neighborhood: Crown Heights (North)
Open in the map

2,156 recorded events, 1999–2026, from 17 city data systems. The city's paper trail here is mostly 705 HPD complaints, 659 HPD housing violations, 585 311 service requests.

BoroughBrooklyn 11238
Built2000
Floors3
Res. units24
ClassC1
Owner (PLUTO)KNOX HOMES LP
BBL3011480080
BIN3347674, 3396273, 3396274, 3396275, 3396276, 3396277, 3396278, 3396279

Full record, year by year   Support this site

GRADE D

A sustained record of distress well beyond its peers. More recorded distress than 97% of 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty points per 10 units; this building carries 494. In ZIP 11238, 51% of residential buildings hold an A and 10% grade D or F. How grades work

this building
A
B
C

Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

Open HPD violations364 total — 86 class C (immediately hazardous), 223 class B, 55 class A. Oldest open since 2008-09-16.
Pending HPD litigation1 case(s) pending in housing court

status snapshot refreshed weekly from HPD records

Patterns

89 heat or hot-water complaints in the last three years (winter 2023–24: 23 · winter 2024–25: 8 · winter 2025–26: 32). Repeated winter clusters suggest a chronic heating problem.

23
’23–24
8
’24–25
32
’25–26

No bedbug-infested units reported in the last three years of filings.

What 311 hears from this address

217 service requests in the last three years. Most common: HEAT/HOT WATER (35) · PLUMBING (30) · WATER LEAK (26) · PAINT/PLASTER (23) · UNSANITARY CONDITION (21) · DOOR/WINDOW (13).

Filed construction activity

No permitted work with a declared cost filed in the last decade. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.

Rent-stabilization signals

NoBuilt before 1974 (2000)
YesSix or more residential units (24)
Yes421-a / J-51 tax benefit on the current tax roll

2 of 3 signals present. Buildings receiving 421-a or J-51 benefits are generally required to register their units as rent-stabilized for the duration of the benefit. 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)KNOX HOMES L.P
Head officerALFRED THOMPSON
Managing agentNEW START GROUP, INC
Last registered2025-08-21

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$2,994,000 $1,347,300
2026$3,317,000 $1,492,650
2027$3,194,000 $1,437,300

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

Tax exemptions on the roll: 421A 25 YR NO CAP

Building systems

Heating fuelNATURALGAS

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

SubwayPark Pl — S · 0.2 mi straight-line (about a 6-minute walk) · station accessibility: full
Franklin Av — C S · 0.4 mi straight-line (about a 10-minute walk) · station accessibility: full
BusNearest boarding stop: Bergen St / Grand Av — B65 · 450 ft
Citi BikeGrand Ave & Bergen St · 500 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: Brooklyn Arts and Science Elementary School
Middle: Ebbets Field Middle School. 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

399 St Marks Avenue

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

217 311 service requests from this address in the last three years — 35 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 NEW START GROUP, INC — 6 buildings, 137 units. Grades across the portfolio: C1 · D3 · F2. See the whole portfolio

BuildingBoroughUnitsGrade
530 St Pauls Place BX40 D
575 Grand Avenue BK27 F
399 St Marks Avenue BK24 D
1515 St Johns Place BK20 F
1374 Boston Road BX14 D
63 Montague Street BK12 C

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $3,600,000 on 2014-01-03 (lender: Signature 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
2014-01-03Mortgage $3,600,000 — from FOOD FIRST HOUSING DEVELOPMENT FUND COMP; KNOX HOMES, L.P. to SIGNATURE BANK $3,600,000
2014-01-03AL&R $3,600,000 — from KNOX HOMES, L.P.; FOOD FIRST HOUSING DEVELOPMENT FUND COMP to SIGNATURE BANK $3,600,000

Ten-year activity

5002500
2017
2018
2019
2020
2021
2022
2023
2024
309
2025
2026
EnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
2017010201103
20180720577
2019012001121
20200760177
2021020002202
2022020104205
2023114207150
2024018648198
20251291017309
2026118605192
This record is free. Keeping it free costs money.
Servers, data pipelines, weekends. Pay what you want — a dollar helps.
Chip in

The full timeline

Construction 10Enforcement 8Housing & tenants 2,064Ownership & money 19Health & systems 55

Every one of the 2,156 recorded events, 1999–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 11238 · Landlord rankings · How grades work · The map · The Mice Map