166 West 121 Street
Manhattan, NY 10027BBL 1-01905-0061Map
Owner of record: H.s. 121st Street LLC
166 West 121 Street is a walk-up apartment building built in 1910 in Manhattan, 10027. It has 10 residential units across 5 floors. The owner of record is H.s. 121st Street LLC. HPD has recorded 14 housing violations here, most recently on April 29, 2026.
- HPD violations
- 14
- DOB violations
- 9
- ECB violations
- 4
- HPD complaints
- 6
What to know
No open immediately-hazardous violations among recent records.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 14
- ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
Apr 29, 2026
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Nov 17, 2025
Closed — Violation dismissed - CImmediately hazardous
Provide an adequate supply of heat for the apartment in the entire apartment located at apt 1a, 1st story, 1st apartment from north at east
Mar 7, 2023 · Apt 1A
Closed — Violation closed - CImmediately hazardous
Provide hot water at all hot water fixtures in the entire apartment located at apt 1a, 1st story, 1st apartment from north at east
Mar 7, 2023 · Apt 1A
Closed — Violation closed - CImmediately hazardous
Provide ready access to buildings heating system door locked at boiler room
Mar 7, 2023
Closed — Violation dismissed - BHazardous
Discontinue use of rooms for living purposes at cellar in the 1st room from north located at apt 1a, 1st story, 1st apartment from north at east
Mar 7, 2023 · Apt 1A
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Nov 2, 2022
Closed — Violation dismissed - CImmediately hazardous
Fire escape defective. properly secure gusset plate at northeast corner at fire escape, 3rd story
Dec 21, 2020
Closed — Violation dismissed - CImmediately hazardous
Fire escape defective. replace with new the broken, defective and/or missing gusset plate at northwest corner at fire escape, 4th story
Dec 21, 2020
Closed — Violation dismissed - CImmediately hazardous
Fire escape defective. replace with new the broken, defective and/or missing gusset plate at northwest corner at fire escape, 5th story
Dec 21, 2020
Closed — Violation dismissed
Show 4 more ↓
- IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Nov 9, 2017
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Oct 27, 2016
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Oct 2, 2015
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Feb 3, 2015
Closed — Violation dismissed
DOB building violations · 9
- Low pressure boiler boiler required
Violation issued-failure to file 2024 external low pressure inspection
Nov 14, 2025
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2023 external low pressure inspection
Sep 23, 2024
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2020 external low pressure inspection
Jun 30, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2021 external low pressure inspection
Jun 30, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2019 external low pressure inspection
Jun 20, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2022 external low pressure inspection
Apr 25, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2011 inspection report
Mar 1, 2013
Dob violation - dismissed - Low pressure boiler boiler required
Lblvio-low pressure boiler boiler required
Dec 31, 2009
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 19, 2003
Dob violation - dismissed
ECB violations · 4
- Class - 2
Failure to file required annual boiler inspection reports for low-pressure boiler 10000017616y0001 in accordance with the rules of the department. 1rcny 103-01(d)(1) requires that an annual inspection report fo
Dec 16, 2024 · Penalty $625
Active - Class - 1
At time of inspection, premises altered under alt 1 job #123902170 occupied without a valid certificate of occupancy, obtain valid c of o or discontinue illegal occupancy; obtain valid final certificate of occu
Mar 15, 2023
Resolve - Class - 1
At time of inspection, cellar of apartment #1a at 1st floor and cellar of premises occupied as a bedroom, said occupancy contrary to temporary certificate of occupancy #123902170t001, issued 01-13-2021 expired
Mar 15, 2023 · Penalty $625
Resolve - Class - 2
Occupancy contrary to that allowed by c of o and dept of buildings records. room at cellar illegally used for sleeping purposes at duplex apartment 1st room from north located at apt 1f 1st story 1st apt from n
Mar 7, 2023 · Penalty $625
Resolve
Complaints
- Heat/hot water
Entire building
Mar 6, 2023 · Apt BLDG
Close - Appliance
Refrigerator
Apr 26, 2021 · Apt 3A
Close - Heat/hot water
Apartment only
Feb 14, 2021 · Apt 3A
Close - Heat/hot water
Apartment only
Dec 17, 2020 · Apt 3A
Close - Safety
Fire escape
Dec 17, 2020 · Apt 3A
Close - Plumbing
Water supply
Jan 21, 2020 · Apt BLDG
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C1)
- Year built
- 1910
- Floors
- 5
- Residential units
- 10
- Building area
- 7,900 ft²
- Lot area
- 2,119 ft²
- Zoning
- R7-2
- Community board
- 110
- Council district
- 9
- Block / lot
- 1905 / 61
- Assessed value
- $688,050
- Landmark / historic district
- No
HPD registration #113159, last renewed Dec 24, 2025.
Questions about 166 West 121 Street
Who owns 166 West 121 Street?
The owner of record in NYC Department of City Planning PLUTO data is H.s. 121st Street LLC.
Does 166 West 121 Street have violations?
Yes. NYC HPD has recorded 14 housing violations at this property.
Is 166 West 121 Street rent stabilized?
No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.
When was 166 West 121 Street built?
City records list 1910 as the year it was built.
How many apartments are in 166 West 121 Street?
It has 10 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.