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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

Concern
5 open Class C

Immediately hazardous issues among recent violations are still open.

Good
Last violation Apr 2, 2021

Date of the most recent HPD inspection that found a problem.

Good
No unpaid ECB fines

No balance due on recent ECB violations.

Rent stabilization

No rent-stabilized units in 2018–2024 tax bills

Some apartments can still be regulated. Use the rent-stabilized checker or request the rent history from HCR.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 6

  • A

    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
  • C

    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
  • C

    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
  • C

    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
  • C

    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
  • C

    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

Sales come from the NYC Department of Finance rolling sales file.

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.