4648 Broadway
Manhattan, NY 10040BBL 1-02172-0032Map
Owner of record: 4640 Broadway LLC
4648 Broadway is a walk-up apartment building built in 1916 in Manhattan, 10040. It has 18 residential units across 5 floors. The owner of record is 4640 Broadway LLC. HPD has recorded 1,085 housing violations here, most recently on October 6, 2026. 49 of the 50 most recent violations are still open. City tax records listed 41 rent-stabilized apartments here in 2024.
- HPD violations
- 1,085
- DOB violations
- 12
- ECB violations
- 22
- HPD complaints
- 1,609
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
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 · 1,085
- CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 44, 4th story, 1st apartment from south at west
Oct 6, 2026 · Apt 44
Open — Notice of issuance sent to tenant - BHazardous
Properly repair with similar material the broken or defective rotted wood bottom shelf at sink base cabinet in the kitchen located at apt 44, 4th story, 1st apartment from south at west
Oct 6, 2026 · Apt 44
Open — Nov sent out - BHazardous
Repair the leaky and/or defective faucets at sink in the kitchen located at apt 44, 4th story, 1st apartment from south at west
Oct 6, 2026 · Apt 44
Open — Nov sent out - BHazardous
Properly repair or replace the broken or defective spring balance at lower window sash in the 2nd room from north at west located at apt 44, 4th story, 1st apartment from south at west
Oct 6, 2026 · Apt 44
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 44, 4th story, 1st apartment from south at west
Oct 6, 2026 · Apt 44
Open — Notice of issuance sent to tenant - CImmediately hazardous
Provide a safe and adequate supply of electric service to the fixtures throughout in the entire apartment located at apt 52, 5th story, 1st apartment from south at west
Sep 30, 2026 · Apt 52
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 24, 2nd story, 1st apartment from south at west
Sep 30, 2026 · Apt 24
Open — Notice of issuance sent to tenant - ANon-hazardous
Properly repair with similar material the broken or defective wood floor in the private hallway located at apt 24, 2nd story, 1st apartment from south at west
Sep 30, 2026 · Apt 24
Open — Nov sent out - ANon-hazardous
Properly repair with similar material the broken or defective wood floor in the 3rd room from north located at apt 24, 2nd story, 1st apartment from south at west
Sep 30, 2026 · Apt 24
Open — Nov sent out - BHazardous
Properly repair or replace the broken or defective counter balance at lower sash winodw at west wall in the 3rd room from north located at apt 24, 2nd story, 1st apartment from south at west
Sep 30, 2026 · Apt 24
Open — Nov sent out
Show 40 more ↓
- BHazardous
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 24, 2nd story, 1st apartment from south at west
Sep 30, 2026 · Apt 24
Open — Nov sent out - BHazardous
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 24, 2nd story, 1st apartment from south at west
Sep 30, 2026 · Apt 24
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 24, 2nd story, 1st apartment from south at west
Sep 30, 2026 · Apt 24
Open — Notice of issuance sent to tenant - BHazardous
Properly repair with similar material the broken or defective porcelain finish by method of reglazing at bathtub in the bathroom located at apt 52, 5th story, 1st apartment from west at north
Sep 15, 2026 · Apt 52
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 52, 5th story, 1st apartment from west at north
Sep 15, 2026 · Apt 52
Open — Defect letter issued - BHazardous
Refit lower sash at 1st window from west at north wall in the 2nd room from east located at apt 52, 5th story, 1st apartment from west at north
Sep 15, 2026 · Apt 52
Open — Nov sent out - BHazardous
Properly repair or replace the broken or defective electrical outlet at east wall in the 4th room from east located at apt 52, 5th story, 1st apartment from west at north
Sep 15, 2026 · Apt 52
Open — Nov sent out - BHazardous
Repair the leaky and/or defective faucets at sink in the kitchen located at apt 52, 5th story, 1st apartment from west at north
Sep 15, 2026 · Apt 52
Open — Nov sent out - ANon-hazardous
Properly repair with similar material the broken or defective sagging wood floor in the foyer located at apt 52, 5th story, 1st apartment from west at north
Sep 15, 2026 · Apt 52
Open — Nov sent out - CImmediately hazardous
Provide a safe and adequate supply of electric service to the fixtures at all walls and ceilings throughout in the entire apartment located at apt 52, 5th story, 1st apartment from west at north
Sep 15, 2026 · Apt 52
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 24, 2nd story, 1st apartment from south at west
Sep 15, 2026 · Apt 24
Open — Not complied with - ANon-hazardous
Reset, so as to secure a proper and tight connection, the water closet bowl in the bathroom located at apt 24, 2nd story, 1st apartment from south at west
Sep 15, 2026 · Apt 24
Open — Nov sent out - BHazardous
Nyc fire code § 703.1.3; nyc fire code § 703.2: adjust door to prevent gaps between the top and side edges of door and door jamb exceeding the maximum allowable clearance of 1/8 of an inch and maximum allowable clearance of 3/4 of an inch between the door bottom and sill at ... in the entrance located at apt 24, 2nd story, 1st apartment from south at west
Sep 15, 2026 · Apt 24
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 54, 5th story, 1st apartment from south at west
Sep 1, 2026 · Apt 54
Open — First no access to re- inspect violation - CImmediately hazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 1st room from north at west located at apt 54, 5th story, 1st apartment from south at west
Sep 1, 2026 · Apt 54
Open — Civ14 mailed - BHazardous
Properly repair with similar material the broken or defective ceramic floor tiles at public hall, 1st story, section ''4648''
Aug 17, 2026
Open — Nov certified on time - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 54, 5th story, 1st apartment from south at west , section ''4648''
Aug 17, 2026 · Apt 54
Open — Violation will be reinspected - BHazardous
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 54, 5th story, 1st apartment from south at west , section ''4648''
Aug 17, 2026 · Apt 54
Open — Civ14 mailed - BHazardous
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 54, 5th story, 1st apartment from south at west , section ''4648''
Aug 17, 2026 · Apt 54
Open — Civ14 mailed - CImmediately hazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 1st room from north located at apt 54, 5th story, 1st apartment from south at west , section ''4648''
Aug 17, 2026 · Apt 54
Open — Civ14 mailed - BHazardous
Properly repair with similar material the broken or defective ceramic floor tiles at public hall, 1st story, section ''4646''
Aug 17, 2026
Open — Nov certified on time - BHazardous
Properly repair with similar material the broken or defective marble tread 3rd from bottom up at public hall stairs, 3rd story
Aug 17, 2026
Open — Nov certified on time - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the kitchen located at apt 48, 4th story, 1st apartment from east at south , section ''4646''
Aug 17, 2026 · Apt 48
Open — Civ14 mailed - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 48, 4th story, 1st apartment from east at south , section ''4646''
Aug 17, 2026 · Apt 48
Open — Violation will be reinspected - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 48, 4th story, 1st apartment from east at south , section ''4646''
Aug 17, 2026 · Apt 48
Open — Violation will be reinspected - BHazardous
Properly repair or replace the broken or defective entrance door in the bathroom located at apt 48, 4th story, 1st apartment from east at south , section ''4646''
Aug 17, 2026 · Apt 48
Open — Civ14 mailed - ANon-hazardous
Properly repair or replace the broken or defective bell buzzer intercom system from the building entrance door to the apartment panel at south wall in the kitchen located at apt 48, 4th story, 1st apartment from east at south , section ''4646''
Aug 17, 2026 · Apt 48
Open — Nov sent out - ANon-hazardous
Paint with light colored paint to the satisfaction of this department at west wall in the bathroom located at apt 48, 4th story, 1st apartment from east at south , section ''4646''
Aug 17, 2026 · Apt 48
Open — Nov sent out - ANon-hazardous
Trace and repair the source and abate the visible mold condition... less than 10sq feet at west wall in the bathroom located at apt 48, 4th story, 1st apartment from east at south , section ''4646''
Aug 17, 2026 · Apt 48
Open — Notice of issuance sent to tenant - BHazardous
Properly secure the loose wash basin in the bathroom located at apt 54, 5th story, 1st apartment from south at west
Aug 13, 2026 · Apt 54
Open — Civ14 mailed - CImmediately hazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 1st room from north at west located at apt 54, 5th story, 1st apartment from south at west
Aug 13, 2026 · Apt 54
Open — Civ14 mailed - ANon-hazardous
Paint with light colored paint to the satisfaction of this department at ceiling and all walls in the private hallway located at apt 45, 4th story, 2nd apartment from west at north , section ''4646''
Jul 17, 2026 · Apt 45
Open — First no access to re- inspect violation - CImmediately hazardous
Properly repair or replace the broken or defective cracked inner glass at upper sash window at [ intermediate landing 2nd story public hallway stairs ] , section ''4646''
Jul 17, 2026
Closed — Violation dismissed - ANon-hazardous
Paint with light colored paint to the satisfaction of this department at ceiling and all walls in the foyer located at apt 45, 4th story, 2nd apartment from west at north , section ''4646''
Jul 17, 2026 · Apt 45
Open — First no access to re- inspect violation - ANon-hazardous
Paint with light colored paint to the satisfaction of this department at ceiling and all walls in the kitchen located at apt 45, 4th story, 2nd apartment from west at north , section ''4646''
Jul 17, 2026 · Apt 45
Open — First no access to re- inspect violation - ANon-hazardous
Reset, so as to secure a proper and tight connection, the water closet bowl in the bathroom located at apt 45, 4th story, 2nd apartment from west at north , section ''4646''
Jul 17, 2026 · Apt 45
Open — First no access to re- inspect violation - ANon-hazardous
Paint with light colored paint to the satisfaction of this department at ceiling and all walls in the bathroom located at apt 45, 4th story, 2nd apartment from west at north , section ''4646''
Jul 17, 2026 · Apt 45
Open — First no access to re- inspect violation - BHazardous
Replace with new the missing wash basin cabinet in the bathroom located at apt 21, 2nd story, 2nd apartment from west at north
Jul 9, 2026 · Apt 21
Open — First no access to re- inspect violation - BHazardous
Repair, replace or provide an approved and operational smoke detecting device, installed in accordance with department of buildings rules and regulations inoperable in the entire apartment located at apt 21, 2nd story, 2nd apartment from west at north
Jul 9, 2026 · Apt 21
Open — First no access to re- inspect violation - BHazardous
Properly repair with similar material the broken or defective grout around bathtub in the bathroom located at apt 21, 2nd story, 2nd apartment from west at north
Jul 9, 2026 · Apt 21
Open — First no access to re- inspect violation
DOB building violations · 12
- Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
Aug 2, 2019
Dob violation - dismissed - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
May 2, 2019
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Apr 22, 2015
Dob violation - dismissed - Construction other optional
Failure to comply w/commissioner's vacate order #28/2015 pt @ cellar re-occupied bedroom @ northwest corner of building, 1 male sleeping just awoken from bed, room has no windows, light or second means of egress
Apr 9, 2015
Dob violation - active - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jan 14, 2015
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jan 14, 2015
Dob violation - dismissed - Immediate emergency anythingoptional
Imegncy-immediate emergency anythingoptional
Apr 30, 2010
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 19, 2003
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Feb 27, 2001
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 16, 1999
Dob violation - dismissed
Show 2 more ↓
- Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Feb 10, 1997
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1993
Dob violation - dismissed
ECB violations · 22
- Class - 1
Work w/o a permit. noted: at time of inspection observed water,waste & gas lines removed in kitchen area. observed in cellar of location. remedy: obtain permits.
Mar 8, 2019
Resolve - Class - 2
Unapproved/unsafe/unsuitable electrical equipment,appuratus,materials,devices,appliances or wiring in use. the entire bsmt: open defective wiring are in use,defective lighting fixtures are in case(fluoresent
Sep 15, 2015 · Penalty $400
Resolve - Class - 1
Electrical work w/o a permit. apt 35 sub panel,branch circuit wiring,lighting fixtures for bedroom. not on file. remedy: obtain permit.
Sep 15, 2015 · Penalty $800
Resolve - Class - 2
Unapproved/unsafe/unsuitable electrical equipment,appuratus,materials,devices,appliances or wiring in use. apt 35 open defective wiring are in use defective lights are in use,objective receptacles outlets are
Sep 15, 2015 · Penalty $400
Resolve - Class - 2
Failure to properly bond electrical systems. service switches:200amp 400amp as neutral bond one not bondedf to enclosures. rmdy: provide proper bonding.
Sep 15, 2015 · Penalty $750
Active - Class - 1
Failure to provide unobstructed exit passageway.noted: illegal cellar apartment,located north and bordered by elwood st/cellar elwood st entrance passagewayhas no accessible window.the passage from the bedroom
Feb 13, 2015 · Penalty $1,000
Resolve - Class - 1
Occupancy contrary to that allowed by the c of o or bldg dept records.noted: mor #10529 indicates a multiple dwelling w/43 apts. an additional illegal basement (northside) apt now makes it 44 apts.
Jan 23, 2015
Resolve - Class - 1
Failure to maintain bldg in code-compliant manner. noted: illegal apt at northside of basement (cellar) has not secondary means of egress and no windows.this does not only poses a fire hazard but also exposes
Jan 23, 2015
Resolve - Class - 2
Failure to comply w/the commissioner's order to file a c of c w/the dept of buildings for notice of violation #35028920p issued on 12/5/14 pursuant to 28-204.4 & 1rcny 102-01. remedy: file a c of c.
Jan 14, 2015
Resolve - Class - 1
Failure to comply w/the commissioner's order contained in notice of violation #34848149h issued on 10/14/14. erected full height partition walls,installed plumbing & electric to create a class'a' apt in basemen
Jan 14, 2015
Resolve
Show 12 more ↓
- Class - 1
Failure to maintain bldg in code compliant manner. noted: water "pooling" in cellar,poses a significant public health menace. the water froma source above has damaged 1st fl ceiling. remedy: determine source of
Dec 5, 2014
Resolve - Class - 1
Failure to comply w/the commissioner's order contained in notice of violation #34848149h issued on 10/14/14. erected full height partition walls,installed plumbing & electric to create class'a' apt in basement,
Dec 4, 2014
Resolve - Class - 2
Failure to comply w/the commissioner's order to file a c of c w/the dept of buildings for notice of violation #34848148x issued on 10/14/14 pursuant to 28-204.4 & 1rcny 102-01. remedy: file a c of c.
Dec 4, 2014
Resolve - Class - 1
Occupancy contrary to that allowed by the certificate of occupancy or bldg dept.records.mor#10529 indicates a multiple dwelling with 43 apts.noted:now converted to 44 apts.bmmt northside with a class 'a'apt.wit
Oct 14, 2014
Resolve - Class - 1
Work w/o a permit.work noted:bsmt.northside erected full height partition walls to create rooms.intalled water & waste lines for a 3pc bath (sink,toilet,tub/shower)residential sink.also noted:installed a gas li
Oct 14, 2014
Resolve - Class - 2
B254,34b,50. 50- freshh air sail switch runs constantly & is not interlocked w/the boiler. repair/replace sail switch. 34b- replace/repair boiler room door.
Dec 15, 2012
Resolve - Class - 2
B254 15 16 32a 42 48a 50a 50b 50c. 50a-defective draft regulator. 50b-circulator pump clogged, 48, 50b-pipping improperly supported w/strings 50c-missing pully guard @ transfer pump repair/replace defective boi
Dec 2, 2011 · Penalty $250
Resolve - Class - 2
Failure to provide approved accepted plans at job site at time of inspection. noted: no approved plans for sidewalk shed at job site at timeof inspection shed installed at exposure # #2 approx 350 linear feet.
Jul 31, 2010 · Penalty $500
Resolve - Class - 1
Failure to maintain. defect: 1) brick work is cracked and bulging outward over public sidewalk at southwest corner of parapet. 2) leaning parapet cracked, brickwork and eroded mortar joints at rear. 3) rusted f
Apr 27, 2010 · Penalty $1,000
Resolve - Class - 3
Failure to maintain bldg in code compliant manner noted in apt 2 1st fl ktcn floor sagging towards common wall w/ btrm settlement cracks present at hallway corner by btrm btrm re-finished including floor tile @
Mar 3, 2009 · Penalty $200
Resolve - Class - 1
Sec. 28-201.1 failure to comply with the commissioner's order to obtain a permit as per violation (nov #34616243l) as per department of building record shows no permit issued for lobby(cheses) erect for gas lin
Sep 23, 2008
Resolve - Hazardous
Work w/o a permit (100% of work completed) noted construction of two chases in 1st fl public corridor adjacent to entry lobby of bldg chases made with one layer of sheet rock and contain gas lines installed
Mar 6, 2008 · Penalty $500
Resolve
Complaints
- Unsanitary condition
Pests
Sep 30, 2026 · Apt 4646
Close - Door/window
Door
Sep 30, 2026 · Apt 4646
Close - General
Bell/buzzer/intercom
Sep 30, 2026 · Apt 4646
Close - Unsanitary condition
Mold
Sep 30, 2026 · Apt 4646
Close - Paint/plaster
Wall
Sep 30, 2026 · Apt 4646
Close - Flooring/stairs
Floor
Sep 30, 2026 · Apt 4646
Close - Unsanitary condition
Pests
Sep 30, 2026 · Apt 4646
Close - Flooring/stairs
Floor
Sep 30, 2026 · Apt 4646
Close - Unsanitary condition
Garbage/recycling storage
Sep 30, 2026 · Apt BLDG
Open - Flooring/stairs
Floor
Sep 30, 2026 · Apt 4646
Close
Show 40 more ↓
- Door/window
Door
Sep 30, 2026 · Apt 4646
Close - General
Cabinet
Sep 29, 2026 · Apt 44
Close - Door/window
Window frame
Sep 29, 2026 · Apt 44
Close - Unsanitary condition
Pests
Sep 29, 2026 · Apt 44
Close - Plumbing
Basin/sink
Sep 29, 2026 · Apt 44
Close - Unsanitary condition
Pests
Sep 29, 2026 · Apt 44
Close - Paint/plaster
Wall
Sep 29, 2026 · Apt 44
Close - Door/window
Door frame
Sep 29, 2026 · Apt 44
Close - Plumbing
Bathtub/shower
Sep 11, 2026 · Apt 52
Close - Unsanitary condition
Pests
Sep 11, 2026 · Apt 52
Close - Door/window
Window frame
Sep 11, 2026 · Apt 52
Close - Electric
Outlet/switch
Sep 11, 2026 · Apt 52
Close - Plumbing
Basin/sink
Sep 11, 2026 · Apt 52
Close - Flooring/stairs
Floor
Sep 11, 2026 · Apt 52
Close - Electric
Power outage
Sep 11, 2026 · Apt 52
Close - Door/window
Door
Sep 4, 2026 · Apt 24
Close - Plumbing
Toilet
Sep 4, 2026 · Apt 24
Close - Paint/plaster
Ceiling
Aug 28, 2026 · Apt 54
Close - Plumbing
Basin/sink
Aug 28, 2026 · Apt 54
Close - Paint/plaster
Ceiling
Aug 10, 2026 · Apt 54
Close - Paint/plaster
Ceiling
Aug 5, 2026 · Apt 54
Close - General
Cabinet
Aug 4, 2026 · Apt 48
Close - General
Bell/buzzer/intercom
Aug 4, 2026 · Apt 48
Close - Door/window
Door
Aug 4, 2026 · Apt 48
Close - Unsanitary condition
Mold
Aug 4, 2026 · Apt 48
Close - Unsanitary condition
Pests
Aug 4, 2026 · Apt 48
Close - Unsanitary condition
Pests
Aug 4, 2026 · Apt 48
Close - Flooring/stairs
Stairs
Aug 4, 2026 · Apt 48
Close - Flooring/stairs
Floor
Aug 4, 2026 · Apt 48
Close - Flooring/stairs
Floor
Jul 1, 2026 · Apt 21
Close - Plumbing
Basin/sink
Jun 23, 2026 · Apt 21
Close - Flooring/stairs
Floor
Jun 23, 2026 · Apt 21
Close - Plumbing
Bathtub/shower
Jun 23, 2026 · Apt 21
Close - Water leak
Slow leak
Jun 23, 2026 · Apt 21
Close - General
Cabinet
May 29, 2026 · Apt 48
Close - Door/window
Door
May 29, 2026 · Apt 48
Close - General
Mailbox
May 21, 2026 · Apt 45
Close - Unsanitary condition
Pests
May 9, 2026 · Apt 42
Close - Plumbing
Basin/sink
May 5, 2026 · Apt 21
Close - Unsanitary condition
Pests
May 5, 2026 · Apt 21
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C7)
- Year built
- 1916
- Floors
- 5
- Residential units
- 18
- Building area
- 41,140 ft²
- Lot area
- 9,575 ft²
- Zoning
- R7-2
- Community board
- 112
- Council district
- 10
- Block / lot
- 2172 / 32
- Assessed value
- $904,950
- Landmark / historic district
- No
HPD registration #105029, last renewed Sep 16, 2025.
Questions about 4648 Broadway
Who owns 4648 Broadway?
The owner of record in NYC Department of City Planning PLUTO data is 4640 Broadway LLC.
Does 4648 Broadway have violations?
Yes. NYC HPD has recorded 1,085 housing violations at this property.
Is 4648 Broadway rent stabilized?
NYC Department of Finance tax bills listed 41 rent-stabilized units here in 2024 (about 100% of its 18 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.
When was 4648 Broadway built?
City records list 1916 as the year it was built.
How many apartments are in 4648 Broadway?
It has 18 residential units and 20 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.