820 Riverside Dr

Heat or hot waterApt 2D complaint

Heat or hot waterApt 1G complaint

Show 56 more

Heat or hot waterApt 3C class B · closed · HPD violation

Heat or hot waterApt 5D complaint

Heat or hot waterApt 1I complaint

Heat or hot waterApt 2D complaint

Heat or hot waterApt 5H complaint

Heat or hot waterApt 2B complaint

Heat or hot waterApt 3E complaint

Heat or hot waterApt 1H complaint

Heat or hot waterApt 4H complaint

Heat or hot waterApt 4H complaint

2025 Mar

2025 Feb

2025 Jan

2024 Dec

2024 Nov

2024 Nov

Heat or hot waterApt 5C complaint

Heat or hot waterApt 5C complaint

Heat or hot waterApt 2D complaint

Heat or hot waterApt 3A complaint

Fuel burning permit, Boiler permit

2020 Dec

Heat source

Boiler burning natural gas (Weil-Mclain 888), registration current since Jan 2025

Clean Air Tracking System (boiler registrations), as of 2026-10-19 · See this building's boiler registrations on NYC Open Data →

Boiler inspection filings

Latest accepted inspection Feb 2024, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-17 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 2020 (5 on record)

DOB Permit Issuance (BIS), as of 2026-10-19

What this counts

DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age

Heat and hot water complaints

30 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-19 · See the complaints at HPD Online →

What this counts

HPD complaints, heat season 2025–26 (Oct 1–May 31)

Water and pipes

3 complaints, 2025–2026

What has happened here

2026 Sep

PlumbingApt 5E complaint

2026 Aug

PlumbingApt 5E complaint

PlumbingApt 2D class B · closed · HPD violation

PlumbingApt 6C complaint

Leaks class B · closed · HPD violation

Leaks class B · closed · HPD violation

Show 5 more

LeaksApt 1D class B · closed · HPD violation

Water service line

Non-Lead (field inspection)

Lead Service Line Location Coordinates, as of 2026-01-30

Pests and cleanliness

Issues on record (2025) · 8 complaints, 2025–2026 · 5 in the past year

What has happened here

2026 Oct

PestsApt 3G complaint

Pests class A · paperwork · HPD violation

Show 10 more

MoldApt 1C class C · HPD violation

PestsApt 1A complaint

2025 Jun

MoldApt 1C class C · HPD violation

2025 Mar

PestsApt 1A class C · HPD violation

PestsApt 1A complaint

2023 Jul

2022 Jan

MoldApt 4D class C · HPD violation

2021 Aug

MoldApt 1D class B · HPD violation

2019 Feb

MoldApt 5C class C · HPD violation

Fire and safety

6 resolved since 2025

What has happened here

Flooding

No issues on record

FEMA flood zone

Outside FEMA's 1% annual-chance flood zone: X

FEMA National Flood Hazard Layer, as of 2026-10-19

What this counts

Effective FIRM zones touching the building footprint

Stormwater flooding

Extreme storm, 2080 sea levels: Not in mapped flooding; Moderate storm, 2050 sea levels: Not in mapped flooding; Moderate storm, today's sea levels: Not in mapped flooding; Limited storm, today's sea levels: Not loaded (file format unreadable)

NYC Stormwater Flood Maps, as of 2024-07-03

What this counts

Mapped ponding touching the building footprint

BasementWhole tax lot

Below grade

PLUTO (tax lot data), as of 2026-08-24

Rent and tenancy

On the state list

Rent stabilization

On the state's list of buildings with at least one rent-stabilized apartment (2024 registrations)

Rent Stabilized Building Lists (2024 HCR registrations), as of 2025-11-30

What this counts

The list doesn't say which apartments are stabilized, and being listed isn't proof of current status. For a specific apartment, request its rent history from HCR

Energy

ENERGY STAR score 97 (2024 report)

Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25

What this counts

Letter grades are issued by the city under Local Law 33 and posted near the building entrance; Blueflo shows the reported score only

General condition and all records

HPD violations

13 open: 12 about building conditions — mold (5), doors and windows (4), other conditions (2), pests (1); 6 immediately hazardous (class C), 1 about paperwork or notices. 25 further violations from 2025–2026 were closed. 446 violations on record in all, 1999–2026 — the 45 most recent are listed here

Other conditions class A

Doors and windowsApt 3A class B

Pests class A · paperwork

Doors and windows class B

Heat or hot waterApt 3C class B · closed

Show 30 more

Smoke or CO detectorsApt 4H class B · closed

Smoke or CO detectorsApt 4H class B · closed

Doors and windowsApt 2D class B · closed

PlumbingApt 2D class B · closed

Doors and windowsApt 1A class C

Smoke or CO detectorsApt 1A class B · closed

Smoke or CO detectorsApt 1A class B · closed

Other conditionsApt 2D class B

Leaks class B · closed

Leaks class B · closed

Walls, floors and stairs class A · closed

Doors and windowsApt 2D class B · closed

Smoke or CO detectorsApt 2D class B · closed

Smoke or CO detectorsApt 2D class B · closed

Smoke or CO detectorsApt 1D class B · closed

Smoke or CO detectorsApt 1D class B · closed

Walls, floors and stairsApt 1D class B · closed

LeaksApt 1D class B · closed

Walls, floors and stairsApt 1C class A · closed

Walls, floors and stairsApt 1C class A · closed

2023 Jul

PestsApt 1A class C

2023 Jun

Doors and windowsApt 2D class B

Housing Maintenance Code Violations, as of 2026-10-19 · Read these violations in full at HPD Online →

What this counts

Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify

DOB violations

7 open: 5 about building conditions, 2 about filings or paperwork

2026 Aug

Construction class - 2

2026 Aug

Construction class - 1

EN-EGRDEA Energy Grade - LL33

2025 Feb

Construction class - 1

2025 Feb

Construction class - 1

DOB Violations, as of 2026-10-18 · Read these violations in full at DOB →

What this counts

Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major

Resident complaints to the city

36 heat or hot water, 16 general repairs, 6 unsanitary conditions, 4 appliances, 3 plumbing, 2 paint or plaster, 2 pests, 1 doors or windows, 1 floors or stairs, 1 safety

Show 83 more

Heat or hot waterApt 2D

Heat or hot waterApt 1G

Heat or hot waterApt 5D

Heat or hot waterApt 1I

Heat or hot waterApt 2D

Heat or hot waterApt 5H

Heat or hot waterApt 2B

Heat or hot waterApt 3E

Heat or hot waterApt 1H

Heat or hot waterApt 4H

Floors or stairs, paint or plaster, plumbingApt 6C

Heat or hot waterApt 4H

Doors or windows, unsanitary conditions

Appliances, pestsApt 1A

Heat or hot waterApt 5C

Heat or hot waterApt 5C

Heat or hot waterApt 2D

Heat or hot waterApt 3A

Plumbing permit, Fuel burning permit, Boiler permit

Housing Maintenance Code Complaints and Problems, as of 2026-10-19 · See the complaints at HPD Online →

What this counts

HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years

Permit history

33 permits since 1990

2021 Feb

2020 Dec

Plumbing permit

2020 Jan

General construction permit

2019 Sep

General construction permit

2018 Oct

Plumbing permit, General construction permit

2018 Jul

General construction permit, Plumbing permit

and 27 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-17 · See every permit at DOB →

What this counts

DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds

Everything else on record

Other conditions class A · HPD violation

Show 29 more

Aeu-Haz Aeuhaz DOB violation

Aeu-Haz Aeuhaz DOB violation

EN-EGRDEA Energy Grade - LL33 DOB violation

AppliancesApt 3A complaint

2026 Feb

Smoke or CO detectorsApt 4H class B · closed · HPD violation

Smoke or CO detectorsApt 4H class B · closed · HPD violation

Floors or stairs, paint or plasterApt 6C complaint

Smoke or CO detectorsApt 1A class B · closed · HPD violation

Smoke or CO detectorsApt 1A class B · closed · HPD violation

Doors or windows complaint

AppliancesApt 1A complaint

2025 Jul

AppliancesApt 1A complaint

Other conditionsApt 2D class B · HPD violation

Smoke or CO detectorsApt 2D class B · closed · HPD violation

Smoke or CO detectorsApt 2D class B · closed · HPD violation

Smoke or CO detectorsApt 1D class B · closed · HPD violation