Building Biography

The MapLandlordsNeighborhoodsZIP CodesGradesThe Mice MapAboutWhat's new

820 Thieriot Avenue

2,393Records
18City systems
28Open violations
29Penalty rate
Bronx · ZIP 10473 · Neighborhood: Soundview-Clason Point
Open in the map

2,393 recorded events, 1986–2026, from 18 city data systems. The city's paper trail here is mostly 1,043 HPD complaints, 865 311 service requests, 353 HPD housing violations.

BoroughBronx 10473
Built1968
Floors16
Res. units157
ClassD3
Owner (PLUTO)CAROL HOUSING COMPANY, INC.
BBL2036420030
BIN2092759

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 81% of 100+-unit residential buildings citywide. The citywide median for 100+-unit residential buildings is 3.7 penalty points per 10 units; this building carries 29. In ZIP 10473, 82% of residential buildings hold an A and 6% grade D or F. How grades work

this building
A
B
C

Among 4,677 100+-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

Open HPD violations28 total — 5 class C (immediately hazardous), 10 class B, 13 class A. Oldest open since 2026-02-13.

status snapshot refreshed weekly from HPD records

Patterns

320 heat or hot-water complaints in the last three years (winter 2023–24: 72 · winter 2024–25: 57 · winter 2025–26: 178 · winter 2026–27: 4). Repeated winter clusters suggest a chronic heating problem.

72
’23–24
57
’24–25
178
’25–26
4
’26–27

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

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

What 311 hears from this address

285 service requests in the last three years. Most common: HEAT/HOT WATER (158) · PLUMBING (20) · Noise (15) · Street Condition (14) · Abandoned Vehicle (10) · Sewer (8).

Filed construction activity

$11,104,456 in permitted construction work filed since 2016 (14 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 (1968)
YesSix or more residential units (157)
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)Bronx 314 Owner, LLC
Head officerRon Orgel
Managing agentWinn Management Company LLC
Last registered2026-07-29

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$9,726,000 $4,376,700
2026$9,977,000 $4,489,650
2027$10,781,000 $4,851,450

The city's market estimate has risen 11% between tax years 2025 and 2027.

Tax exemptions on the roll: MITCHELL-LAMA

Building systems

Energy grade (LL33)C — ENERGY STAR score 61/100 (2022 disclosure cycle)
Heating fuelNATURALGAS

Flood exposure

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

Hurricane evacuation zone 4 of 6 — zone 1 evacuates first.

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

12 street-flooding or sewer-backup complaints at this address since 2021 (9 in the last three years).

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

Getting around

SubwaySt Lawrence Av — 6 · 0.7 mi straight-line (about a 19-minute walk) · station accessibility: none
BusNearest boarding stop: Story Av / Thieriot Av — Bx5 · 600 ft
School zones (2024–25 map)Elementary: P.S. 100 Isaac Clason
Middle: J.H.S. 131 Albert Einstein. 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

820 Thieriot 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

285 311 service requests from this address in the last three years — 158 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 WINN MANAGEMENT COMPANY LLC — 16 buildings, 1,811 units. Grades across the portfolio: A8 · B6 · C2. See the whole portfolio

BuildingBoroughUnitsGrade
9000 Shore Road BK558 A
350 St Anns Avenue BX191 C
570 Washington Street MN176 A
820 Thieriot Avenue BX157 B
880 Thieriot Avenue BX157 B
470 East 139 Street BX74 A
521 Commonwealth Avenue BX61 A
520 Rosedale Avenue BX60 A
539 Commonwealth Avenue BX60 A
540 Rosedale Avenue BX60 A
501 Commonwealth Avenue BX58 B
550 Rosedale Avenue BX58 A
502 Rosedale Avenue BX57 B
549 Commonwealth Avenue BX56 B
405 East 137 Street BX16 B
211 Brown Place BX12 C

Sales, deeds & mortgages

DateRecordAmountPer res. unit
2025-05-21ASPM $17,587,064 — from CAROL HOUSING COMPANY, INC.; CAROL GARDENS PRESERVATION LLC; BRONX 314 OWNER, LLC to NEW YORK CITY HOUSING DEVELOPMENT CORPOR $17,587,064
2025-05-21ASPM $3,720,562 — from CAROL HOUSING COMPANY, INC.; BRONX 314 OWNER, LLC; CAROL GARDENS PRESERVATION LLC to NEW YORK CITY HOUSING DEVELOPMENT CORPOR $3,720,562
2025-05-21ASPM $21,855,000 — from CAROL HOUSING COMPANY, INC.; BRONX 314 OWNER, LLC; CAROL GARDENS PRESERVATION LLC to NEW YORK CITY HOUSING DEVELOPMENT CORPOR $21,855,000
2025-05-21Deed $54,500,000 — from CAROL GARDENS PRESERVATION LLC; CAROL HOUSING COMPANY, INC. to BRONX 314 OWNER, LLC; CAROL HOUSING COMPANY, INC. $54,500,000
2025-05-09Sold for $54,500,000 $54,500,000 $347,134

Ten-year activity

5002500
2017
2018
354
2019
2020
2021
2022
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
20174024903256
201812523403254
201946333011354
202011016003174
20210220301206
20221220303209
20230118401186
20240213402138
20250116674178
20260122200223
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 25Enforcement 34Housing & tenants 2,285Ownership & money 7Health & systems 42

Every one of the 2,393 recorded events, 1986–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 10473 · Landlord rankings · How grades work · The map · The Mice Map