21 Schaefer St

Fire safety class C · HPD violation

Fire safety class C · closed · HPD violation

Fire safetyApt 5C class C · closed · HPD violation

Fire safetyApt 5C class C · closed · HPD violation

Fire safetyApt 5E class C · closed · HPD violation

Fire safety class C · closed · HPD violation

Show 1 more

2009 Aug

Sprinklers permit

Structure and facade

Issues on record

What has happened here

Walls, floors and stairsApt 4A class B · HPD violation

Doors and windowsApt 3C class B · HPD violation

Walls, floors and stairsApt 3C class B · HPD violation

Doors and windows class B · HPD violation

Doors and windows class C · HPD violation

Doors and windows class B · HPD violation

Show 5 more

Doors and windows class B · HPD violation

Walls, floors and stairs class B · closed · HPD violation

Walls, floors and stairsApt 3C class A · closed · HPD violation

2019 Aug

General construction permit

2009 Dec

New building permit

Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
Sidewalk shed and scaffoldingno recordNo sidewalk shed permits on record
Landmark statusno recordNot in a historic district on record

Heat and hot water

Issues on record · 84 complaints, 2024–2026 · 22 in the past year

What has happened here

Heat or hot waterApt 3C class B · HPD violation

Heat or hot waterApt 3C class B · HPD violation

Heat or hot waterApt 3C class B · HPD violation

Heat or hot waterApt 5C class C · closed · HPD violation

Show 92 more

Heat or hot waterApt 3A complaint

Heat or hot water class C · closed · HPD violation

Heat or hot waterApt 5C class C · closed · HPD violation

Heat or hot water class C · closed · HPD violation

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

Heat or hot waterApt 1A complaint

Heat or hot waterApt 3A complaint

Heat or hot waterApt 5E complaint

Heat or hot waterApt 4C complaint

Heat or hot waterApt 4C complaint

Heat or hot waterApt 2D complaint

Heat or hot waterApt 2A complaint

Heat or hot waterApt 2C complaint

Heat or hot waterApt 2A complaint

Heat or hot waterApt 3E complaint

Heat or hot waterApt 3A complaint

Heat or hot waterApt 4A complaint

Heat or hot waterApt 2D complaint

Heat or hot waterApt 3B complaint

Heat or hot waterApt 3F complaint

Heat or hot waterApt 3B complaint

2023 Dec

Boiler inspection filings

Latest accepted inspection Mar 2025, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-20 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Heat and hot water complaints

23 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · See the complaints at HPD Online →

What this counts

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

Heat sourceno recordNo boiler registration or district steam on record
Boiler work permitsno recordNo boiler work permits on record

Water and pipes

Issues on record · 9 complaints, 2024–2026 · 5 in the past year

What has happened here

LeaksApt 3C class B · HPD violation

PlumbingApt 4A complaint

Leaks class B · closed · HPD violation

LeaksApt 3F complaint

Show 11 more

PlumbingApt 3A class B · closed · HPD violation

LeaksApt 3C class A · closed · HPD violation

LeaksApt 3C complaint

PlumbingApt 5C complaint

LeaksApt 5A complaint

PlumbingApt 6A complaint

PlumbingApt 5C complaint

PlumbingApt 5C complaint

2024 Mar

PlumbingApt 6A complaint

Water service lineWhole tax lot

Non-Lead (statistical analysis/predictive model)

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

Pests and cleanliness

Issues on record · 21 complaints, 2024–2026 · 8 in the past year

What has happened here

MoldApt 3C complaint

PestsApt 4A class C · HPD violation

Show 38 more

Pests class A · paperwork · closed · HPD violation

MoldApt 3F complaint

2026 May

MoldApt 3C class A · closed · HPD violation

Mold, pests, unsanitary conditionsApt 3C complaint

MoldApt 3C class A · closed · HPD violation

MoldApt 5E class A · closed · HPD violation

Mold, pestsApt 3C complaint

PestsApt 6A class C · closed · HPD violation

PestsApt 6A class C · closed · HPD violation

MoldApt 6A class A · closed · HPD violation

PestsApt 3C class C · closed · HPD violation

Mold, pestsApt 3C complaint

MoldApt 5A complaint

PestsApt 2A complaint

PestsApt 4C complaint

Mold, pestsApt 2A complaint

2024 Oct

2024 Oct

PestsApt 3A complaint

2024 Sep

2024 Aug

2024 Aug

2024 Aug

MoldApt 6C complaint

PestsApt 4B complaint

Electrical

1 complaint, 2025

What has happened here

ElectricalApt 5C class A · closed · HPD violation

ElectricalApt 3C class B · closed · HPD violation

ElectricalApt 3C complaint

Flooding

No issues on record

FEMA flood zone

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

FEMA National Flood Hazard Layer, as of 2026-10-21

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

BasementfoundNo basement

Elevators

Older records on file

What has happened here

2018 Jul

Elevators class - 1 · DOB violation

VCAT1 Elevators never closed · DOB violation

Elevator Annual Inspection / Test never closed · DOB violation

Elevatorsnot requiredNo elevators registered to this building

Energy

ENERGY STAR score 17 (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

48 open: 48 about building conditions — pests (10), doors and windows (9), heat or hot water (6), other conditions (6); 19 immediately hazardous (class C). 25 further violations from 2025–2026 were closed. 242 violations on record in all, 2013–2026 — the 153 most recent are listed here

Heat or hot waterApt 3C class B

Other conditions class A

Other conditionsApt 3C class B

PestsApt 3C class C

Heat or hot waterApt 3C class B

PestsApt 4A class C

Show 42 more

Walls, floors and stairsApt 4A class B

Other conditionsApt 4A class B

Doors and windowsApt 3C class B

Walls, floors and stairsApt 3C class B

LeaksApt 3C class B

Heat or hot waterApt 3C class B

PestsApt 3C class C

Other conditions class A

PestsApt 3C class C

Doors and windows class B

Doors and windows class C

Doors and windows class B

Doors and windows class B

Fire safety class C

Other conditionsApt 5F class C

Smoke or CO detectorsApt 3C class B

Smoke or CO detectorsApt 3C class B

Leaks class B · closed

Walls, floors and stairs class B · closed

2026 May

Pests class A · paperwork · closed

Fire safety class C · closed

MoldApt 3C class A · closed

Fire safetyApt 5C class C · closed

Heat or hot waterApt 5C class C · closed

Heat or hot water class C · closed

ElectricalApt 5C class A · closed

Heat or hot waterApt 5C class C · closed

Fire safetyApt 5C class C · closed

Heat or hot water class C · closed

Heat or hot waterApt 3C class C · closed

MoldApt 3C class A · closed

Fire safetyApt 5E class C · closed

MoldApt 5E class A · closed

Fire safety class C · closed

PlumbingApt 3A class B · closed

PestsApt 6A class C · closed

PestsApt 6A class C · closed

MoldApt 6A class A · closed

ElectricalApt 3C class B · closed

PestsApt 3C class C · closed

Walls, floors and stairsApt 3C class A · closed

LeaksApt 3C class A · closed

Housing Maintenance Code Violations, as of 2026-10-20 · 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

3 open: 1 about building conditions, 2 older than 10 years

2018 Jul

Elevators class - 1

VCAT1 Elevators never closed

Elevator Annual Inspection / Test never closed

DOB Violations, as of 2026-10-20 · 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

85 heat or hot water, 14 mold, 11 pests, 10 paint or plaster, 7 plumbing, 6 appliances, 5 doors or windows, 3 leaks, 2 general repairs, 1 electrical, 1 unsanitary conditions

Appliances, doors or windows, general repairs, paint or plaster, plumbingApt 4A

Plumbing, pestsApt 3C

Paint or plaster, mold, leaksApt 3F

Doors or windows, heat or hot waterApt 5C

Heat or hot water, plumbing, mold, pests, unsanitary conditionsApt 3C

Heat or hot waterApt 3A

Show 116 more

Heat or hot water, mold, pestsApt 3C

MoldApt 5E

Heat or hot waterApt 1A

Heat or hot water, moldApt 3A

Electrical, heat or hot water, paint or plaster, mold, pests, leaksApt 3C

Doors or windows, plumbingApt 5C

Doors or windowsApt 5A

Paint or plaster, mold, leaksApt 5A

General repairs, pestsApt 2A

Appliances, paint or plaster, moldApt 2A

MoldApt 6A

Heat or hot waterApt 5E

Heat or hot waterApt 4C

Paint or plaster, moldApt 6A

Appliances, heat or hot water, pestsApt 4C

Heat or hot waterApt 2D

Appliances, heat or hot water, paint or plaster, mold, pestsApt 2A

Heat or hot waterApt 2C

Heat or hot waterApt 2A

Heat or hot waterApt 3E

Heat or hot water, plumbing, pestsApt 3C

Heat or hot waterApt 3A

Heat or hot waterApt 4A

Heat or hot waterApt 2D

Heat or hot waterApt 3B

Doors or windowsApt 5C

Heat or hot waterApt 3F

Heat or hot waterApt 3B

Paint or plaster, pestsApt 3A

Doors or windowsApt 5C

Doors or windows, general repairs, moldApt 6C

Paint or plaster, plumbingApt 6A

General repairs, paint or plaster, plumbingApt 6A

2023 Dec

General construction permit

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · 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

3 permits since 1990

2019 Aug

DOB NOW: Build – Approved Permits, as of 2026-10-20 · 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

Other conditionsApt 3C class B · HPD violation

Other conditionsApt 4A class B · HPD violation

Other conditions class A · HPD violation

Other conditionsApt 5F class C · HPD violation

Appliances, doors or windows, general repairs, paint or plasterApt 4A complaint

Show 21 more

Smoke or CO detectorsApt 3C class B · HPD violation

Smoke or CO detectorsApt 3C class B · HPD violation

Paint or plasterApt 3F complaint

Paint or plasterApt 3C complaint

Doors or windowsApt 5A complaint

Paint or plasterApt 5A complaint

General repairsApt 2A complaint

Appliances, paint or plasterApt 2A complaint

Paint or plasterApt 6A complaint

AppliancesApt 4C complaint

Appliances, paint or plasterApt 2A complaint

Paint or plasterApt 3A complaint

2024 Oct

2024 Jun

Doors or windows complaint

2024 May

2024 May

Doors or windows complaint

Doors or windows, general repairsApt 6C complaint