436 West 20 Street
Manhattan, NY 10011BBL 1-00717-0062Map
Owner of record: Chelsea Square, LLC
436 West 20 Street is a walk-up apartment building built in 1835 in Manhattan, 10011. It has 7 residential units across 5 floors. The owner of record is Chelsea Square, LLC. HPD has recorded 49 housing violations here, most recently on April 29, 2026.
- HPD violations
- 49
- DOB violations
- 16
- ECB violations
- 15
- HPD complaints
- 54
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 · 49
- 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 - 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.
Jun 4, 2025
Closed — Violation dismissed - 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 1, 2024
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 15, 2023
Closed — Violation dismissed - 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.
Mar 15, 2023
Closed — Violation dismissed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective .. in the entrance located at apt 2, 2nd story, 1st apartment from west at north
Oct 27, 2021 · Apt 2
Closed — Violation dismissed - BHazardous
Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 2, 2nd story, 1st apartment from west at north
Oct 27, 2021 · Apt 2
Closed — Violation dismissed - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 2, 2nd story, 1st apartment from west at north
Oct 27, 2021 · Apt 2
Closed — Violation dismissed - CImmediately hazardous
Provide hot water at all hot water fixtures in the entire apartment located at apt 3, 3rd story, 1st apartment from south at west
Oct 22, 2021 · Apt 3
Closed — Violation closed - CImmediately hazardous
Fire escape defective. replace with new the broken, defective and/or missing 2nd and 15th metal treads from bottom up at 2nd story balcony at fire escape building front
Oct 22, 2021
Closed — Violation closed
Show 39 more ↓
- CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective ... in the entrance located at apt 3, 3rd story, 1st apartment from south at west
Oct 22, 2021 · Apt 3
Closed — Violation dismissed - ANon-hazardous
§ 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor missing at public hall, 1st story
Oct 22, 2021
Closed — Violation dismissed - ANon-hazardous
Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected
Oct 22, 2021
Closed — Violation dismissed - ANon-hazardous
§ 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor missing at public hall, 1st story
Sep 8, 2021
Closed — Violation dismissed - ANon-hazardous
Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected
Sep 8, 2021
Closed — Violation dismissed - CImmediately hazardous
M/d law abate the nuisance consisting of scalding hot water exceeding a maximum of 130 degrees in the entire apartment located at bsmt-apt garden, 1st bsmt-apt from east at south
Jul 2, 2021 · Apt GARDEN
Closed — Violation closed - CImmediately hazardous
Remove the illegal double cylinder key operated locking device at door in the entire apartment located at bsmt-apt garden, 1st bsmt-apt from east at south
Jul 2, 2021 · Apt GARDEN
Closed — Violation dismissed - BHazardous
§ 53,187,231 m/d law & dept rules & reg. provide means of egress from yard to street by fireproof passageway for which application must be filed for approval,or by unlocked door or gate in fence to adjoining premises with consent of adjacent owner.
Jul 2, 2021
Closed — Violation dismissed - ANon-hazardous
And dept. rules and regulations. scrape and remove rust scales and paint with 2 coats of paint all balconys at all stories at south fire escape
Jul 2, 2021
Closed — Violation dismissed - CImmediately hazardous
M/d law abate the nuisance consisting of hot water exceeds 130 degrees maximum temperature at all fixtures in the entire apartment located at apt 3, 3rd story, 1st apartment from west at north
Jun 26, 2021 · Apt 3
Closed — Violation closed - BHazardous
Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 3, 3rd story, 1st apartment from west at north
Jun 26, 2021 · Apt 3
Closed — Violation dismissed - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 3, 3rd story, 1st apartment from west at north
Jun 26, 2021 · Apt 3
Closed — Violation dismissed - BHazardous
M/d law abate the nuisance consisting of cold water has 115 degrees fahrenheit at all fixtures in the entire apartment located at apt 3, 3rd story, 1st apartment from west at north
Jun 26, 2021 · Apt 3
Closed — Violation dismissed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective .. in the entrance located at apt 3, 3rd story, 1st apartment from west at north
Jun 26, 2021 · Apt 3
Closed — Violation dismissed - 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 1, 2021
Closed — Violation dismissed - BHazardous
And dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes flower pots at 2nd story balcony building front
Jan 17, 2020
Closed — Violation dismissed - ANon-hazardous
And dept. rules and regulations. scrape and remove rust scales and paint with 2 coats of paint at fire escape at building front
Jan 17, 2020
Closed — Violation dismissed - ANon-hazardous
And dept. rules and regulations. scrape and remove rust scales and paint with 2 coats of paint all stories, all parts all components of fire escape at front of building
Sep 4, 2018
Closed — Violation dismissed - BHazardous
Properly repair with similar material the broken or defective wooden soffit above building entrance door at stoop, 1st story
Sep 4, 2018
Closed — Violation dismissed - BHazardous
Properly repair and abate unsafe electric wiring condition consisting of exposed electrical wires at east and west walls at building entrance exterior at stoop, 1st story
Sep 4, 2018
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 26, 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 - BHazardous
D26-10.01, 10.05 adm code and dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes 3 4 stys at front.
Mar 30, 1982
Closed — Violation dismissed - BHazardous
D26-10.01 adm code & 309 m/d law abate the nuisance consisting of tree branches blocking drop ladder at front fire escape.
Mar 30, 1982
Closed — Violation dismissed - ANon-hazardous
D26-10.01 adm code provide board of standards & appeals approved type peephole in entrance doors to each housing unit where not already provided.
Jun 28, 1979
Closed — Violation dismissed - ANon-hazardous
D26-10.01 adm code abate the nuisance consisting of excessive amount of wood etc stored cellar.
Jun 28, 1979
Closed — Violation dismissed - ANon-hazardous
D26-10.01 adm code abate the nuisance consisting of storage of furniture basement & 4th sty public hall.
Jun 28, 1979
Closed — Violation dismissed - ANon-hazardous
D26-10.01 adm code replace with new the missing iron ladder 4 sty public hall to roof at scuttle recess.
Jun 28, 1979
Closed — Violation dismissed - BHazardous
D26-11.01, 11.03, 11.05 adm code remove the accumulation of refuse and/or rubbish and maintain in a clean condition the cellar throughout.
Jun 28, 1979
Closed — Violation dismissed - BHazardous
D26-10.01, 10.05 adm code remove all encumbrances consisting of bldg material 1 sty pub hall.
Jun 28, 1979
Closed — Violation dismissed - BHazardous
D26-10.01 adm code properly secure the loose clg light fixture 2 sty pub hall.
Jun 28, 1979
Closed — Violation dismissed - BHazardous
D26-10.01 adm code replace with new the missing clg light fixtire 1 sty pub hall at front.
Jun 28, 1979
Closed — Violation dismissed - BHazardous
D26-10.01 adm code properly repair with similar material the broken or defective clg basement sty pub hall.
Jun 28, 1979
Closed — Violation dismissed - BHazardous
D26-10.01 adm code properly repair with similar material the broken or defective wood floor basement sty pub hall.
Jun 28, 1979
Closed — Violation dismissed - ANon-hazardous
§ 300 m/d law file plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration closet erected 4 sty pub hall at scuttle.
Jun 28, 1979
Closed — Violation dismissed - ANon-hazardous
D26-10.01 adm code properly repair with similar material the broken or defective ceiling cellar.
Jun 28, 1979
Closed — Violation dismissed - ANon-hazardous
D26-12.03 adm code and dept. rules and regulations. scrape and remove rust scales and paint with 2 coats of paint front fire escape all stys.
May 31, 1979
Closed — Violation dismissed - BHazardous
D26-10.01, 10.05 adm code remove all encumbrances consisting of wood bricks etc frnt areaway.
May 31, 1979
Closed — Violation dismissed - BHazardous
D26-10.01 adm code abate the nuisance consisting of vines growing on fire escape obstructing egress.
May 31, 1979
Closed — Violation dismissed
DOB building violations · 16
- Low pressure boiler boiler required
Violation issued-failure to file 2024 external low pressure inspection
Nov 14, 2025
Dob violation - dismissed - Low pressure boiler boiler required
Violation issued-failure to file 2023 external low pressure inspection
Sep 23, 2024
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Oct 4, 2023
Dob violation - dismissed - Low pressure boiler boiler required
Violation issued-failure to file 2020 external low pressure inspection
Jun 30, 2023
Dob violation - dismissed - Low pressure boiler boiler required
Violation issued-failure to file 2022 external low pressure inspection
Apr 25, 2023
Dob violation - dismissed - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2012 inspection report
May 15, 2014
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 - dismissed - Landmark none
Landmk-landmark none
Feb 23, 2011
Dob violation - dismissed - Landmark none
Landmk-landmark none
Mar 22, 2010
Dob violation - dismissed - Landmark none
Landmk-landmark none
May 29, 2009
Dob violation - dismissed
Show 6 more ↓
- Construction other optional
Failure to provide accepted plans at job site at time of inspection no ted: construction site active and wall (new) at basement level on plan as existing angles (steel) for support of existing wood joist no on plans remedy: provide amend plans call excavation unit 212442-1544
Apr 27, 2009
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 31, 2005
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 19, 2003
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
May 4, 1998
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1993
Dob violation - dismissed - Construction other optional
C-construction other optional
Feb 14, 1990
Dob violation - dismissed
ECB violations · 15
- Class - 2
Failure to submit certificate of correction for violation # 39081710p issued on 03/17/2023 for miscellaneous violations ( cold form steel installed ), file a certificate of correction
Oct 28, 2025 · Penalty $1,250
Resolve - Class - 2
Bc 3307.6.3 at time of inspection of a 4 stories building i observed sidewalk shed installed on exposure # 1 without extended to adjacent buildings on both side with minimum extension as require by code this cr
Dec 23, 2024 · Penalty $2,500
Resolve - Class - 2
At time of inspection of a 4 stories building job site i observed construction fence in place at exposure # 1 and 4 without plexiglass to cover the view port which creates large opening on fence which can lead
Dec 23, 2024 · Penalty $1,000
Resolve - Class - 2
Violation issued for temporary construction equipment on site with expired permit. atoi observed temporary green construction fence installed at exp 1 around yard. active constructiob site permit #m00877998-i1-
Sep 20, 2024 · Penalty $625
Resolve - Class - 2
Failure to post or property post permit for work at premises. atoi observed active construction site, with active permit on file with the department, but expired permit posted on fence at exp 1 of property perm
Sep 20, 2024 · Penalty $150
Resolve - Class - 2
Violation issued for temporary construction equipment on site with expired permit. atoi observed temporary construction a supported pie scaffolding installed at exp 1 and fully netted and covered. active constr
Sep 20, 2024 · Penalty $625
Resolve - Class - 1
At 3rd floor observed cold formed steel installed. department records indicate no tr-1 filed.; bc 1705.2.6, comply with code; file tr-1
Mar 17, 2023 · Penalty $1,250
Resolve - Class - 2
Failure to comply with commissioner's order contained in summons/violation#39015718y issued on 1/14/2020,and to file a certificate of correction pursuant to 28-201.1 and 1rcny 102-01(d)(2).an acceptible certifi
Jun 29, 2021 · Penalty $3,125
Resolve - Class - 2
No door in boiler room-combustion air from outside not supplied to boiler room-flue piping not supported-draft regulator defective
Jan 14, 2020 · Penalty $625
Resolve - Class - 2
Failure to maintain bldg in a code compliant manner. defects noted: attime of inspection step cracks are observed through mortar joints and bricks at right side of exp 1, front of bldg. vertical cracks are also
Aug 6, 2012 · Penalty $250
Resolve
Show 5 more ↓
- Class - 2
Work does not conform to approved construction documents &/or approvedamendments not conforming work noted:altered bldg under appl#110952636apprx on 01/29/2010.having erected appr 12ftx7ft skylight @ center of
Oct 20, 2010
Resolve - Class - 2
Failure to comply with the commissioner's order to file a certificate of correction with the dept of buildings for open ecb notice of violation #34843734x. remedy: comply with the commissioner's order file cert
Aug 5, 2010 · Penalty $4,000
Resolve - Class - 1
Erected or install supported scaffold 40ft or higher w/o a permit. noted at exp 1 front facade erected at ground level an approx 56' supported scaffold for front facade repair & transport of materials to upper
Mar 11, 2010 · Penalty $1,200
Resolve - Class - 2
Fail to post permit for work @ premises. noted: one man seen working at const site, where no permit was posted. remedy: post permit.
Mar 9, 2010 · Penalty $4,000
Resolve - Class - 1
Work w/o a permit noted at stair case from 1st to 4th fl demolition of ceiling covering at the underside of each stair run has been removed nd new reinforcing lumber approx (nomuse) 2"x6" has been ancured to ea
Dec 4, 2008 · Penalty $1,600
Resolve
Complaints
- Heat/hot water
Entire building
Oct 25, 2021 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 19, 2021 · Apt 3
Close - Appliance
Electric/gas range
Oct 19, 2021 · Apt 3
Close - Heat/hot water
Entire building
Sep 5, 2021 · Apt BLDG
Close - Heat/hot water
Entire building
Sep 5, 2021 · Apt BLDG
Close - Heat/hot water
Entire building
Jun 30, 2021 · Apt GARDEN
Close - Heat/hot water
Entire building
Jun 30, 2021 · Apt BLDG
Close - Heat/hot water
Entire building
Jun 24, 2021 · Apt BLDG
Close - Plumbing
Water supply
Jun 19, 2021 · Apt BLDG
Close - General
Signage missing
Jun 19, 2021 · Apt BLDG
Close
Show 40 more ↓
- Safety
Fire escape
Jan 16, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Jan 11, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Dec 20, 2019 · Apt BLDG
Close - Heat/hot water
Entire building
Jul 9, 2019 · Apt 3
Close - Heat/hot water
Entire building
Sep 5, 2018 · Apt 1
Close - Heat/hot water
Entire building
Sep 5, 2018 · Apt 1
Close - Heat/hot water
Apartment only
Sep 1, 2018 · Apt GARDEN
Close - Heat/hot water
Entire building
Jun 12, 2017 · Apt BM
Close - Plumbing
Water supply
Jan 23, 2015 · Apt BLDG
Close - Heating
Heat related
Jun 17, 2009 · Apt 4
Close - Electric
Electric-supply
May 28, 2009 · Apt 4
Close - Paint/plaster
Wall
May 19, 2009 · Apt 4
Close - Paint/plaster
Wall
May 19, 2009 · Apt 4
Close - Plumbing
Water supply
May 15, 2009 · Apt 4
Close - Plumbing
Water supply
May 14, 2009 · Apt 4
Close - Plumbing
Water supply
May 10, 2009 · Apt 4
Close - Plumbing
Water supply
May 10, 2009 · Apt 4
Close - Plumbing
Water supply
Apr 22, 2009 · Apt 4
Close - Plumbing
Water supply
Apr 19, 2009 · Apt 4
Close - Nonconst
Rubbish
Apr 8, 2009 · Apt 4
Close - Electric
Bell-buzzer/intercom
Apr 8, 2009 · Apt 4
Close - Plumbing
Water supply
Apr 8, 2009 · Apt 4
Close - Electric
Bell-buzzer/intercom
Apr 4, 2009 · Apt 4
Close - Plumbing
Water supply
Apr 4, 2009 · Apt 4
Close - Plumbing
Water supply
Apr 4, 2009 · Apt 4
Close - Electric
Bell-buzzer/intercom
Mar 31, 2009 · Apt 4
Close - Plumbing
Water supply
Mar 31, 2009 · Apt 4
Close - Heating
Heat related
Mar 20, 2009 · Apt 4
Close - General
Cooking gas
Mar 20, 2009 · Apt 4
Close - Electric
Bell-buzzer/intercom
Mar 20, 2009 · Apt 4
Close - Heating
Heat related
Mar 20, 2009 · Apt 4
Close - General
Cooking gas
Mar 19, 2009 · Apt 4
Close - Heating
Heat related
Mar 19, 2009 · Apt 4
Close - Electric
Bell-buzzer/intercom
Mar 10, 2009 · Apt 4
Close - General
Floor
Mar 6, 2009 · Apt 4
Close - Electric
Bell-buzzer/intercom
Mar 5, 2009 · Apt 4
Close - Heating
Heat related
Mar 5, 2009 · Apt 4
Close - Electric
Bell-buzzer/intercom
Mar 4, 2009 · Apt 4
Close - Heating
Heat related
Mar 4, 2009 · Apt 4
Close - Electric
Bell-buzzer/intercom
Feb 27, 2009 · Apt 4
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C1)
- Year built
- 1835
- Floors
- 5
- Residential units
- 7
- Building area
- 5,247 ft²
- Lot area
- 2,574 ft²
- Zoning
- R7B
- Community board
- 104
- Council district
- 3
- Block / lot
- 717 / 62
- Assessed value
- $2,176,200
- Landmark / historic district
- Chelsea Historic District
HPD registration #132029, last renewed Aug 4, 2025.
Questions about 436 West 20 Street
Who owns 436 West 20 Street?
The owner of record in NYC Department of City Planning PLUTO data is Chelsea Square, LLC.
Does 436 West 20 Street have violations?
Yes. NYC HPD has recorded 49 housing violations at this property.
Is 436 West 20 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 436 West 20 Street built?
City records list 1835 as the year it was built.
How many apartments are in 436 West 20 Street?
It has 7 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.