621 West 51 Street
Manhattan, NY 10019BBL 1-01099-0020Map
Owner of record: Key 621 West 51st Street Realty Company LLC
621 West 51 Street is a walk-up apartment building built in 1901 in Manhattan, 10019. It has 8 residential units across 4 floors. The owner of record is Key 621 West 51st Street Realty Company LLC. HPD has recorded 53 housing violations here, most recently on April 29, 2026. 37 of the 50 most recent violations are still open.
- HPD violations
- 53
- DOB violations
- 8
- ECB violations
- 0
- HPD complaints
- 19
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 · 53
- 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
Open — Nov sent out - 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 17, 2025
Closed — Violation dismissed - CImmediately hazardous
Replace or repair the self-closing the doors that is missing or defective hinges in the entrance located at apt 2w, 3rd story, 1st apartment from north at east
Jun 13, 2025 · Apt 2W
Open — Nov sent out - 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
Open — Nov sent out - 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 22, 2024
Closed — Violation dismissed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 2w, 3rd story, 1st apartment from west at north
Jul 17, 2024 · Apt 2W
Open — Nov sent out - BHazardous
Trace and repair the source and abate the visible mold condition... less than 10 square feet at ceiling in the bathroom located at apt 2w, 3rd story, 1st apartment from west at north original violation 17119560 issued 17-jul-24 has been upgraded to class b per administrative code §27-2017.3a(3)(a) or (b).
Jul 17, 2024 · Apt 2W
Open — Defect letter issued - BHazardous
Properly repair with similar material the broken or defective metal cornice at building front
Jul 17, 2024
Open — Nov sent out - ANon-hazardous
And dept. rules and regulations. scrape and remove rust scales and paint with 2 coats of paint all stories and all components fire escape at building front
Jul 17, 2024
Open — Nov sent out - BHazardous
Repair the leaky and/or defective faucets at shower stall in the bathroom located at apt 2w, 3rd story, 1st apartment from west at north
Jul 17, 2024 · Apt 2W
Open — Nov sent out
Show 40 more ↓
- BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at north wall in the bathroom located at apt 2w, 3rd story, 1st apartment from west at north
Jul 17, 2024 · Apt 2W
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective caulking around shower stall in the bathroom located at apt 2w, 3rd story, 1st apartment from west at north
Jul 17, 2024 · Apt 2W
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective porcelain enamel by method of reglazing at shower stall in the bathroom located at apt 2w, 3rd story, 1st apartment from west at north
Jul 17, 2024 · Apt 2W
Open — Nov sent out - 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 suspended ceiling in the 1st room from north at west located at apt 2w, 3rd story, 1st apartment from west at north
Jul 17, 2024 · Apt 2W
Open — Nov sent out - ANon-hazardous
Trace and repair the source and abate the visible mold condition... less than 10 square feet at ceiling in the bathroom located at apt 2w, 3rd story, 1st apartment from west at north
Jul 17, 2024 · Apt 2W
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.
Apr 1, 2024
Open — Nov sent out - 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 - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 2w, 2nd story
Jul 13, 2023 · Apt 2W
Closed — Violation closed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 1w, 1st story
Jul 13, 2023 · Apt 1W
Closed — Violation closed - BHazardous
Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 2w, 2nd story, 1st apartment from west at north
Jul 13, 2023 · Apt 2W
Open — Nov sent out - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 2w, 2nd story, 1st apartment from west at north
Jul 13, 2023 · Apt 2W
Open — Nov sent out - 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 suspended ceiling in the entire apartment located at apt 2w, 2nd story, 1st apartment from west at north
Jul 13, 2023 · Apt 2W
Open — Nov sent out - BHazardous
Repair or replace the carbon monoxide detecting device(s). missing in the entire apartment located at apt 1w, 1st story, 1st apartment from south at west
Jul 13, 2023 · Apt 1W
Open — Nov sent out - BHazardous
Repair or replace the smoke detector missing in the entire apartment located at apt 1w, 1st story, 1st apartment from south at west
Jul 13, 2023 · Apt 1W
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling in the bathroom located at apt 1w, 1st story, 1st apartment from south at west
Jul 13, 2023 · Apt 1W
Open — Nov sent out - ANon-hazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the bathroom located at apt 1w, 1st story, 1st apartment from south at west
Jun 5, 2023 · Apt 1W
Open — Nov sent out - BHazardous
Repair or replace the carbon monoxide detecting device(s). missing in the entire apartment located at apt 1w, 1st story, 1st apartment from south at west
Jun 5, 2023 · Apt 1W
Open — Nov sent out - BHazardous
Repair or replace the smoke detector missing. in the entire apartment located at apt 1w, 1st story, 1st apartment from south at west
Jun 5, 2023 · Apt 1W
Open — Nov sent out - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective spring hinges in the entrance located at apt 1w, 1st story, 1st apartment from south at west
Jun 5, 2023 · Apt 1W
Open — Nov sent out - 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 16, 2023
Open — Nov sent out - CImmediately hazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at the ceiling in the bathroom located at apt 2w, 2nd story, 1st apartment from west at north
Feb 15, 2023 · Apt 2W
Open — Nov sent out - 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 acoustic ceiling in the 1st room from north located at apt 2w, 2nd story, 1st apartment from west at north
Feb 15, 2023 · Apt 2W
Open — Nov sent out - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective ... in the entrance located at apt 2w, 2nd story, 1st apartment from west at north
Feb 15, 2023 · Apt 2W
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
Open — Nov sent out - 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.
Feb 16, 2022
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
Open — Nov sent out - 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.
Apr 1, 2021
Closed — Violation dismissed - ANon-hazardous
Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box at or near mailbox at public hall, 1st story
Jul 27, 2020
Open — Nov sent out - ANon-hazardous
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
Jul 27, 2020
Open — Nov sent out - CImmediately hazardous
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 at or near mailbox at public hall, 1st story
Jul 27, 2020
Open — Nov sent out - ANon-hazardous
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
Jul 27, 2020
Open — Nov sent out - ANon-hazardous
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
Jul 27, 2020
Open — Nov sent out - 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 at public hall, 1st story
Jul 27, 2020
Open — Nov sent out - ANon-hazardous
Post sign on wall of entrance story bearing name, address including apartment number if any, and telephone number of superintendent, janitor or housekeeper. at public hall, 1st story
Jul 27, 2020
Open — Nov sent out - 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 frame missing at public hall, 1st story
Jul 27, 2020
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective concrete lentil above window 1st window from west at front of building , 3rd story
Jul 27, 2020
Open — Nov sent out - 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 25, 2019
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 - 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
DOB building violations · 8
- Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2016 inspection report
Apr 6, 2018
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2015 inspection report
Feb 24, 2017
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2014 inspection report
Oct 1, 2015
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2013 inspection report
Mar 3, 2015
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2012 inspection report
May 15, 2014
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Aug 29, 1995
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1994
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1993
Dob violation - active
ECB violations · 0
No ECB violations on record
Complaints
- Unsanitary condition
Mold
Jul 11, 2024 · Apt 2W
Close - Unsanitary condition
Pests
Jul 7, 2023 · Apt 2E
Close - Unsanitary condition
Pests
Jun 29, 2023 · Apt 2W
Close - Unsanitary condition
Pests
Jun 5, 2023 · Apt 2W
Close - Water leak
Slow leak
Jun 4, 2023 · Apt 1W
Close - Unsanitary condition
Pests
Jun 4, 2023 · Apt 1W
Close - Plumbing
Toilet
Jun 4, 2023 · Apt 1W
Close - General
Ventilation system
Jun 4, 2023 · Apt 1W
Close - Unsanitary condition
Mold
Jun 4, 2023 · Apt 1W
Close - Unsanitary condition
Mold
Jun 2, 2023 · Apt 1W
Close
Show 9 more ↓
- Unsanitary condition
Pests
May 14, 2023 · Apt 1W
Close - Unsanitary condition
Mold
Feb 12, 2023 · Apt 2W
Close - Unsanitary condition
Mold
Feb 8, 2023 · Apt 1W
Close - Water leak
Heavy flow
Feb 8, 2023 · Apt 1W
Close - Paint/plaster
Ceiling
Feb 8, 2023 · Apt 1W
Close - Plumbing
Water supply
Feb 5, 2023 · Apt 3W
Close - Heat/hot water
Entire building
Jul 25, 2020 · Apt BLDG
Close - Heat/hot water
Apartment only
Mar 19, 2020 · Apt 3W
Close - Electric
Power outage
Mar 28, 2016 · Apt 3W
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C4)
- Year built
- 1901
- Floors
- 4
- Residential units
- 8
- Building area
- 5,040 ft²
- Lot area
- 2,510 ft²
- Zoning
- M2-4
- Community board
- 104
- Council district
- 3
- Block / lot
- 1099 / 20
- Assessed value
- $1,769,400
- Landmark / historic district
- No
HPD registration #103913, last renewed Jul 8, 2022.
Questions about 621 West 51 Street
Who owns 621 West 51 Street?
The owner of record in NYC Department of City Planning PLUTO data is Key 621 West 51st Street Realty Company LLC.
Does 621 West 51 Street have violations?
Yes. NYC HPD has recorded 53 housing violations at this property.
Is 621 West 51 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 621 West 51 Street built?
City records list 1901 as the year it was built.
How many apartments are in 621 West 51 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.