305 Knickerbocker Avenue
Brooklyn, NY 11237BBL 3-03220-0003Map
Owner of record: Liarda, Concetta
305 Knickerbocker Avenue is a mixed residential and retail building built in 1931 in Brooklyn, 11237. It has 6 residential units across 4 floors. The owner of record is Liarda, Concetta. HPD has recorded 4 housing violations here, most recently on March 23, 2023. City tax records listed 6 rent-stabilized apartments here in 2024.
- HPD violations
- 4
- DOB violations
- 6
- ECB violations
- 3
- HPD complaints
- 9
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
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.
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 · 4
- 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 - 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 - 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 - ANon-hazardous
D26-20.08,20.09 adm code file certification of satisfactory installation of smoke detecting device in accordance with h.p.d. rules and regulations.
Oct 28, 1985
Closed — Violation closed
DOB building violations · 6
- Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2014 inspection report
Oct 1, 2015
Dob violation - active - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jun 27, 2012
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 3, 2008
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 19, 2007
Dob violation - dismissed - 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
Aug 16, 1993
Dob violation - active
ECB violations · 3
- Class - 1
Failure to provide unobstructed exit passageway.noted:@ rear fire escapes-terminate on 1 story extension roof w/ no means to access a safe area & passage obstructed by dunnage for a/c system.rem:make safe immed
Apr 2, 2012 · Penalty $1,200
Resolve - Class - 1
Occupancy contrary to that allowed by cofo & dept of bldgs records. illegal rooming units arranged & occupied within apt 2r & 4r inadquate light & ventilation. 2 class "a" apts converted into single room occupa
Mar 30, 2012 · Penalty $2,400
Resolve - Non-hazardous
Failure to provide at least 2 means of egress from room space where required noted apt at northwest location at 2nd floor has no secondary means of egress which is required for a multiple dwelling causing a haz
Aug 4, 2005 · Penalty $480
Resolve
Complaints
- Heat/hot water
Apartment only
Jul 24, 2024 · Apt 2L
Close - Nonconst
Smoke detector
Apr 11, 2012 · Apt 4R
Close - General
Mold
Apr 3, 2012 · Apt 2R
Close - Nonconst
Carbon monoxide
Apr 3, 2012 · Apt 2R
Close - Nonconst
Smoke detector
Apr 3, 2012 · Apt 2R
Close - Nonconst
Carbon monoxide
Apr 3, 2012 · Apt 4R
Close - Nonconst
Smoke detector
Apr 3, 2012 · Apt 4R
Close - Paint/plaster
Ceiling
Oct 24, 2005 · Apt 1L
Close - Paint/plaster
Wall
Oct 24, 2005 · Apt 1L
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Mixed residential and retail building (S5)
- Year built
- 1931
- Floors
- 4
- Residential units
- 6
- Building area
- 6,500 ft²
- Lot area
- 2,500 ft²
- Zoning
- R6
- Community board
- 304
- Council district
- 34
- Block / lot
- 3220 / 3
- Assessed value
- $436,950
- Landmark / historic district
- No
HPD registration #349514, last renewed Oct 17, 2025.
Questions about 305 Knickerbocker Avenue
Who owns 305 Knickerbocker Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Liarda, Concetta.
Does 305 Knickerbocker Avenue have violations?
Yes. NYC HPD has recorded 4 housing violations at this property.
Is 305 Knickerbocker Avenue rent stabilized?
NYC Department of Finance tax bills listed 6 rent-stabilized units here in 2024 (about 100% of its 6 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.
When was 305 Knickerbocker Avenue built?
City records list 1931 as the year it was built.
How many apartments are in 305 Knickerbocker Avenue?
It has 6 residential units and 7 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.