171 Knickerbocker Avenue
Brooklyn, NY 11237BBL 3-03166-0007Map
Owner of record: 171 Knickerbocker Corp
171 Knickerbocker Avenue is a mixed residential and retail building built in 1931 in Brooklyn, 11237. It has 5 residential units across 3 floors. The owner of record is 171 Knickerbocker Corp. HPD has recorded 44 housing violations here, most recently on May 5, 2026. 33 of the 44 most recent violations are still open.
- HPD violations
- 44
- DOB violations
- 1
- ECB violations
- 1
- HPD complaints
- 18
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 · 44
- 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.
May 5, 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 20, 2025
Open — Info 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 10, 2025
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.
Apr 10, 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 22, 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 23, 2023
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 14, 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.
Feb 25, 2022
Closed — Violation dismissed - BHazardous
Provide sufficient, proper and separate metal receptacles for the deposit of garbage, rubbish and other waste material and arrange for collection and disposal of such material.
Oct 15, 2021
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.
Apr 9, 2021
Closed — Violation dismissed
Show 34 more ↓
- 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
Dec 3, 2019
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 missing at public hall, 1st story
Dec 3, 2019
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
Dec 3, 2019
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 missing at public hall, 1st story
Dec 3, 2019
Open — Nov sent out - ANon-hazardous
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
Dec 3, 2019
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
Dec 3, 2019
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
Dec 3, 2019
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 30, 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 18, 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.
Nov 24, 2017
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 10, 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 9, 2015
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.
Feb 23, 2015
Closed — Violation dismissed - BHazardous
Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment located at apt 2r, 2nd story, 1st apartment from east at south
Nov 23, 2008 · Apt 2R
Open — Nov sent out - CImmediately hazardous
Provide ready access to buildings heating system door locked at boiler room
Nov 23, 2008
Open — Nov sent out - BHazardous
Provide adequate lighting at or near the outside of the front entranceway of the building and keep same burning from sunset every day to sunrise on the day following 100 watts front
Oct 26, 1990
Open — Nov sent out - BHazardous
M/d law abate the nuisance consisting of exposed electrical wires ceiling boiler room cellar
Oct 26, 1990
Open — Nov sent out - BHazardous
Provide adequate light of not less than 60 watts incandescent or equivalent illumination vestibule 1 sty public hall
Oct 26, 1990
Open — Nov sent out - BHazardous
Remove the accumulation of refuse and/or rubbish and maintain in a clean condition the cellar thru out
Oct 26, 1990
Open — Nov sent out - BHazardous
Install and maintain sufficient light or lights of at least 100 watts incandescent or equivalent each, to light adequately from sunset to sunrise the rear yard
Oct 26, 1990
Open — Nov sent out - ANon-hazardous
Section 12 m/d law discontinue the unlawful keeping of north center roof
Oct 26, 1990
Open — Nov sent out - ANon-hazardous
Section 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 cage erected north center roof
Oct 26, 1990
Open — Nov sent out - BHazardous
Provide suitable tight cover for the handhole opening of trap front cellar
Oct 26, 1990
Open — Nov sent out - BHazardous
Provide metal cover masonry pit front cellar
Oct 26, 1990
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective plaster board ceiling rear cellar
Oct 26, 1990
Open — Nov sent out - BHazardous
M/d law abate the nuisance consisting of exposed electric wires ceiling front cellar
Oct 26, 1990
Open — Nov sent out - BHazardous
Replace with new the broken or defective wire glass inserts skylight 3 sty public hall
Oct 26, 1990
Open — Nov sent out - ANon-hazardous
And dept. rules and regulations. scrape and remove rust scales and paint with 2 coats of paint rear fire escapes all stys all parts
Oct 26, 1990
Open — Nov sent out - BHazardous
Fire egress defective. make stationary the iron ladder leading to scuttle opening in roof 3 sty public hall to roof
Oct 26, 1990
Open — Nov sent out - ANon-hazardous
Properly repair the broken or defective mailboxes 1 sty public hall
Oct 26, 1990
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective fire retarded plaster ceiling cellar front and center
Oct 26, 1990
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 1 sty public hall and on boiler room door
Oct 26, 1990
Open — Nov sent out - BHazardous
M/d law abate the nuisance consisting of exposed electrical wires ceiling cellar rear
Oct 26, 1990
Open — Nov sent out - ANon-hazardous
Post and maintain a street number on the front of the dwelling plainly visible from the sidewalk.
Oct 26, 1990
Open — Nov sent out
DOB building violations · 1
- Construction other optional
C-construction other optional
Jan 27, 2014
Dob violation - active
ECB violations · 1
- Non-hazardous
Due to fire the following damage has occured.the party wall on the front of premises between the third and second floor areas has fire damage of approx.32'x32' wood frame medium hard and framing missing
Jan 25, 1993
Resolve
Complaints
- Heat/hot water
Apartment only
Dec 14, 2022 · Apt 3L
Close - Unsanitary condition
Garbage/recycling storage
Oct 20, 2021 · Apt BLDG
Close - Unsanitary condition
Garbage/recycling storage
Oct 13, 2021 · Apt BLDG
Close - Unsanitary condition
Garbage/recycling storage
Aug 26, 2021 · Apt BLDG
Close - Heat/hot water
Apartment only
Feb 18, 2021 · Apt 3L
Close - Heat/hot water
Entire building
Dec 2, 2019 · Apt 2L
Close - Heat/hot water
Apartment only
Dec 6, 2017 · Apt 3L
Close - Unsanitary condition
Pests
Mar 14, 2017 · Apt 2L
Close - Unsanitary condition
Pests
Mar 14, 2017 · Apt 2L
Close - Heat/hot water
Entire building
Feb 4, 2015 · Apt 2R
Close
Show 8 more ↓
- Plumbing
Water supply
Jan 9, 2015 · Apt 1
Close - Plumbing
Water supply
Jan 9, 2015 · Apt 1
Close - Heating
Heat related
Dec 12, 2012 · Apt NA
Close - Heating
Heat related
Nov 20, 2008 · Apt 2R
Close - Appliance
Electric/gas range
Nov 20, 2008 · Apt 2R
Close - Heating
Heat related
Jan 31, 2008 · Apt BLDG
Close - Heating
Heat related
Jan 31, 2008 · Apt 2
Close - Heating
Heat related
Jan 31, 2008 · Apt BLDG
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Mixed residential and retail building (S5)
- Year built
- 1931
- Floors
- 3
- Residential units
- 5
- Building area
- 4,500 ft²
- Lot area
- 2,500 ft²
- Zoning
- R6
- Community board
- 304
- Council district
- 34
- Block / lot
- 3166 / 7
- Assessed value
- $499,500
- Landmark / historic district
- No
HPD registration #343523, last renewed Nov 19, 2024.
Questions about 171 Knickerbocker Avenue
Who owns 171 Knickerbocker Avenue?
The owner of record in NYC Department of City Planning PLUTO data is 171 Knickerbocker Corp.
Does 171 Knickerbocker Avenue have violations?
Yes. NYC HPD has recorded 44 housing violations at this property.
Is 171 Knickerbocker Avenue 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 171 Knickerbocker Avenue built?
City records list 1931 as the year it was built.
How many apartments are in 171 Knickerbocker Avenue?
It has 5 residential units and 6 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.