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523 West 173 Street

Manhattan, NY 10032BBL 1-02130-0057Map

Owner of record: W 173 Group LLC

523 West 173 Street is an elevator apartment building built in 2015 in Manhattan, 10032. It has 8 residential units. The owner of record is W 173 Group LLC. HPD has recorded 44 housing violations here, most recently on August 19, 2026. 15 of the 44 most recent violations are still open. City tax records listed 8 rent-stabilized apartments here in 2024.

HPD violations
44
DOB violations
8
ECB violations
27
HPD complaints
26

What to know

Concern
5 open Class C

Immediately hazardous issues among recent violations are still open.

Watch
Last violation Aug 19, 2026

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

Rent-stabilized units in 2024
8
About 100% of the building's 8 apartments

Counts come from owners' rent-stabilization filings shown on NYC Department of Finance tax bills, as extracted by JustFix. They tell you a building has stabilized apartments, not which ones.

Stabilized units by tax-bill year

Think your apartment is stabilized? Request its rent history from HCR (free), then check your renewal with the renewal calculator.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 44

  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story

    Aug 19, 2026

    Open — Nov certified on time
  • C

    M/d law abate the nuisance consisting of hot water exceeding 130 degrees at all hot water fixtures in the entire apartment located at apt 2r, 2nd story, 1st apartment from west at north

    Feb 9, 2026 · Apt 2R

    Closed — Violation closed
  • C

    Provide an adequate supply of heat for the apartment in the entire apartment located at apt 2r, 2nd story, 1st apartment from west at north

    Feb 9, 2026 · Apt 2R

    Open — Invalid certification
  • C

    Provide ready access to buildings heating system locked door at basement at boiler room

    Feb 9, 2026

    Open — Nov sent out
  • C

    Abate the infestation consisting of roaches in the entire apartment located at apt 2r, 2nd story, 1st apartment from west at north

    Feb 9, 2026 · Apt 2R

    Closed — Violation dismissed
  • B

    Repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules missing in the entire apartment located at apt 2r, 2nd story, 1st apartment from west at north

    Feb 9, 2026 · Apt 2R

    Closed — Violation dismissed
  • B

    Repair, replace or provide an approved and operational smoke detecting device, installed in accordance with department of buildings rules and regulations missing in the entire apartment located at apt 2r, 2nd story, 1st apartment from west at north

    Feb 9, 2026 · Apt 2R

    Closed — Violation dismissed
  • C

    Replace or repair the self-closing doors that is missing or defective latch set at building entrance door

    Oct 6, 2025

    Closed — Violation closed
  • C

    Abate the infestation consisting of roaches in the entire apartment located at apt 1f, 1st story, 1st apartment from west at north

    Aug 23, 2025 · Apt 1F

    Closed — Violation dismissed
  • B

    Trace and repair the source and abate the visible mold condition... less than 10 square ft at ceiling in the bathroom located at apt 1f, 1st story, 1st apartment from west at north

    Aug 23, 2025 · Apt 1F

    Open — First no access to re- inspect violation
Show 34 more ↓
  • A

    Paint with light colored paint to the satisfaction of this department at ceiling in the bathroom located at apt 1f, 1st story, 1st apartment from west at north

    Aug 23, 2025 · Apt 1F

    Closed — Violation dismissed
  • C

    Abate the infestation consisting of roaches in the entire apartment located at apt 2r, 2nd story, 1st apartment from west at north

    Aug 18, 2025 · Apt 2R

    Closed — Violation dismissed
  • A

    Paint with light colored paint to the satisfaction of this department at ceiling and east wall at basement

    Aug 18, 2025

    Closed — Violation dismissed
  • A

    Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mailbox missing at public hall, 1st story

    Aug 18, 2025

    Closed — Violation dismissed
  • C

    Post notice, in form approved by the department, stating the name and location of the person designated by the owner to have key to buildings heating system missing at public hall, 1st story

    Aug 18, 2025

    Open — Invalid certification
  • B

    Repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules defective in the entire apartment located at apt 2r, 2nd story, 1st apartment from west at north

    Aug 18, 2025 · Apt 2R

    Closed — Violation dismissed
  • A

    Paint with light colored paint to the satisfaction of this department at ceiling and east wall at laundry room

    Aug 18, 2025

    Closed — Violation dismissed
  • B

    Properly repair or replace the broken or defective intercom system panel at south wall in the kitchen located at apt 2r, 2nd story, 1st apartment from west at north

    Aug 18, 2025 · Apt 2R

    Closed — Violation dismissed
  • B

    Repair, replace or provide an approved and operational smoke detecting device, installed in accordance with department of buildings rules and regulations defective in the entire apartment located at apt 2r, 2nd story, 1st apartment from west at north

    Aug 18, 2025 · Apt 2R

    Closed — Violation dismissed
  • A

    Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story

    Aug 18, 2025

    Closed — Violation dismissed
  • B

    Properly repair the source and abate the evidence of a water leak at ceiling and east wall at laundry room

    Aug 18, 2025

    Closed — Violation dismissed
  • B

    Properly repair the source and abate the evidence of a water leak at ceiling and east wall at basement

    Aug 18, 2025

    Closed — Violation dismissed
  • A

    Trace and repair the source and abate the visible mold condition... less than 10 square feet at ceiling at basement

    Aug 18, 2025

    Closed — Violation closed
  • A

    Trace and repair the source and abate the visible mold condition... more than 10 square feet at west wall at basement

    Aug 18, 2025

    Closed — Violation closed
  • A

    § 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

    Aug 18, 2025

    Closed — Violation dismissed
  • A

    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 at public hall, 1st story

    Aug 18, 2025

    Closed — Violation dismissed
  • A

    Post a proper notice of carbon monoxide detecting device requirements, in a form approved by commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in private dwellings missing

    Aug 18, 2025

    Closed — Violation dismissed
  • B

    Trace and repair the source and abate the visible mold condition... less than 10 square feet at ceiling at basement original violation 18168356 issued 18-aug-25 has been upgraded to class b per administrative code 27-2017.3a(3)(a) or (b).

    Aug 18, 2025

    Open — Not complied with
  • B

    Trace and repair the source and abate the visible mold condition... more than 10 square feet at west wall at basement original violation 18168357 issued 18-aug-25 has been upgraded to class b per administrative code 27-2017.3a(3)(a) or (b).

    Aug 18, 2025

    Open — Defect letter issued
  • 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 17, 2024

    Closed — Violation dismissed
  • I

    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
  • 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.

    Mar 31, 2023

    Closed — Violation dismissed
  • I

    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
  • 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.

    Mar 10, 2022

    Closed — Violation dismissed
  • 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 20, 2021

    Closed — Violation dismissed
  • I

    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.

    Apr 20, 2021

    Closed — Violation dismissed
  • C

    Provide an adequate supply of gas to the fixtures at gas range in the kitchen located at apt 2f, 2nd story, 1st apartment from east at south

    Jun 22, 2017 · Apt 2F

    Open — Nov sent out
  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story

    Jun 22, 2017

    Open — Nov sent out
  • A

    Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story

    Jun 22, 2017

    Open — Nov sent out
  • A

    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 at public hall, 1st story

    Jun 22, 2017

    Open — Nov sent out
  • C

    Post notice, in form approved by the department, stating the name and location of the person designated by the owner to have key to buildings heating system - missing at public hall, 1st story

    Jun 22, 2017

    Open — Nov sent out
  • A

    Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box - missing at public hall, 1st story

    Jun 22, 2017

    Open — Nov sent out
  • A

    Post a proper notice of carbon monoxide detecting device requirements, in a form approved by the commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in a private dwelling. at public hall, 1st story

    Jun 22, 2017

    Open — Nov sent out
  • A

    § 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

    Jun 22, 2017

    Open — Nov sent out

DOB building violations · 8

  • Fail to certify class 1 none

    Failure to certify correction on immediately hazardous (class 1) ecb violation

    Jul 25, 2018

    Dob violation - dismissed
  • Construction other optional

    The borough commissioner has issued a stop work order for application #120841553 due to the withdrawal of the superintendent of construction . stop all work, make site safe, provide all required information fort hwith

    Nov 21, 2017

    Dob violation - dismissed
  • Fail to certify class 1 none

    Failure to certify correction on immediately hazardous (class 1) ecb violation

    Jan 25, 2017

    Dob violation - dismissed
  • Fail to certify class 1 none

    Failure to certify correction on immediately hazardous (class 1) ecb violation

    Feb 24, 2016

    Dob violation - dismissed
  • Fail to certify class 1 none

    Failure to certify correction on immediately hazardous (class 1) ecb violation

    Oct 7, 2015

    Dob violation - dismissed
  • Fail to certify class 1 none

    Failure to certify correction on immediately hazardous (class 1) ecb violation

    Oct 7, 2015

    Dob violation - dismissed
  • Fail to certify class 1 none

    Failure to certify correction on immediately hazardous (class 1) ecb violation

    Oct 7, 2015

    Dob violation - dismissed
  • Fail to certify class 1 none

    Failure to certify correction on immediately hazardous (class 1) ecb violation

    Aug 26, 2015

    Dob violation - dismissed

ECB violations · 27

  • Class - 2

    Failure to comply with the commissioners order contained in summons/violation #35323114m issued on 04/24/18 and to file a certificate of correction pursuant to 28-201.1 and 1rcny 102-01.for c of c.rem:comply wi

    Aug 7, 2018 · Penalty $5,000

    Resolve
  • Class - 2

    Failure to comply w/the comm's order contained in summons/vio#35323114m issued on 04-24-18 & to file a c of c pursuant to 28-201.1 & 1rcny 102-01. new bldg occupied w/o a valid c of o. remedy: comply w/comm's o

    Jun 15, 2018 · Penalty $3,125

    Resolve
  • Class - 1

    New building occupied w/o a valid co. noted at the inspection i observed a 4story nb under permit 120841553 occupied w/o a signoff or new coapprx 8'apartments. rmdy: obtain a valid co.

    Apr 24, 2018 · Penalty $1,250

    Resolve
  • Class - 1

    Unlawfully continued work while on notice of 3-partial stop work orders bldg completed at time of this inspection.recinds were not obtained for 3 partial swo (1)defective,dangerous scaffold at exp3 (2)no permit

    Oct 24, 2016 · Penalty $25,000

    Resolve
  • Class - 1

    Failure to adequately supervise wrk at construction site,so as to maintain a safe construction site and insure compliance with approved construction documents and chapter 33 of bldg code.supervisor allowed wrk

    Oct 24, 2016

    Resolve
  • Class - 2

    3301.2 failure to safeguard.observed 1)stairway landing not level w/top stair (top stair slip approx 1"-2" above landing)2)electrical cords running in stairway 3)(planks) in stairway @4" fl to roof.(then) casui

    Dec 4, 2015

    Resolve
  • Class - 2

    Failure to maintain adequate housekeeping per section requirements an excessive amount of debris & bldg materials has accumulated in rear yard.rem:remove excessive debris & materials from rear yard.

    Dec 4, 2015 · Penalty $800

    Resolve
  • Class - 2

    Jobsite fence not constructed pursuant to subsections.missing section of fence @rear yard & front yard.rem:repair & or replace missing section of const fence.

    Dec 4, 2015

    Resolve
  • Class - 2

    Failure to post "no smoking" signs throughout bldg as required by firecode.rem:provide/post required "no smoking" signs throughout jobsite/bldg.

    Dec 4, 2015

    Resolve
  • Class - 1

    3301.2 failure to safeguard.guard railings has not been provide @exp#3(rear) of roof level also the guard railing @roof level stairway landing is defective/not secure & not up yo cable.partial stop work order:i

    Dec 4, 2015 · Penalty $4,800

    Active
Show 17 more ↓
  • Class - 1

    Failure to safeguard supported scaffold @rear yard (exp#3) was observed w/the following conditions 1)base plates were sitting an cmu units 2)(cross bows) were missing 3)no guardrails 4)no (toeboards) 5)loose un

    Dec 4, 2015 · Penalty $8,000

    Active
  • Class - 1

    Unlawfully continued work while on notice of a partial stop work order a p-swo# 071415bs12jm05/35146539n was issued for not providinh a sidewalk shed @exp#1 which still needed to be completed work continued w/o

    Dec 4, 2015 · Penalty $1,200

    Resolve
  • Class - 1

    3301.2 failure to safeguard.hand railing as per code has not been provided for stairway.wire cables provided are not as per code & are missing & defective throughout stairway.rem:install/provide hand railing in

    Dec 4, 2015 · Penalty $1,000

    Active
  • Class - 2

    Jobsite fence not constructed pursuant to subsection.(gate/opening) in fence swings out onto sidewalk creating a danger to pedestrians walking on sidewalk.rem:repair & or replace gate in fence so that it swings

    Dec 4, 2015

    Resolve
  • Class - 2

    Failure to provide approved nb plans @jobsite @time of insp.const of a new 4 story bldg is in progress.rem:provide approved nb plans @jobsite.

    Dec 4, 2015 · Penalty $2,500

    Active
  • Class - 2

    3313.1 combustible liquid not stored properly.a filled plastic gas container was observed an 1st fl can/container nad more than 2 1/2 gals of gas used for portable generator in ops on.rem:remove plastic gas con

    Dec 4, 2015 · Penalty $4,000

    Active
  • Class - 1

    Work w/out apermit.a supported pipe scaffold has been erected @rear bldg (exp#3).scaffold is more than 40' in height (from grade to roof).workers were observed working on scaffold @time of insp.partial stop wor

    Dec 4, 2015 · Penalty $800

    Resolve
  • Class - 1

    33037.2 failure to provide required fire extinguishers.no fire extinguishers @all were found in bldg.rem:provide required fire extinguishers in bldg as per fdny.

    Dec 4, 2015 · Penalty $8,000

    Active
  • Class - 1

    Failure to provide sidewalk shed where required.bldg is over 40'in height at exp1 and no shed has been erected.nb application info on bis shows bldg to be 45'h.no one at site to provide approved elevation plans

    Jul 14, 2015 · Penalty $24,000

    Resolve
  • Class - 2

    Failure to safeguard all persons and property affected by constructionoperations.nuermous nails were observed sticking out of fence at sidewalk level causing/creating a possible dangerous conditions to pedestri

    Jul 14, 2015 · Penalty $6,000

    Resolve
  • Class - 1

    3301.2 no overhead protection has been provided for front yard at bsmtlevel of adj house known as w 173 st. new bldg is currently more than 40'high and apprx away from adj house. work has not been completed at

    Jul 14, 2015 · Penalty $8,000

    Resolve
  • Class - 1

    Failure to institute/maintain safety equipment measures or temp construction. no guardrails have been provided at 3rd flr windows (exp1)noteguard railing was observeda t lowest floors; 2-openings are apprx 6'l

    Jul 14, 2015 · Penalty $12,000

    Resolve
  • Class - 2

    Failure to provide required "project information panel" at site.nb is a proposed 8 unit md. last nb permit was issued after july of 1013 thus panel is required. rmdy: provide and post "project information pa

    Jul 14, 2015 · Penalty $4,000

    Resolve
  • Class - 2

    Jobsite fence has not been painted pursuant to subsections bc3307.6 and bc 3307.7. note: jobsite fence is not painted "hunter green". notefence permit was issued after 7-1-13 thus hunter green fence paint re

    Jul 14, 2015 · Penalty $4,000

    Resolve
  • Class - 2

    Failure to post dot permit for street closing. 2"x4" barricades have been placed directly in front of job site closing curb lane on w. 173 st. rmdy: provide and post dot permits for closure of curb lane

    Jul 14, 2015 · Penalty $2,500

    Resolve
  • Class - 1

    Work after hours w/o variance permit contrary to 28-105.12.5 noted: masonry installation in progress on job @120841553-01-nb w/o variance on a saturday. rmdy: stop all after hours work.

    Jun 6, 2015 · Penalty $8,000

    Resolve
  • Class - 2

    Job site fence not constructed pursuant to subsection. construction fence installed along exp#2 have many plywood section are loose & seperated from post & loose & seperated from post & leaning(approx 1'-0)out

    May 2, 2015 · Penalty $800

    Resolve

Complaints

  • Unsanitary condition

    Mold

    Aug 8, 2026 · Apt 1R

    Close
  • Water leak

    Slow leak

    Aug 8, 2026 · Apt 1R

    Close
  • Heat/hot water

    Entire building

    Feb 6, 2026 · Apt 2R

    Close
  • Heat/hot water

    Apartment only

    Oct 24, 2025 · Apt 1R

    Close
  • Unsanitary condition

    Pests

    Sep 13, 2025 · Apt HALLS

    Close
  • Heat/hot water

    Apartment only

    Sep 7, 2025 · Apt 4F

    Close
  • Unsanitary condition

    Pests

    Sep 7, 2025 · Apt 4F

    Close
  • Unsanitary condition

    Pests

    Aug 28, 2025 · Apt BLDG

    Close
  • Unsanitary condition

    Garbage/recycling storage

    Aug 23, 2025 · Apt BLDG

    Close
  • Unsanitary condition

    Mold

    Aug 20, 2025 · Apt 1F

    Close
Show 16 more ↓
  • Unsanitary condition

    Mold

    Jul 30, 2025 · Apt 2R

    Close
  • Paint/plaster

    Wall

    Jul 30, 2025 · Apt 2R

    Close
  • General

    Bell/buzzer/intercom

    Jul 30, 2025 · Apt 2R

    Close
  • Appliance

    Electric/gas range

    Jul 30, 2025 · Apt 2R

    Close
  • Unsanitary condition

    Mold

    Jul 30, 2025 · Apt 2R

    Close
  • Unsanitary condition

    Mold

    Nov 3, 2022 · Apt BSMT

    Close
  • Water leak

    Heavy flow

    Nov 5, 2021 · Apt 4F

    Close
  • Paint/plaster

    Wall

    Nov 5, 2021 · Apt 4F

    Close
  • Unsanitary condition

    Mold

    Nov 5, 2021 · Apt 4F

    Close
  • Paint/plaster

    Wall

    Nov 5, 2021 · Apt 4F

    Close
  • Outside building

    Roofing

    Nov 5, 2021 · Apt 4F

    Close
  • Heat/hot water

    Entire building

    Jun 11, 2019 · Apt 1R

    Close
  • General

    Signage missing

    Jan 22, 2019 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Jan 22, 2019 · Apt 2R

    Close
  • General

    Cooking gas

    May 31, 2017 · Apt BLDG

    Close
  • General

    Cooking gas

    May 22, 2017 · Apt 2F

    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 (D9)
Year built
2015
Floors
—
Residential units
8
Building area
6,094 ft²
Lot area
1,875 ft²
Zoning
R7-2
Community board
112
Council district
10
Block / lot
2130 / 57
Assessed value
$349,200
Landmark / historic district
No

HPD registration #144652, last renewed Jul 10, 2025.

Questions about 523 West 173 Street

Who owns 523 West 173 Street?

The owner of record in NYC Department of City Planning PLUTO data is W 173 Group LLC.

Does 523 West 173 Street have violations?

Yes. NYC HPD has recorded 44 housing violations at this property.

Is 523 West 173 Street rent stabilized?

NYC Department of Finance tax bills listed 8 rent-stabilized units here in 2024 (about 100% of its 8 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.

When was 523 West 173 Street built?

City records list 2015 as the year it was built.

How many apartments are in 523 West 173 Street?

It has 8 residential units.

Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.