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4520 12 Avenue

Brooklyn, NY 11219BBL 3-05615-0048Map

Owner of record: Boro Park Portfolio Owner LLC

4520 12 Avenue is an elevator apartment building built in 1940 in Brooklyn, 11219. It has 48 residential units across 6 floors. The owner of record is Boro Park Portfolio Owner LLC. HPD has recorded 693 housing violations here, most recently on October 17, 2026. 46 of the 50 most recent violations are still open. City tax records listed 47 rent-stabilized apartments here in 2024.

HPD violations
693
DOB violations
18
ECB violations
16
HPD complaints
647

What to know

Concern
5 open Class C

Immediately hazardous issues among recent violations are still open.

Watch
Last violation Oct 17, 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
47
About 98% of the building's 48 apartments
Up from 46 in 2018

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 · 693

  • B

    Remove all encumbrances consisting of household item, multiple baby carriages at public hall, 1st story

    Oct 17, 2026

    Open — Nov sent out
  • B

    Properly repair or replace the broken or defective intercom system at east wall in the private hallway located at apt c3, 3rd story, 1st apartment from south at west

    Oct 8, 2026 · Apt C3

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at west wall in the 2nd room from east at north located at apt c3, 3rd story, 1st apartment from south at west

    Oct 8, 2026 · Apt C3

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the bathroom located at apt c3, 3rd story, 1st apartment from south at west

    Oct 8, 2026 · Apt C3

    Open — Nov sent out
  • B

    Properly repair the source and abate the evidence of a water leak at ceiling in the bathroom located at apt c3, 3rd story, 1st apartment from south at west

    Oct 8, 2026 · Apt C3

    Open — Nov sent out
  • B

    Properly repair or replace the broken or defective sink cabinet in the kitchen located at apt c3, 3rd story, 1st apartment from south at west

    Oct 8, 2026 · Apt C3

    Open — Nov sent out
  • B

    Trace and repair the source and abate the visible mold condition... observed approximately 10 sq.ft at ceiling in the bathroom located at apt c3, 3rd story, 1st apartment from south at west

    Oct 8, 2026 · Apt C3

    Open — Notice of issuance sent to tenant
  • B

    Properly repair with similar material the broken or defective electrical outlet at south wall in the private hallway located at apt c3, 3rd story, 1st apartment from south at west

    Oct 8, 2026 · Apt C3

    Open — Nov sent out
  • B

    Properly repair with similar material the broken or defective wood base cabinet door at east in the kitchen located at apt f8, 6th story, 1st apartment from north at east

    Sep 11, 2026 · Apt F8

    Open — Nov sent out
  • B

    Properly repair with similar material the broken or defective grout and mortar joints at south, east and west walls in the bathroom located at apt f8, 6th story, 1st apartment from north at east

    Sep 11, 2026 · Apt F8

    Open — Nov sent out
Show 40 more ↓
  • B

    Properly repair the source and abate the evidence of a water leak at south wall in the 6th room from east located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at south wall in the 6th room from east located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at west wall in the kitchen located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Properly repair the source and abate the evidence of a water leak at ceiling in the 1st room from east located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 1st room from east located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Properly repair or replace the broken or defective lower counter balance at the south 3 window in the 1st room from east located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Properly repair or replace the broken or defective electrical wall outlet at west in the private hallway located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Properly repair or replace the broken or defective intercommunication system from builidng front to south wall panel in the foyer located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Remove all obstructions and repair all defects in wasteline at washbasin in the bathroom located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Repair the leaky and/or defective faucets at bathtub in the bathroom located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Trace and repair the source and abate the visible mold condition... greater then 10 sq feet at ceiling in the bathroom located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Notice of issuance sent to tenant
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 2nd bathroom from east located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Properly repair the source and abate the evidence of a water leak at ceiling in the 2nd bathroom from east located at apt c3, 3rd story, 1st apartment from south at west

    Sep 11, 2026 · Apt C3

    Open — Nov sent out
  • B

    Remove all encumbrances consisting of strollers and bicycles at public hall, 3rd story

    Sep 11, 2026

    Open — Nov sent out
  • B

    Remove all encumbrances consisting of strollers and bicycles at public hall, 2nd story

    Sep 11, 2026

    Open — Nov sent out
  • B

    Remove all encumbrances consisting of stollers and bicycles and household items at public hall, 1st story

    Sep 11, 2026

    Open — Nov sent out
  • C

    Replace or repair the self-closing doors that is missing or defective latch set at compactor closet, 5th story

    Sep 11, 2026

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective latch set at compactor closet, 4th story

    Sep 11, 2026

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective latch set at compactor closet, 3rd story

    Sep 11, 2026

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective latch set at compactor closet, 2nd story

    Sep 11, 2026

    Closed — Violation closed
  • B

    Fire escape defective. adjust the dropladder so that it will slide easily in the guide rods in down position at west fire escape at fire escape

    Sep 11, 2026

    Open — Nov certified on time
  • B

    Fire escape defective. adjust the dropladder so that it will slide easily in the guide rods in down position at building front at fire escape

    Sep 11, 2026

    Open — Nov certified on time
  • C

    Replace or repair the self-closing doors that is missing or defective latch set in the entrance located at apt f8, 6th story, 1st apartment from north at east

    Sep 11, 2026 · Apt F8

    Open — First no access to re- inspect violation
  • B

    Properly repair or replace the broken or defective intercommunication system from building front to north wall panel in the foyer located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Nov sent out
  • B

    Trace and repair the source and abate the visible mold condition... more than 10 sq feet but less than 30 sq feet observed at the ceiling and east wall in the 4th room from east located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Notice of issuance sent to tenant
  • B

    Properly repair or replace the broken or defective lower counter balance at the east 1 window in the 4th room from east located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Nov sent out
  • B

    Properly repair or replace the broken or defective lower counter balance at the north 1 and north 2 windows in the 4th room from east located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Nov sent out
  • B

    Properly repair with similar material the broken or defective porcelain enamel glaze at bathtub in the bathroom located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Nov sent out
  • B

    Repair the leaky and/or defective faucets at bathtub in the bathroom located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Nov sent out
  • B

    Properly repair with similar material the broken or defective ceramic wall tiles at west in the bathroom located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Nov sent out
  • C

    Trace and repair the source and abate the visible mold condition... greater then 30 sq feet at the ceiling, west and north walls in the bathroom located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Notice of issuance sent to tenant
  • C

    Replace or repair the self-closing doors that is missing or defective latch set in the entrance located at apt b7, 2nd story, 1st apartment from west at north

    Sep 11, 2026 · Apt B7

    Open — Violation will be reinspected
  • B

    Properly repair with similar material the broken or defective marble saddle at entrance in the bathroom located at apt f8, 6th story, 1st apartment from north at east

    Sep 11, 2026 · Apt F8

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color the north and south wall and ceiling in the foyer located at apt d7, 4th story, 1st apartment from south at west

    Aug 27, 2026 · Apt D7

    Open — Civ14 mailed
  • C

    Trace and repair the source and abate the visible mold condition... greater than 30 square feet at south , north , east and west wall and ceiling and at east 1 door frame and at window frame at west wall in the bathroom located at apt d7, 4th story, 1st apartment from south at west

    Aug 27, 2026 · Apt D7

    Open — Civ14 mailed
  • B

    Properly repair the source and abate the evidence of a water leak at ceiling in the 4th room from north located at apt d7, 4th story, 1st apartment from south at west

    Aug 27, 2026 · Apt D7

    Open — Civ14 mailed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling in the 4th room from north located at apt d7, 4th story, 1st apartment from south at west

    Aug 27, 2026 · Apt D7

    Open — Civ14 mailed
  • A

    Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the 1st room from north, the bathroom , the 4th room from north, the foyer located at apt d7, 4th story, 1st apartment from south at west

    Aug 27, 2026 · Apt D7

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department the 1st closet from south at west wall door frame, 1st closet from south at west wall door in the private hallway located at apt d7, 4th story, 1st apartment from south at west

    Aug 27, 2026 · Apt D7

    Open — Nov sent out
  • C

    Correct the lead-based paint hazard - paint that tested positive for lead content and that is peeling or on a deteriorated subsurface - using work practices set forth in 28 rcny §11-06(b)(2) east wall, west wall in the kitchen located at apt d7, 4th story, 1st apartment from south at west

    Aug 27, 2026 · Apt D7

    Open — Certification postponment granted

DOB building violations · 18

  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Jun 12, 2019

    Dob violation - resolved
  • Elevator elevatorrequired

    Cease use no access to motor room

    Jan 29, 2018

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Jul 25, 2016

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Oct 23, 2015

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Nov 3, 2014

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Aug 23, 2013

    Dob violation - resolved
  • Construction other optional

    C-construction other optional

    Dec 14, 2011

    Dob violation - active
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Dec 14, 2011

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Dec 23, 2009

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Dec 23, 2009

    Dob violation - resolved
Show 8 more ↓
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Mar 7, 2008

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Jun 19, 2007

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Jan 7, 2006

    Dob violation - resolved
  • Elevator elevatoroptional

    Ll1081-local law 10/81 - elevator elevatoroptional

    Oct 1, 2005

    Dob violation - dismissed
  • Elevator elevatorrequired

    3p2987

    Sep 5, 2002

    Dob violation - resolved
  • Elevator elevatorrequired

    3p2987

    Sep 7, 2001

    Dob violation - resolved
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Sep 16, 1997

    Dob violation - dismissed
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Oct 22, 1994

    Vp*-violation unserved ecb- dismissed

ECB violations · 16

  • Class - 2

    Atoi, observed the side yard at exposure #2 being used as an open off-street accessory parking area in violation of zr 25-621. observed one blue toyota rav4 bearing connecticut registration and one gmc bearing

    Jul 28, 2026 · Penalty $1,250

    Active
  • Class - 1

    Atoi, observed failure to maintain the building and all parts thereof in a code-compliant manner. at exposure #2, an approximately 18-ft.-wide illegal curb cut had been created to provide vehicular access to an

    Jul 28, 2026 · Penalty $5,000

    Active
  • Class - 1

    F.t.m.b. and all parts a 6-story walk-up multi-dwelling building, fire escape front ac unit installed 4th fl. fire escape expose. 1& 2 components, including stair treads, landings, guardrails, and structural me

    Jul 28, 2026 · Penalty $5,000

    Active
  • Class - 2

    Expired fire extinguisher. adjust basement braille tag to ada specifications.

    Mar 12, 2024

    Resolve
  • Class - 2

    Repair 6th floor hall station position indicator., provide up to date elevator maintenance log book ( last entry 10/2022).

    Dec 29, 2022 · Penalty $312

    Resolve
  • Class - 2

    Clean pit. clean underside platform. provide in case of fire signs where missing. adjust door checks where needed. expired fire extinguisher. seal hoist machine leaks. expired brake maint tag

    Jul 17, 2019

    Resolve
  • Class - 2

    13l10,100m7,39q3,70o2,59bb7,57bb11,40r7,42g11,40i10. (13l)repair or replace. (100m)"in case of fire" signage. (37q)light. (59bb)brake maint tag. (40r)old hoist motor. (42g)unreadable fuses. (40i)door threshold.

    May 15, 2018

    Resolve
  • Class - 2

    Failure to maintain exterior bldg west elevation,exp#3(rear)observed blocks of wood under a/c units improperly installed.south elevation exp#2 observed cracks &displacement in parapet.blocks of wood under a/c u

    Aug 9, 2016 · Penalty $500

    Resolve
  • Class - 2

    Notification.noted:@ time of insp.there was no hanging equipment/c-hooks on site.failure to notify the dept.24-48hrs prior to removal of suspended scaffolds.confirmation #3100641 with a start date of 4/17/15.re

    Apr 28, 2015 · Penalty $400

    Active
  • Class - 1

    Cu:59l10.26r10,09i10,15d06,39x10,35q03,16t07,56y10,56o02,61r10,77x10.cease use (59l)brake pin walked out,no clip call 212-566-5539 for appointment.(26r)must be openable from cartop w/o tools.(39x)light.(35q)car

    Dec 13, 2010 · Penalty $1,000

    Resolve
Show 6 more ↓
  • Class - 2

    70o2.77x10.53b14.16h11.01b10.02b10.70o clean pit 77x light 53b shorten16b replace worn pivots where needed 52b provide crosby for spin-outs 39q plank switch wires 32h worn car shoes 56y seal leaks 69m data plat

    Mar 12, 2010

    Resolve
  • Class - 3

    10h11.05j01.53y02.53b14.70o0239y02.40p17.41t07.10m07.02b10.10h replac 05 eliminate gap between door & return post 53yb clean for proper inspection & shorten 70o clean pit 39y clean car top 40p no access to m.r

    Sep 22, 2008 · Penalty $100

    Resolve
  • Non-hazardous

    21j01,38o02,55b07,66o02. (21-j-01) "2" fl interlock shuts car down in flight. (55-b-07) gear case low on oil.

    Jan 10, 2007 · Penalty $180

    Resolve
  • Non-hazardous

    19m07/18m07/62o02/52l11/74b07. 19m covers missing 2nd and 4fls. 18m guarn missing 2nd fl. 52l gear ply. 74b post cert in car as per rule 27-1004a or 1004b.

    Jan 7, 2003

    Resolve
  • Non-hazardous

    35m07,50f11,35r09,08v01,52d11, 35m=no light in m.r 35r=remove old anteners from stairs to motor room 52d=secure brake wire

    Feb 16, 2000

    Resolve
  • Non-hazardous

    03m,35p. 03 car flooring tiles missing and broken. 35 provide access tomotor room to complete inspection.

    Feb 28, 1994

    Resolve

Complaints

  • General

    Bell/buzzer/intercom

    Oct 21, 2026 · Apt C6

    Open
  • General

    Bell/buzzer/intercom

    Oct 21, 2026 · Apt C6

    Open
  • Heat/hot water

    Entire building

    Oct 21, 2026 · Apt C6

    Open
  • Heat/hot water

    Entire building

    Oct 17, 2026 · Apt BLDG

    Close
  • Plumbing

    Bathtub/shower

    Oct 15, 2026 · Apt B6

    Open
  • Paint/plaster

    Wall

    Oct 1, 2026 · Apt C3

    Close
  • Paint/plaster

    Ceiling

    Oct 1, 2026 · Apt C3

    Close
  • General

    Cabinet

    Oct 1, 2026 · Apt C3

    Close
  • Water leak

    Slow leak

    Oct 1, 2026 · Apt C3

    Close
  • Unsanitary condition

    Mold

    Oct 1, 2026 · Apt C3

    Close
Show 40 more ↓
  • Safety

    Fire escape

    Sep 24, 2026 · Apt BLDG

    Close
  • Paint/plaster

    Ceiling

    Jul 27, 2026 · Apt C3

    Close
  • Unsanitary condition

    Garbage/recycling storage

    Jul 27, 2026 · Apt BLDG

    Close
  • Unsanitary condition

    Mold

    Jul 27, 2026 · Apt C3

    Close
  • Elevator

    Maintenance

    Jul 27, 2026 · Apt BLDG

    Close
  • Appliance

    Electric/gas range

    Jul 20, 2026 · Apt B6

    Close
  • Appliance

    Electric/gas range

    Jul 20, 2026 · Apt B6

    Close
  • Door/window

    Door

    Jul 6, 2026 · Apt B6

    Close
  • Appliance

    Electric/gas range

    Jul 6, 2026 · Apt B6

    Close
  • Paint/plaster

    Wall

    Jul 6, 2026 · Apt B6

    Close
  • Unsanitary condition

    Pests

    Jul 6, 2026 · Apt B6

    Close
  • Paint/plaster

    Wall

    Jul 6, 2026 · Apt B6

    Close
  • Unsanitary condition

    Mold

    Jul 6, 2026 · Apt B6

    Close
  • Unsanitary condition

    Pests

    Jul 6, 2026 · Apt B6

    Close
  • Plumbing

    Basin/sink

    Jul 1, 2026 · Apt B6

    Close
  • Unsanitary condition

    Pests

    Jul 1, 2026 · Apt B6

    Close
  • Water leak

    Slow leak

    Jul 1, 2026 · Apt B6

    Close
  • Unsanitary condition

    Pests

    Jul 1, 2026 · Apt B6

    Close
  • Door/window

    Door

    Jul 1, 2026 · Apt B6

    Close
  • Unsanitary condition

    Mold

    Jul 1, 2026 · Apt B6

    Close
  • Appliance

    Electric/gas range

    Jul 1, 2026 · Apt B6

    Close
  • Paint/plaster

    Window/frame

    Jul 1, 2026 · Apt B6

    Close
  • Paint/plaster

    Wall

    Jul 1, 2026 · Apt B6

    Close
  • Plumbing

    Water supply

    Jun 25, 2026 · Apt B6

    Close
  • Unsanitary condition

    Mold

    May 11, 2026 · Apt C3

    Close
  • Heat/hot water

    Entire building

    Apr 27, 2026 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Apr 27, 2026 · Apt BLDG

    Close
  • General

    Bell/buzzer/intercom

    Apr 27, 2026 · Apt C6

    Close
  • Heat/hot water

    Entire building

    Apr 27, 2026 · Apt C6

    Close
  • Plumbing

    Water supply

    Apr 26, 2026 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Apr 26, 2026 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Apr 25, 2026 · Apt 6

    Close
  • Heat/hot water

    Entire building

    Apr 22, 2026 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Apr 22, 2026 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Apr 21, 2026 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Apr 19, 2026 · Apt C6

    Close
  • Heat/hot water

    Entire building

    Apr 7, 2026 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Apr 7, 2026 · Apt A3

    Close
  • Heat/hot water

    Entire building

    Apr 6, 2026 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Apr 5, 2026 · Apt BLDG

    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 (D1)
Year built
1940
Floors
6
Residential units
48
Building area
54,000 ft²
Lot area
10,000 ft²
Zoning
R6
Community board
312
Council district
44
Block / lot
5615 / 48
Assessed value
$1,502,550
Landmark / historic district
No

HPD registration #338971, last renewed Jun 11, 2026.

Questions about 4520 12 Avenue

Who owns 4520 12 Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Boro Park Portfolio Owner LLC.

Does 4520 12 Avenue have violations?

Yes. NYC HPD has recorded 693 housing violations at this property.

Is 4520 12 Avenue rent stabilized?

NYC Department of Finance tax bills listed 47 rent-stabilized units here in 2024 (about 98% of its 48 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.

When was 4520 12 Avenue built?

City records list 1940 as the year it was built.

How many apartments are in 4520 12 Avenue?

It has 48 residential units.

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