521 West 23 Street
Manhattan, NY 10011BBL 1-00695-7502Map
Owner of record: Unavailable Owner
521 West 23 Street is a condominium built in 1914 in Manhattan, 10011. It has 7 residential units across 10 floors. The owner of record is Unavailable Owner. HPD has recorded 41 housing violations here, most recently on June 20, 2026. 31 of the 41 most recent violations are still open.
- HPD violations
- 41
- DOB violations
- 17
- ECB violations
- 11
- HPD complaints
- 21
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 · 41
- ANon-hazardous
Properly repair or replace the broken or defective counter balance at lower sash at east 2 window in the 1st room from east located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - ANon-hazardous
Properly repair or replace the broken or defective counter balance at lower sash at east 5 window in the 1st room from east located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - ANon-hazardous
Properly repair with similar material the broken or defective ceramic floor tiles in the 1st room from east at south located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - ANon-hazardous
Trace and repair the source and abate the visible mold condition... less then 10sqfeet at ceiling in the 2nd room from east located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Notice of issuance sent to tenant - ANon-hazardous
Properly repair or replace the broken or defective counter balance at upper sash at east 2 window at north wall in the 2nd room from east located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - ANon-hazardous
Properly repair with similar material the broken or defective wood floor in the 1st room from east located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - BHazardous
Properly repair the source and abate the evidence of a water leak ceiling and north wall in the 1st room from east located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling and north wall in the 1st room from east located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Notice of issuance sent to tenant - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Notice of issuance sent to tenant
Show 31 more ↓
- ANon-hazardous
Properly repair with similar material the broken or defective wood floor in the kitchen located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Closed — Violation closed - ANon-hazardous
Provide a peep hole in entrance door of the dwelling unit so located so as to permit a person inside the dwelling to view any person outside entrance door entrance door in the entrance located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - ANon-hazardous
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 2nd room from east located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - ANon-hazardous
Properly repair with similar material the broken or defective wood door at base cabinet in the kitchen located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - ANon-hazardous
Properly repair with similar material the broken or defective ceramic wall tiles in the bathroom located at apt 3r, 3rd story, 1st apartment from west at north
Jun 20, 2026 · Apt 3R
Open — Nov sent out - BHazardous
Repair or replace the smoke detector missing in the entire apartment located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Closed — Violation dismissed - BHazardous
Repair or replace the carbon monoxide detecting device(s). missing in the entire apartment located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Closed — Violation dismissed - BHazardous
Trace and repair the source and abate the visible mold condition... less than 10sq ft at ceiling in the 2nd room from east located at apt 3r, 3rd story, 1st apartment from west at north original violation 17884864 issued 09-may-25 has been upgraded to class b per administrative code 27-2017.3a(3)(a) or (b).
May 9, 2025 · Apt 3R
Open — First no access to re- inspect violation - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 1st room from east located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Open — Notice of issuance sent to tenant - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Open — Nov certified late - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges at secondary egress at door leading to public hall in the private hallway located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Open — Nov certified late - BHazardous
Properly repair and abate unsafe electric wiring condition consisting of exposed wires at ceiling in the 1st room from east located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling in the kitchen located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling in the 2nd room from east located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Open — Nov sent out - ANon-hazardous
Trace and repair the source and abate the visible mold condition... less than 10sq ft at ceiling in the 2nd room from east located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Closed — Violation closed - BHazardous
Remove all encumbrances consisting of household items and boxes at public hall, 3rd story
May 9, 2025
Closed — Violation dismissed - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 3r, 3rd story, 1st apartment from west at north
May 9, 2025 · Apt 3R
Open — Notice of issuance sent to tenant - CImmediately hazardous
Provide an adequate supply of gas to the fixtures at range in the kitchen located at apt 9, 9th story, 1st apartment from south at west
Apr 30, 2024 · Apt 9
Open — Nov sent out - BHazardous
Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 9, 9th story, 1st apartment from south at west
Apr 30, 2024 · Apt 9
Open — Invalid certification - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 9, 9th story, 1st apartment from south at west
Apr 30, 2024 · Apt 9
Open — Invalid certification - CImmediately hazardous
Remove device preventing door from being self-closing hook and eye at vestibule door at public hall, 1st story
Apr 30, 2024
Closed — Violation closed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 9, 9th story, 1st apartment from south at west
Apr 30, 2024 · Apt 9
Closed — Violation closed - 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.
Feb 16, 2022
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 10, 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 - BHazardous
Arrange and make self-closing the doors door bulkhead at roof.
Apr 22, 1999
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective eroded mortar joints north wall 5 to 6 sty public hall stairs.
Apr 22, 1999
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective eroded mortar joints north wall 2 to 3 sty public hall stairs.
Apr 22, 1999
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective fire rated ceiling 1 sty public hall.
Apr 22, 1999
Open — Nov sent out
DOB building violations · 17
- Hazardous condition (facade) facade required
Cycle 9a unsafe report filed
Feb 3, 2022
Dob violation - active - Elevator elevatorrequired
E-elevator elevatorrequired
Jan 5, 2021
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Jan 29, 2020
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Jan 13, 2016
Dob violation - resolved - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jul 2, 2014
Dob violation - dismissed - Elevator annual inspection / test elevatorrequired
Violation issued to elevator-failure to file category 1 2012 inspection/test
Mar 31, 2014
Dob violation - dismissed - Elevator elevatorrequired
E-elevator elevatorrequired
Feb 28, 2011
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Jun 3, 2009
Dob violation - active - Elevator elevatorrequired
E-elevator elevatorrequired
Jun 3, 2009
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Nov 13, 2008
Dob violation - resolved
Show 7 more ↓
- Facade facade optional
Ll1198-local law 11/98 - facade facade optional
Nov 30, 2007
Dob violation - dismissed - Elevator elevatorrequired
E-elevator elevatorrequired
Nov 27, 2007
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Mar 13, 2007
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Nov 30, 2004
Dob violation - resolved - Elevator elevatorrequired
E-elevator elevatorrequired
Dec 24, 2003
Dob violation - resolved - Elevator elevatorrequired
1p4484
Mar 14, 2003
Dob violation - resolved - Facade facade required
L1198-local law 11/98 - facade facade required
Aug 8, 2002
Dob violation - dismissed
ECB violations · 11
- Class - 2
Found federal fst -100, with exposed wiring, openings on ceiling and walls, safety releif valve label not legible(1), oil pump set not to run constant only when boiler runs, also missing belt guard.
Apr 5, 2024 · Penalty $625
Active - Class - 2
Failure to maintain exterior facade and appurtenances. south elevationexposure 1,observed cracks in water table on 3rd fl,cracks in masonry at various locations in cornice. exposure 2 west elevation,observed cr
Dec 30, 2020 · Penalty $1,250
Resolve - Class - 2
Sign/panel on sidewalk shed not provided.pictures filed. remedy:comply w/code.
May 6, 2014 · Penalty $830
Resolve - Class - 2
B254./15/16/32a/50a/50b/ 50a-remove temporary above ground 330 gal oil tank from staircase/fill line. 50b-boiler room not a storage room.
Apr 3, 2014 · Penalty $250
Resolve - Class - 1
Failure to maintain bldg in code compliant manner.during physical inspfound that the address above has 2 gas meters & related pipng located in hallway of this multi dwelling mix use bldg.insp was conducted as
Apr 1, 2014
Resolve - Class - 1
Work w/o a permit.upon physical inspection found on 7fl apt 7f sprinkler piping & sprinklers heads removed w/o a permit.remedy:obtain a permit or restore premises to prior legal condition.
Oct 2, 2008 · Penalty $1,600
Resolve - Hazardous
Sec 27-1055 (1) no danger signs posted. use of rigger equipment w/o proper "danger" signs. (2) no protection of ropes or cables around sharp bends, corners etc "tied around steel beam on water tower on roof.
Apr 17, 2008 · Penalty $1,000
Resolve - Hazardous
Workers on scaffold w/o a certificate of fitness. licensed rigger failed to ensure scaffold workers met minimum requirements.
Apr 17, 2008 · Penalty $1,500
Resolve - Non-hazardous
Having non-illuminates signage extending higher than 75ft above curb level.(signage is approx 100' above the curb level)remedy:remove illegal signage
Dec 9, 2003 · Penalty $400
Resolve - Non-hazardous
02l11/ 56t07/ # 02 - l - 11 emerg. alarm button does not contact anyone 56 - t -07 device no wher ever needed
Mar 10, 2003
Resolve
Show 1 more ↓
- Hazardous
Failure to file an ammended round five report acceptable to this department pursuant to rule r.c.n.y. 32-03b(5),indicating correction of hazardous conditions described in initial ll11/98report remedy file an am
May 3, 2002 · Penalty $2,500
Resolve
Complaints
- Unsanitary condition
Mold
Jun 18, 2026 · Apt 3R
Close - Door/window
Window frame
Jun 18, 2026 · Apt 3R
Close - Flooring/stairs
Floor
Jun 18, 2026 · Apt 3R
Close - Paint/plaster
Ceiling
Jun 18, 2026 · Apt 3R
Close - Paint/plaster
Ceiling
Jun 18, 2026 · Apt 3R
Close - Water leak
Damp spot
Jun 18, 2026 · Apt 3R
Close - Unsanitary condition
Pests
Jun 18, 2026 · Apt 3R
Close - Unsanitary condition
Pests
Jun 18, 2026 · Apt 3R
Close - Flooring/stairs
Floor
Jun 18, 2026 · Apt 3R
Close - Unsanitary condition
Pests
May 7, 2025 · Apt 3R
Close
Show 11 more ↓
- Paint/plaster
Ceiling
May 7, 2025 · Apt 3R
Close - Unsanitary condition
Pests
May 7, 2025 · Apt 3R
Close - Unsanitary condition
Pests
Apr 2, 2025 · Apt 3R
Close - Door/window
Window frame
Apr 2, 2025 · Apt 3R
Close - Unsanitary condition
Mold
Apr 2, 2025 · Apt 3R
Close - Unsanitary condition
Pests
Apr 2, 2025 · Apt 3R
Close - Paint/plaster
Ceiling
Apr 2, 2025 · Apt 3R
Close - Unsanitary condition
Pests
Apr 2, 2025 · Apt 3R
Close - General
Cooking gas
Dec 22, 2023 · Apt 6F
Close - Heat/hot water
Entire building
Dec 20, 2023 · Apt 3F
Close - Heating
Heat related
Nov 11, 2010 · Apt 3R
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Condominium (RM)
- Year built
- 1914
- Floors
- 10
- Residential units
- 7
- Building area
- 36,866 ft²
- Lot area
- 4,938 ft²
- Zoning
- C6-3A
- Community board
- 104
- Council district
- 3
- Block / lot
- 695 / 7502
- Assessed value
- $7,025,125
- Landmark / historic district
- No
HPD registration #141083, last renewed Jul 23, 2026.
Questions about 521 West 23 Street
Who owns 521 West 23 Street?
The owner of record in NYC Department of City Planning PLUTO data is Unavailable Owner.
Does 521 West 23 Street have violations?
Yes. NYC HPD has recorded 41 housing violations at this property.
Is 521 West 23 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 521 West 23 Street built?
City records list 1914 as the year it was built.
How many apartments are in 521 West 23 Street?
It has 7 residential units and 14 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.