100 Thayer St

Heat or hot waterApt 6E class C · closed · HPD violation

Heat or hot waterApt 6E complaint

Heat or hot water complaint

2026 Mar

Heat or hot water complaint

Heat or hot waterApt 6E class C · closed · HPD violation

Heat or hot waterApt 6E complaint

Show 6 more

Heat or hot waterApt 6A complaint

Heat or hot water complaint

Heat or hot waterApt 6K complaint

Heat or hot waterApt 5A complaint

2025 Jan

Heat or hot waterApt 6K complaint

2020 Jun

Heating/ventilation permit

Heat source

Boiler burning No. 2 oil (Rockmills MP-100SS), registration current since Jun 2026

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 2026, 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

Heat and hot water complaints

8 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)

Boiler work permitsno recordNo boiler work permits on record

Water and pipes

Issues on record · 9 complaints, 2024–2026 · 7 in the past year

What has happened here

LeaksApt 6E complaint

LeaksApt 6B complaint

LeaksApt 5J class C · HPD violation

LeaksApt 5J class B · HPD violation

LeaksApt 5J class B · HPD violation

LeaksApt 6E class A · HPD violation

Show 21 more

LeaksApt 3H class B · closed · HPD violation

LeaksApt 3H complaint

PlumbingApt 4F complaint

PlumbingApt 6D complaint

PlumbingApt 5D complaint

LeaksApt 6E class B · closed · HPD violation

PlumbingApt 4A complaint

LeaksApt 5J class B · closed · HPD violation

2025 Jan

PlumbingApt 6K complaint

2024 Oct

PlumbingApt 1D complaint

Leaks complaint

LeaksApt 6F complaint

LeaksApt 6E complaint

2023 Nov

2023 Nov

PlumbingApt 5E complaint

Water service lineWhole tax lot

Non-Lead (excavation)

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

Pests and cleanliness

Issues on record · 16 complaints, 2025–2026 · 14 in the past year

What has happened here

MoldApt 6A class B · HPD violation

PestsApt 6E class C · HPD violation

Show 37 more

MoldApt 6A complaint

PestsApt 6K complaint

PestsApt 6K complaint

Unsanitary conditions complaint

PestsApt 5D complaint

PestsApt 3H complaint

PestsApt 4F complaint

PestsApt 3G class B · closed · HPD violation

PestsApt 3G complaint

PestsApt 6H complaint

PestsApt 6H complaint

PestsApt 3H complaint

PestsApt 3G complaint

PestsApt 5D complaint

Mold, pestsApt 5H complaint

2025 Sep

Mold, pestsApt 5F complaint

PestsApt 787535 complaint

MoldApt 5J complaint

2024 Sep

PestsApt 5B complaint

2024 Aug

PestsApt 5D complaint

2024 Jul

2024 Jul

PestsApt 5C class B · closed · HPD violation

PestsApt 5C complaint

PestsApt 6F class C · closed · HPD violation

2024 Apr

PestsApt 5C complaint

2024 Apr

PestsApt 3G complaint

Mold complaint

MoldApt 6D complaint

PestsApt 3C complaint

PestsApt 3C complaint

Fire and safety

7 resolved since 2024

What has happened here

Fire safety class C · closed · HPD violation

Fire safetyApt 6B class C · closed · HPD violation

Fire safetyApt 5J class C · closed · HPD violation

Lead-based paintApt 5K class B · paperwork · closed · HPD violation

2024 Aug

Fire safety class C · closed · HPD violation

Fire safety class B · closed · HPD violation

Show 1 more

Fire safety class C · closed · HPD violation

Electrical

2 complaints, 2025–2026 · 1 in the past year

What has happened here

ElectricalApt 3H complaint

ElectricalApt 6K 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 2026-10-19

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

Elevators

Issues on record · 2 complaints, 2025–2026 · 1 in the past year

What has happened here

Elevators class - 1 · DOB violation

Elevators complaint

ElevatorsApt 6K complaint

Show 6 more

VT-PER-CO Elevators DOB violation

2019 May

Non-Residential Elevator Periodic Inspection/Test DOB violation

2019 Apr

Elevator Annual Inspection / Test DOB violation

2017 Sep

Elevator Annual Inspection / Test DOB violation

2016 Dec

Elevator Annual Inspection / Test DOB violation

Elevators

1 active elevator; latest periodic inspection Jun 2026

DOB NOW Elevator Safety Compliance, as of 2026-10-18 · See this building's elevators on NYC Open Data →

What this counts

Active elevator devices registered to this building ID

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 18 (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

42 open: 32 about building conditions — walls, floors and stairs (14), pests (7), leaks (5), doors and windows (3); 8 immediately hazardous (class C), 10 about paperwork or notices. 25 further violations from 2024–2026 were closed. 334 violations on record in all, 1994–2026 — the 106 most recent are listed here

Walls, floors and stairsApt 6A class B

Fire safety class C · closed

Walls, floors and stairsApt 5J class C

Show 42 more

Fire safetyApt 6B class C · closed

Walls, floors and stairsApt 3H class B

Walls, floors and stairsApt 3H class B

Walls, floors and stairsApt 3H class B

Walls, floors and stairs class A

Walls, floors and stairsApt 5J class A

LeaksApt 5J class B

Doors and windowsApt 5J class B

LeaksApt 5J class B

Doors and windowsApt 5J class B

Doors and windowsApt 5J class B

Fire safetyApt 5J class C · closed

Heat or hot waterApt 6E class C · closed

LeaksApt 3H class B · closed

Other conditionsApt 3H class C · closed

PestsApt 3G class B · closed

Lead-based paintApt 5K class B · paperwork · closed

Heat or hot waterApt 6E class C · closed

Doors and windowsApt 6E class B · closed

Doors and windowsApt 6E class B · closed

Walls, floors and stairsApt 6E class B · closed

LeaksApt 6E class B · closed

Walls, floors and stairsApt 5J class B · closed

LeaksApt 5J class B · closed

2024 Aug

Fire safety class C · closed

2024 Jul

PestsApt 5C class B · closed

Fire safety class B · closed

Fire safety class C · closed

PestsApt 6F class C · closed

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

24 open: 7 about building conditions, 17 about filings or paperwork

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

13 pests, 9 heat or hot water, 6 paint or plaster, 6 plumbing, 4 mold, 3 leaks, 2 appliances, 2 doors or windows, 2 electrical, 2 elevators, 1 general repairs, 1 unsanitary conditions

LeaksApt 6E

Paint or plasterApt 2G

Paint or plaster, leaksApt 6B

Heat or hot waterApt 6E

Paint or plasterApt 1C

Show 55 more

Elevators

Unsanitary conditions

PestsApt 5D

Doors or windows, electrical, paint or plaster, pests, leaksApt 3H

Appliances, plumbing, pestsApt 4F

Paint or plaster, pestsApt 3H

PestsApt 3G

Heat or hot waterApt 6E

Heat or hot waterApt 6A

Heat or hot water

Heat or hot waterApt 6K

Doors or windows, mold, pestsApt 5H

Heat or hot waterApt 5A

2025 Sep

Mold, pestsApt 5F

Electrical, elevators, general repairsApt 6K

Heat or hot waterApt 6K

Paint or plaster, mold, leaks

PestsApt 5G

Paint or plaster, moldApt 6D

Paint or plaster, pestsApt 5G

Paint or plaster, pestsApt 5G

Paint or plasterApt 5G

PestsApt 3C

Doors or windows, paint or plaster, mold, leaksApt 6D

Paint or plasterApt 6D

Doors or windows, floors or stairs, paint or plaster, plumbing, moldApt 5E

AppliancesApt 6K

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

17 permits since 1990

General construction permit

2020 Sep

Plumbing permit, Heating/ventilation permit, General construction permit

2017 Sep

Plumbing permit, General construction permit, Construction fence permit

2015 Mar

Plumbing permit, General construction permit

2014 Jul

General construction permit

and 12 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

EN-LL97321 GHG Emissions - LL97 DOB violation

Aeu-Haz Aeuhaz DOB violation

Paint or plasterApt 2G complaint

Paint or plasterApt 6B complaint

2026 Jun

EN-LL97321 GHG Emissions - LL97 DOB violation

Paint or plasterApt 1C complaint

Show 25 more

Other conditionsApt 3H class C · closed · HPD violation

Doors or windows, paint or plasterApt 3H complaint

AppliancesApt 4F complaint

Paint or plasterApt 3H complaint

Doors or windowsApt 5H complaint

General repairsApt 6K complaint

2025 Apr

AppliancesApt 6H complaint

Paint or plaster complaint

Paint or plasterApt 6D complaint

Paint or plasterApt 5G complaint

Paint or plasterApt 5G complaint

Paint or plasterApt 5G complaint

Doors or windows, paint or plasterApt 6D complaint

Paint or plasterApt 6D complaint

2023 Nov

Doors or windows, floors or stairs, paint or plasterApt 5E complaint

AppliancesApt 6K complaint

2023 Apr

2022 Aug

2021 Jun

2020 Jun

2019 Mar

2019 Mar

2017 Feb