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717 Knickerbocker Avenue, Brooklyn, NY 11221

BBL 3033920007 (Borough 3, Block 3392, Lot 7) · BIN 3078032 · Last updated:

Summary · as of November 6, 2026

717 Knickerbocker Avenue (Brooklyn, NY 11221; tax lot BBL 3033920007) is a 2-unit mixed-use building with apartments and ground-floor commercial space (building class S2: mixed-use: two-family home with one store or office), built around 1925, on a 1,876 sq ft lot zoned R6. City tax records list the owner as KHAN MOHAMMAD B. The Department of Finance's final market value for tax year 2027 is $1,351,000. As of November 6, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off, five active DOB violations and 20 open HPD violations. There were three 311 requests in the past 12 months and one HPD complaint since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
KHAN MOHAMMAD B
Building class
S2 · Mixed-use: two-family home with one store or office
Year built · units
1925 · 2 res.
Lot area · zoning
1,876 sq ft · R6
Market value (DOF)
$1,351,000 FY2027
Last priced deed
—
BBL
3033920007
BIN
3078032

How to cite: NYC Property Facts, “717 Knickerbocker Avenue, Brooklyn, NY 11221 (BBL 3033920007)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/717-knickerbocker-avenue-3033920007. Source: NYC Open Data.

Lot & building

Basic facts about the tax lot and building from the city’s PLUTO database.

Owner (as listed by the city)
KHAN MOHAMMAD BThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
S2 – Mixed-use: two-family home with one store or officeThe Department of Finance’s category for what kind of building this is.
Land use
Mixed residential & commercialCity Planning’s broad category of how the lot is used.
Year built
1925Often an estimate for older buildings.
Floors
3
Units
2 residential / 3 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
1,876 sq ft (19.75 ft × 95 ft)
Building floor area
3,259 sq ft (incl. 652 sq ft commercial)
Zoning
R6, C1-3The zoning district sets what can be built and used here. Residential district; the overlay (C1/C2…) allows local retail on residential blocks.
Built vs. allowed density (FAR)
1.74 built / 2.43 max residentialFloor Area Ratio = building floor area ÷ lot area. If built FAR is below the maximum, zoning may allow more floor area (other rules apply).
Identifiers
BBL 3033920007 (Borough 3, Block 3392, Lot 7) · BIN 3078032BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-07; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01

Tax assessment

How the Department of Finance values this lot for property tax.

Market value (tax year 2027, final roll)
$1,351,000The Department of Finance’s estimate of value for tax purposes. It is not an appraisal and is often far from the sale price.
Assessed value
$81,060The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$31,291Assessed value minus any exemptions.
Tax class
Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
Tax yearRollMarket valueAssessed valueTax class
2027Final$1,351,000$81,0601
2026Final$1,333,000$79,9801
2025Final$1,130,000$67,8001

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-07

Sales & deed history 2

Deeds recorded with the City Register (ACRIS). A deed transfers ownership. A $0 or very low price usually means a transfer between related parties, an estate, or a refinance-related transfer, not a market sale. This is not a title search; mortgages, liens and other documents are not shown.

DateTypePriceSeller (grantor)Buyer (grantee)Doc ID
1985-03-19DEED$0 / not stated
one deed covering 4 lots; price is for all of them
Hogan, Jenny; Hogan, EdwardKhan, Mohammad Bashir; Khan, Azar BegumFT_3790001078479
1981-10-07DEED$0 / not statedBackmeier Antoinette Sophie; Backmeier HermanHogan Jenny; Hogan EdwardBK_8130127000118

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-07; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-07; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-07

DOB job filings 1 open of 2

A “job” is an application to the Department of Buildings to do construction work. A job marked Permitted, not signed off had a work permit issued but the city has no record of final sign-off (inspection/completion). Old jobs left in this state are common and appear in buyer and lender due diligence; the work may or may not have been done.

StatusJob #TypeFiledEst. cost
Permitted, not signed off
PERMIT ISSUED - PARTIAL JOB · 2003-11-21
301652922
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2003-10-17$3,000
Not open
SIGNED OFF · 2016-08-10
321274973
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2015-11-18$4,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-06; data as of 2026-11-07; DOB Job Application Filings (BIS) — city dataset updated 2026-11-05; data as of 2026-11-06

Work permits 2

Individual permits issued under DOB jobs (one job can have several permits, e.g. plumbing and construction). Permit expiration alone does not mean the job was completed or signed off.

IssuedExpiresJob #WorkPermit status
2015-12-042016-10-01321274973
BIS
Equipment work / Fire suppressionISSUED (initial)
2003-11-212004-06-12301652922
BIS
Equipment work / Fire suppressionISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-06; data as of 2026-11-07; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; data as of 2026-11-07

DOB violations 5 active of 8

Violations issued by the Department of Buildings for building-code or zoning conditions. Active means DOB has not recorded the violation as resolved or dismissed. Many active DOB violations are old (e.g. elevator or boiler inspection paperwork).

StatusIssuedTypeDescriptionNumber
Active
V-DOB VIOLATION - ACTIVE
2023-06-30LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTIONV063023LBLVIO26593
Active
V-DOB VIOLATION - ACTIVE
2023-06-30LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTIONV063023LBLVIO06656
Active
V-DOB VIOLATION - ACTIVE
2023-04-25LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTIONV042523LBLVIO12835
Active
V-DOB VIOLATION - ACTIVE
2018-04-06LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2016 INSPECTION REPORTV040618LBLVIO09736
Active
V-DOB VIOLATION - ACTIVE
2017-02-24LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2015 INSPECTION REPORTV022417LBLVIO07645
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2009-01-01LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*010109LL629113252
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1998-05-04LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*050498LL629120147
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1994-07-25LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*072594LL629102725

Source: DOB Violations — city dataset updated 2026-11-06; data as of 2026-11-07

ECB violations (DOB) 0 active of 0

DOB violations that go to a hearing at OATH (formerly the Environmental Control Board) and can carry fines. Active or Resolved follows the DOB violation status field. The hearing status is about the hearing and its penalty: written off means the city stopped collecting the fine, not that the condition was corrected. A balance due is a fine the city says is unpaid.

No records found in this dataset for this lot.

Source: DOB ECB Violations — city dataset updated 2026-11-06; data as of 2026-11-07

OATH tickets (all agencies) 0 unpaid of 9

Summonses heard at the Office of Administrative Trials and Hearings, from agencies like Sanitation, Buildings, Fire and Health, linked to this lot’s block and lot. Default means the respondent did not appear at the hearing, which typically results in the maximum penalty. Tickets may be issued to tenants or businesses at the address, not just the owner. DOB ECB tickets appear here too.

StatusDateAgencyChargeRespondentImposed / paid / balanceTicket #
No balance due
PAID IN FULL
2026-10-04Dos - Enforcement AgentsIMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1STKHAN MOHAMMAD B$50 / $50 / $0080096328M
No balance due
HEARING COMPLETED · IN VIOLATION
2019-07-23Fire Department Of NycGENERAL MAINTENANCEANGELAS BAKERY CORP$0 / $0 / $0011693198X
No balance due
PAID IN FULL · IN VIOLATION
2011-04-29Fire Department Of NycFIRE-RATED CONSTRUCTIONMOHAMMED KHAN$1,000 / $1,000 / —011093148Z
No balance due
HEARING COMPLETED · IN VIOLATION
2010-03-04Fire Department Of NycINSPECTION AND TESTINGANGELA'S BAKERY— / — / —011196616M
No balance due
HEARING COMPLETED · IN VIOLATION
2006-03-03— / — / —010974481X
No balance due
HEARING COMPLETED · IN VIOLATION
2005-05-18— / — / —010893830K
No balance due
PAID IN FULL
2005-03-03$100 / $100 / —0145512328
No balance due
PAID IN FULL
2004-03-23$100 / $100 / —0141690881
No balance due
HEARING COMPLETED · IN VIOLATION
2002-08-23— / — / —010628633Y

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-06; data as of 2026-11-06

HPD registration & contacts

Owners of most rental buildings must register with the Department of Housing Preservation and Development each year and list an owner and managing agent.

No HPD registration found. Registration is required for buildings with 3 or more apartments (and for 1–2 family homes where neither the owner nor family lives there).

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-07; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-07

HPD housing-code violations 20 open of 20

Violations HPD inspectors issued for conditions in residential buildings (heat, leaks, mold, pests, lead paint, etc.). Class letters show how serious: Class A – non-hazardous (HPD gives 90 days to correct); Class B – hazardous (30 days to correct); Class C – immediately hazardous (24 hours to correct for most conditions); Class I – information / order (e.g. orders to register, lead or other administrative orders). Open means HPD has not recorded the condition as corrected.

StatusClassIssuedAptCondition
Open
Nov Sent Out · 2016-09-06
B2016-09-062FLSECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF BEDBUGS IN THE ENTIRE APARTMENT LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM NORTH AT EAST
Open
Nov Sent Out · 2008-07-03
B2008-07-03SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF VERMIN MICE & ROACHES, 3RD STY. APT. 2.
Open
Nov Sent Out · 2008-07-03
B2008-07-03SECTION 27-2005 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF EXPOSED ELECTRIC WIRE WALL TO CEILING, 3RD STY. APT. 2, BATHROOM.
Open
Nov Sent Out · 2008-07-03
B2008-07-03SECTION 27-2005 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF UNCAPPED GAS LINE AT SOUTH WALL, 3RD STY. APT. 2, KITCHEN.
Open
Nov Sent Out · 2008-07-03
B2008-07-03SECTION 27-2005 ADMIN. CODE: PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR AT PRIVATE HALL, 3RD STY. APT. 2.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE INOPERABLE BALANCE LOWER SASHES WINDOWS FRONT ROOM 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE ELECTRICAL LIGHT SYSTEM CEILING KITCHEN 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF VERMIN MICE & ROACHES THROUGHOUT 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: REPLACE WITH NEW THE BROKEN OR DEFECTIVE GLASS TRANSOME ENTRANCE DOOR FRAME STREET TO VESTIBULE 1ST STY.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: REPLACE WITH NEW THE BROKEN OR DEFECTIVE CASEMENT WINDOW BATHROOM 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2038 ADMIN CODE: PROVIDE ADEQUATE LIGHTING FOR 60 WATTS 2ND STY. PUBLIC HALL.
Open
Nov Sent Out · 2006-07-03
A2006-07-03SECTION 27-2005 ADMIN. CODE: REFIT DOOR WEST ENTRANCE TO FRONT ROOM 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE PLASTER WALLS 2ND STY. PUBLIC HALL.
Open
Nov Sent Out · 2006-07-03
A2006-07-03SECTION 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE WOOD PANEL UNDER WINDOW FRONT ROOM 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE ELECTRICAL OUTLET WALL KITCHEN 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005,2007 ADMIN. CODE: FIRE EGRESS DEFECTIVE. REMOVE OBSTRUCTING BARS OR GATES FROM WINDOW TO FIRE ESCAPE 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR WALLS & CEILING KITCHEN 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR WALLS 1ST & 2ND ROOMS FROM FRONT, 2ND STY. APT. 1.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: REPLACE WITH NEW THE MISSING DOOR ENTRANCE STREET TO VESTIBULE STY.
Open
Nov Sent Out · 2006-07-03
B2006-07-03SECTION 27-2005 ADMIN. CODE: REPLACE WITH NEW THE MISSING KNOBS & LOCK ASSEMBLY DOOR VESTIBULE TO 1ST STY. PUBLIC HALL.

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-06; data as of 2026-11-07

HPD complaints 1

Complaints tenants or others made to HPD (usually via 311) about housing conditions, from 2019 onward. A complaint is not a violation; HPD may inspect and issue one.

ReceivedStatusAptProblem(s)Outcome
2026-02-02CLOSEBLDGHeat/Hot Water – Entire BuildingHPD responded to a complaint of no heat or hot water in the building. An occupant of the building confirmed heat and hot water had been restored when the Inspector attempted to conduct the inspection

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-07; data as of 2026-11-07

311 requests (last 12 months) 3

Recent 311 service requests the city geocoded to this lot: noise, illegal parking, heat, sanitation and more. Anyone can file them, so they describe activity at or near the address, not necessarily the building itself.

OpenedAgencyComplaintStatusClosed
2026-10-10NYPDNoise - Street/Sidewalk – Loud Music/PartyClosed2026-10-10
2026-08-31NYPDAbandoned Vehicle – With License PlateClosed2026-08-31
2026-02-02HPDHEAT/HOT WATER – ENTIRE BUILDINGClosed2026-02-07

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-07; data as of 2026-11-07

Nearby properties

More in Bedford-Stuyvesant (East): Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

On Knickerbocker Ave

Same tax block (3392)

All properties on Knickerbocker Ave, Brooklyn · All of Brooklyn 11221

Open-item counts as of November 6, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs