509 West 121 Street
Manhattan, NY 10027BBL 1-01976-0020Map
Owner of record: Teachers College Columbia Univerity
509 West 121 Street is an elevator apartment building built in 1911 in Manhattan, 10027. It has 110 residential units across 8 floors. The owner of record is Teachers College Columbia Univerity. HPD has recorded 6 housing violations here, most recently on April 2, 2021. 5 of the 6 most recent violations are still open.
- HPD violations
- 6
- DOB violations
- 53
- ECB violations
- 18
- HPD complaints
- 13
What to know
Immediately hazardous issues among recent violations are still open.
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 · 6
- 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 2, 2021
Closed — Violation dismissed - CImmediately hazardous
Correct the lead-based paint hazard - presumed lead paint that is peeling or on a deteriorated subsurface on wood trim, doors, or windows - using exclusive interim controls, which include a surface dust test in accordance with statute. east door frame, east window frame in the 1st room from east located at apt 605, 6th story, 2nd apartment from south at west
Mar 16, 2003 · Apt 605
Open — First no access to re- inspect violation - CImmediately hazardous
Correct the lead-based paint hazard - presumed lead paint that is peeling or on a deteriorated subsurface on wood trim, doors, or windows - using exclusive interim controls, which include a surface dust test in accordance with statute. east door frame, east window frame in the 2nd room from east located at apt 605, 6th story, 2nd apartment from south at west
Mar 16, 2003 · Apt 605
Open — First no access to re- inspect violation - CImmediately hazardous
Correct the lead-based paint hazard - presumed lead paint that is peeling or on a deteriorated subsurface on wood trim, doors, or windows - using exclusive interim controls, which include a surface dust test in accordance with statute. east window frame in the kitchen located at apt 605, 6th story, 2nd apartment from south at west
Mar 16, 2003 · Apt 605
Open — First no access to re- inspect violation - CImmediately hazardous
Remove or cover in a manner approved by the department the peeling lead paint closet door private hall 8 sty north apt 08 soonyun 678-3601 42850 er1.
Aug 19, 1999
Open — Nov sent out - CImmediately hazardous
Remove or cover in a manner approved by the department the peeling lead paint ceiling 8 sty north apt 804 northeast room 42850 er1. located at apt 804
Aug 19, 1999 · Apt 804
Open — Nov sent out
DOB building violations · 53
- Hazardous condition (facade) facade required
Cycle 9a unsafe report filed
Feb 22, 2022
Dob violation - active - Failure to correct swarmp conditions (facade) facade required
Cycle 9a failure to correct swarmp conditions
Feb 22, 2022
Dob violation - active - Failure to post energy grade/score none
Failure to display energy efficiency score and energy efficiency grade as per adcode sec. 28-309.12.3
Apr 29, 2021
Dob violation - active - Failure to submit eer none
Failure to submit an eer per ad. code sec. 28-308.4 in 2016
Feb 16, 2017
Dob violation - dismissed - Elevator affirmation of correction elevatorrequired
Vio issued to elevator - fail to correct defects on 2015 cat 1 insp/tst
Jan 3, 2017
Dob violation - active - Elevator affirmation of correction elevatorrequired
Vio issued to elevator - fail to correct defects on 2014 cat 1 insp/tst
Nov 14, 2016
Dob violation - dismissed - Elevator affirmation of correction elevatorrequired
Vio issued to elevator - fail to correct defects on 2014 cat 1 insp/tst
Nov 14, 2016
Dob violation - dismissed - Elevator elevatorrequired
E-elevator elevatorrequired
Nov 6, 2015
Dob violation - resolved - Elevator annual inspection / test elevatorrequired
Violation issued to elevator-failure to file category 1 2014 inspection/test
Jun 10, 2015
Dob violation - active - Elevator elevatorrequired
E-elevator elevatorrequired
Nov 14, 2014
Dob violation - resolved
Show 40 more ↓
- Elevator annual inspection / test elevatorrequired
Violation issued to elevator-failure to file category 1 2013 inspection/test
Oct 31, 2014
Dob violation - active - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
Jun 6, 2014
Dob violation - active - Elevator annual inspection / test elevatorrequired
Violation issued to elevator-failure to file category 1 2012 inspection/test
Mar 31, 2014
Dob violation - active - Elevator elevatorrequired
E-elevator elevatorrequired
Sep 26, 2013
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Sep 26, 2013
Dob violation - resolved - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
Jun 3, 2013
Dob violation - dismissed - Elevator annual inspection / test elevatorrequired
Violation issued to elevator-failure to file category 1 2011 inspection/test
Oct 1, 2012
Dob violation - active - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
May 3, 2012
Dob violation - dismissed - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
Jan 1, 2012
Dob violation - dismissed - Elevator annual inspection / test elevatorrequired
Violation issued to elevator-failure to file category 1 2010 inspection/test
Dec 13, 2011
Dob violation - active - Elevator elevatorrequired
E-elevator elevatorrequired
Jan 21, 2011
Dob violation - resolved - Elevator annual inspection / test elevatorrequired
Vcat1-elevator annual inspection / test elevatorrequired
Oct 8, 2010
Dob violation - dismissed - Elevator elevatorrequired
E-elevator elevatorrequired
Apr 16, 2010
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Apr 16, 2010
Dob violation - resolved - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Feb 27, 2009
Dob violation - active - Elevator elevatorrequired
E-elevator elevatorrequired
Jun 13, 2008
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Jun 11, 2008
Dob violation - resolved - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Mar 21, 2008
Dob violation - active - Facade facade optional
Ll1198-local law 11/98 - facade facade optional
Nov 30, 2007
Dob violation - dismissed - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Apr 2, 2007
Dob violation - dismissed - Elevator elevatorrequired
E-elevator elevatorrequired
Oct 12, 2006
Dob violation - active - Elevator elevatorrequired
E-elevator elevatorrequired
Oct 12, 2006
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Mar 14, 2005
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Mar 14, 2005
Dob violation - resolved - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Nov 19, 2004
Dob violation - dismissed - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Mar 21, 2003
Dob violation - dismissed - Elevator elevatorrequired
1p9725
Jul 15, 2002
Dob violation - resolved - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Feb 19, 2002
Dob violation - dismissed - Elevator elevatorrequired
1p9725
May 4, 2001
Dob violation - resolved - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Mar 8, 2001
Dob violation - dismissed - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Mar 10, 2000
Dob violation - dismissed - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Jan 20, 1999
Dob violation - dismissed - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Jan 13, 1997
Dob violation - active - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Jan 13, 1997
Dob violation - dismissed - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Mar 8, 1996
Dob violation - dismissed - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
Apr 17, 1995
Dob violation - dismissed - Elevator elevatoroptional
Ll1081-local law 10/81 - elevator elevatoroptional
May 31, 1994
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1994
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1993
Dob violation - dismissed - Facade facade optional
Ll1080-local law 10/80 - facade facade optional
Jul 1, 1992
Dob violation - dismissed
ECB violations · 18
- Class - 1
Observed suspended scaffold in place and in use at exposure #4 with no designated rigging foreman present. suspended scaffold operations not under direct and continuing supervision of licensed/designated rigger
May 19, 2026 · Penalty $2,530
Resolve - Class - 2
3314.4.3.4 observed suspended scaffold installed and in use at roof/exposure:#4 area with no installation inspection report provided on site. multiple suspended scaffold beams observed in place/in use; no pre-
May 19, 2026 · Penalty $2,530
Resolve - Class - 2
Obs suspended scaffold platform assembled contrary to manufacturer specifications/design requirements. altrex platform, sky climber configuration,& guardrail setup not verified by approved manufacturer data. re
May 19, 2026 · Penalty $1,280
Resolve - Class - 2
Observed suspended scaffold/outrigger beam installation nonconforming to approved cd5. i-beams not indicated on approved plans. safety lines/cables improperly attached to south wall section with no pull test pr
May 19, 2026 · Penalty $1,280
Resolve - Class - 1
3316.7 observed suspended scaffold operations being performed vertically above occupied work areas within same drop zone. workers below exposed to falling object hazards from overhead suspended scaffold operati
May 19, 2026 · Penalty $5,030
Resolve - Class - 2
Observed supported scaffold in use with nonconforming conditions throughout. platform gaps between scaffold and building measured approx. 10"-11". scaffold width measured approx. 3'-5" contrary to approved scaf
May 19, 2026 · Penalty $625
Resolve - Class - 2
Observed sidewalk shed bridge utilized for improper storage of cement bags, rope, signage, equipment, boxed materials, and temporary shanty erected atop shed. materials stored outside designated areas creating
May 19, 2026 · Penalty $625
Resolve - Class - 2
Observed a sws installed along exp 1. upon request for required documents, no loads and imposed letter for the installed sws on exp 1 were produced by site personnel. stop all use of equipment on top of sws on
Mar 30, 2026 · Penalty $1,280
Resolve - Class - 1
Observed a supported scaffold erected without required protective netting installed on all open sides and elevations. failure to provide netting to prevent debris from falling to the street, adjoining propertie
Dec 13, 2025 · Penalty $5,000
Resolve - Class - 2
Failure to file acceptable amended cycle 9a report indicating correction of unsafe conditions described in initial facades report required by 28.302.5 for control #906797. remedy: file acceptable report.
Jan 16, 2024 · Penalty $6,250
Active
Show 8 more ↓
- Class - 2
Sidewalk shed parapet sign panel is not provided. noted: at time of inspection sidewalk shed at exp#1 missing sign panel. it must contain 1)the street address of the site. 2)name of the contractor responsible
Jan 21, 2015 · Penalty $4,000
Active - Class - 2
Work does not conform to approved construction documents and or approved amendments. supported scaffold approved plan shows only 20"outriggers on site 60"side bracket installed with truss.rmdy:conform to approv
Aug 8, 2013
Resolve - Class - 2
Work without permit: expired permit. noted: permit #110100300 for sidewalk shed expired on 02/27/09 rem: renew permit.
May 20, 2009
Resolve - Non-hazardous
Sidwalk shed does not meet building code specifications. observed: using not vandal proof light fixtures at time of inspection. remedy:conform sidewalk shed to building code specifications.
Mar 12, 2008 · Penalty $2,000
Resolve - Non-hazardous
15m 16h 22d 30o 37g 39h 15m07 numbers inside hoistway
Sep 30, 1998 · Penalty $350
Resolve - Non-hazardous
37u16,50u16,54u16,30o2,22o2,16h12,9h12,48b15,57o2. -37,-50,-57u16 in-correct city i.d. numbers
Sep 30, 1998 · Penalty $350
Resolve - Non-hazardous
22d,73o,74i,20q,50y,3m,17q,61h,55x,75u. 74 eork light. 20 old holes. 3handrails and capacity.
Jun 27, 1995 · Penalty $200
Resolve - Non-hazardous
74r,75u,35r,36w,30#,73o,55x. 74 proper city id number. 35 wood under sky light. 30 hole at pit.
Jun 27, 1995 · Penalty $200
Resolve
Complaints
- Heat/hot water
Entire building
Jan 30, 2026 · Apt 3C
Close - Heat/hot water
Entire building
Dec 11, 2025 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 20, 2024 · Apt 401
Close - Heat/hot water
Apartment only
Sep 22, 2015 · Apt 208
Close - General
Doors
Sep 5, 2008 · Apt BLDG
Close - General
Mold
Jan 24, 2006 · Apt 4B
Close - Heating
Heat related
Jan 24, 2006 · Apt 4B
Close - General
Mold
Jan 24, 2006 · Apt 4B
Close - Heating
Heat related
Jan 24, 2006 · Apt 4B
Close - Heating
Heat related
Jan 24, 2006 · Apt 4B
Close
Show 3 more ↓
- Heating
Heat related
Apr 1, 2003 · Apt 4B
Close - Paint/plaster
Door/frame
Mar 11, 2003 · Apt 605
Close - Paint/plaster
Window/frame
Mar 11, 2003 · Apt 605
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Elevator apartment building (D3)
- Year built
- 1911
- Floors
- 8
- Residential units
- 110
- Building area
- 81,632 ft²
- Lot area
- 14,525 ft²
- Zoning
- R8
- Community board
- 109
- Council district
- 7
- Block / lot
- 1976 / 20
- Assessed value
- $5,907,150
- Landmark / historic district
- No
HPD registration #120429, last renewed Jul 23, 2026.
Questions about 509 West 121 Street
Who owns 509 West 121 Street?
The owner of record in NYC Department of City Planning PLUTO data is Teachers College Columbia Univerity.
Does 509 West 121 Street have violations?
Yes. NYC HPD has recorded 6 housing violations at this property.
Is 509 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 509 West 121 Street built?
City records list 1911 as the year it was built.
How many apartments are in 509 West 121 Street?
It has 110 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.