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736 Riverside Drive

10,636Records
19City systems
320Open violations
505.6Penalty rate
Manhattan · ZIP 10031 · Neighborhood: Hamilton Heights-Sugar Hill
Open in the map

10,636 recorded events, 1968–2026, from 19 city data systems. The city's paper trail here is mostly 4,668 HPD complaints, 2,956 311 service requests, 2,071 HPD housing violations.

BoroughManhattan 10031
Built1926
Floors6
Res. units60
ClassD1
Owner (PLUTO)LGS REALTY PARTNERS LLC . AS OF 30%
BBL1020970047
BIN1062452

Full record, year by year   Support this site

GRADE D

A sustained record of distress well beyond its peers. More recorded distress than 98% 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 505.6. In ZIP 10031, 40% of residential buildings hold an A and 14% 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 violations320 total — 87 class C (immediately hazardous), 206 class B, 27 class A. Oldest open since 2000-04-13.
Pending HPD litigation1 case(s) pending in housing court

status snapshot refreshed weekly from HPD records

Patterns

851 heat or hot-water complaints in the last three years (winter 2023–24: 114 · winter 2024–25: 493 · winter 2025–26: 230). Repeated winter clusters suggest a chronic heating problem.

114
’23–24
493
’24–25
230
’25–26

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

$50,000 in enforcement penalties imposed (ECB/OATH) in the last three years.

What 311 hears from this address

811 service requests in the last three years. Most common: HEAT/HOT WATER (406) · Noise (80) · UNSANITARY CONDITION (49) · WATER LEAK (47) · PAINT/PLASTER (36) · PLUMBING (34).

Filed construction activity

$928,979 in permitted construction work filed since 2016 (26 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 (1926)
YesSix or more residential units (60)
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)Lgs Realty Partners LLC
Head officerIan Lagowitz
Managing agentESTATE REALTY GROUP INC
Last registered2026-04-30

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$3,776,000 $1,699,200
2026$4,472,000 $2,012,400
2027$4,433,000 $1,994,850

The city's market estimate has risen 17% between tax years 2025 and 2027.

Building systems

Energy grade (LL33)D — ENERGY STAR score 30/100, posted at the entrance by law (2022 disclosure cycle)
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.

5 street-flooding or sewer-backup complaints at this address since 2011 (1 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

Subway145 St — 1 · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none
BusNearest boarding stop: Broadway / W 152 St — M4 M5 · 450 ft
Citi BikeRiverside Dr & W 153 St · 550 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 028 Wright Brothers
Middle: Community Math & Science Prep. 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

736 Riverside Drive

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

811 311 service requests from this address in the last three years — 406 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 ESTATE REALTY GROUP INC — 28 buildings, 648 units. Grades across the portfolio: A3 · B8 · C11 · D5 · F1. See the whole portfolio

BuildingBoroughUnitsGrade
580 St Nicholas Avenue MN92 B
736 Riverside Drive MN60 D
2363 7 Avenue MN46 C
245 Sullivan Place BK40 C
3820 Broadway MN37 A
106 Convent Avenue MN34 A
3750 Broadway MN34 C
3760 Broadway MN32 B
510 West 134 Street MN32 C
3336 Perry Avenue BX27 D
605 West 141 Street MN24 C
535 West 155 Street MN21 C
521 West 180 Street MN21 B
539 West 155 Street MN21 B
320 East 126 Street MN20 A
513 West 134 Street MN20 B
145 West 138 Street MN13 C
145 Allen Street MN10 B
419 East 114 Street MN10 C
247 New York Avenue BK9 B
212 Hull Street BK8 C
214 Hull Street BK8 C
683 East 234 Street BX6 D
60 West 130 Street MN6 B
685 East 234 Street BX6 C
22 East 130 Street MN4 D
20 East 130 Street MN4 F
2056 Madison Avenue MN3 D

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $6,391,083 on 2016-07-29 (lender: Signature Bank). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2021-04-06AL&R $11,700,000 — from AHA REALTY PARTNERS LLC; LGS REALTY PARTNERS LLC to SIGNATURE BANK $11,700,000
2021-03-29M&CON $11,700,000 — from AHA REALTY PARTNERS LLC; LGS REALTY PARTNERS LLC to SIGNATURE BANK $11,700,000
2016-07-29AL&R $12,000,000 — from LGS REALTY PARTNERS LLC; AHA REALTY PARTNERS LLC to SIGNATURE BANK $12,000,000
2016-07-29Agreement $12,000,000 — from LGS REALTY PARTNERS LLC; AHA REALTY PARTNERS LLC to SIGNATURE BANK $12,000,000
2016-07-29Mortgage $6,391,083 — from AHA REALTY PARTNERS LLC; LGS REALTY PARTNERS LLC to SIGNATURE BANK $6,391,083
2013-08-27AL&R $6,000,000 — from LGS REALTY PARTNERS LLC; AHA REALTY PARTNERS LLC to CAPITAL ONE, NATIONAL ASSOCIATION $6,000,000
2013-08-27Agreement $6,000,000 — from AHA REALTY PARTNERS LLC; LGS REALTY PARTNERS LLC to CAPITAL ONE, NATIONAL ASSOCIATION $6,000,000
2013-08-27Mortgage $187,167 — from LGS REALTY PARTNERS LLC; AHA REALTY PARTNERS LLC to CAPITAL ONE, NATIONAL ASSOCIATION $187,167
2007-10-29ASPM $6,030,000 — from AHA REALTY PARTNERS LLC; LGS REALTY PARTNERS LLC to SOVEREIGN BANK $6,030,000
2007-10-16Deed $11,000,000 — from 736 RIVERSIDE LLC to LGS REALTY PARTNERS LLC . AS OF 30%; AHA REALTY PARTNERS LLC, . AS OF 70% $11,000,000
2006-09-14Mortgage $1,400,000 — from 539156 LLC; 131 NAGLE LLC; 514135 LLC; 23109 LLC; 500140 LLC; 570156 LLC; 511186 LLC; 736 to RCG LONGVIEW II, L.P. $1,400,000
2005-10-11Mortgage $2,787,404 — from 736 RIVERSIDE LLC to INDEPENDENCE COMMUNITY BANK $2,787,404
2005-10-11Agreement $6,030,000 — from INDEPENDENCE COMMUNITY BANK to 736 RIVERSIDE LLC $6,030,000
2005-08-24DEEDO $8,000,000 — from HUDSON OVERLOOK, LLC to 736 RIVERSIDE LLC $8,000,000
2005-05-20Mortgage $1,163,900 — from HUDSON OVERLOOK LLC to WASHINGTON MUTUAL BANK, FA $1,163,900

Ten-year activity

1,0005000
2017
2018
2019
2020
2021
2022
2023
2024
823
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
201720631205343
201892235802391
2019122155603592
202073043201470
20212843632451
20221851904532
20234836508385
202441566463692
202512479107823
202601356303579
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The full timeline

Construction 164Enforcement 463Housing & tenants 9,887Ownership & money 68Health & systems 54

Every one of the 10,636 recorded events, 1968–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 10031 · Landlord rankings · How grades work · The map · The Mice Map