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837 Knickerbocker Avenue, East New York-New Lots, Brooklyn, NY 11207

BBL 3034250006 (Borough 3, Block 3425, Lot 6) · BIN 3326459 · Last updated: · East New York-New Lots · ZIP 11207

Summary · as of November 10, 2026

837 Knickerbocker Avenue (Brooklyn, NY 11207; tax lot BBL 3034250006) is a 1-unit mixed-use building with apartments and ground-floor commercial space (building class S1: mixed-use: one-family home with one store or office), built around 1931, on a 2,257 sq ft lot zoned R6. City tax records list the owner as HUESCA, CARLOS E; per ACRIS, a deed to this owner dated December 9, 2011 lists a price of $302,000. The Department of Finance's final market value for tax year 2027 is $1,459,000. As of November 10, 2026 (limited by DOB Job Application Filings (BIS); other open-item sources were confirmed later), NYC Open Data shows two DOB jobs with a permit issued but no sign-off. There were seven 311 requests in the past 12 months and no HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
HUESCA, CARLOS E
Building class
S1 · Mixed-use: one-family home with one store or office
Year built · units
1931 · 1 res.
Lot area · zoning
2,257 sq ft · R6
Market value (DOF)
$1,459,000 FY2027
Last priced deed
$302,000 · 2011-12-09
BBL
3034250006
BIN
3326459

Rescinded Vacate order — Per city records, DOB shows a vacate order (complaint 3813156, category 54, disposition Y2: Vacate order fully rescinded) that was rescinded on October 4, 2024. Confirm DOB vacate orders on DOB BIS; complaint data can lag. DOB BIS property profile · DOB complaints

Vacate order details

How to cite: NYC Property Facts, “837 Knickerbocker Avenue, Brooklyn, NY 11207 (BBL 3034250006)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/837-knickerbocker-avenue-3034250006. Source: NYC Open Data.

Vacate orders 0 active of 1

Orders to leave a building, in whole or in part, from DOB complaint dispositions and from HPD. Per city records, an order is active when the latest vacate served (full or partial, including a MARCH code that issues a vacate) has no later full rescind. A partial rescind is noted and does not clear the order. DOB complaint data can lag the DOB BIS property profile; confirm a DOB order there.

StatusAgencyTypeServedRescindedDetailRecord
RescindedDOB——2024-10-04Vacate order fully rescindedDOB BIS property profile · DOB complaints

Source: DOB Complaints Received (vacate dispositions) — city dataset updated 2026-11-11; last loaded 2026-11-12; HPD Order to Repair/Vacate Orders — city dataset updated 2026-11-11; last loaded 2026-11-12

Lot & building

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

Owner (as listed by the city)
HUESCA, CARLOS EThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
S1 – Mixed-use: one-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
1931Often an estimate for older buildings.
Floors
2
Units
1 residential / 2 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,257 sq ft (20 ft × 100 ft)
Building floor area
2,900 sq ft (incl. 1,400 sq ft commercial)
Zoning
R6The zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
1.28 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 3034250006 (Borough 3, Block 3425, Lot 6) · BIN 3326459BBL 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; last loaded 2026-11-12; Building Footprints — city dataset updated 2026-11-08; last loaded 2026-11-08; checked unchanged 2026-11-10

Tax assessment

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

Market value (tax year 2027, final roll)
$1,459,000The 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
$87,540The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$31,764Assessed 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$1,459,000$87,5401
2026Final$1,278,000$76,6801
2025Final$1,016,000$60,9601

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-12

Sales & deed history 3

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
2011-12-09DEED$302,000Ferrera, Luis; Ferrera, NidiaHuesca, Carlos E2011121200388001
1997-01-22DEED$0 / not statedStanley, KatherineFerrera, Luis; Ferrera, NidiaFT_3690005544569
1992-03-11DEED$0 / not statedStanley, Katherine/IndivStanley, KatherineFT_3290001674229

Source: ACRIS Real Property Master — city dataset updated 2026-11-10; last loaded 2026-11-12; ACRIS Real Property Legals — city dataset updated 2026-11-10; last loaded 2026-11-12; ACRIS Real Property Parties — city dataset updated 2026-11-10; last loaded 2026-11-12

DOB job filings 2 open of 3

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 · 2026-09-28
B01446674-I1
DOB NOW
Alteration2026-09-11$159,500
Permitted, not signed off
Permit Entire · 2026-10-15
B01446674-S1
DOB NOW
Alteration2026-09-11$64,000
Not open
LOC Issued · 2023-05-22
B00775773-I1
DOB NOW
Alteration2022-07-15$15,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-10; last loaded 2026-11-11; DOB Job Application Filings (BIS) — city dataset updated 2026-11-09; last loaded 2026-11-10

Work permits 5

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
2026-10-152026-11-12B01446674-S1
DOB NOW
Plumbing
INSTALLATION OF PLUMBING FIXTURES AND COMMERCIAL COOKING EQUIPMENT
Permit Issued
2026-09-282026-12-31B01446674-I1
DOB NOW
Mechanical Systems
INTERIOR RENOVATION, INSTALLATION OF KITCHEN EXHAUST SYSTEM, NO CHANGE IN USE OCCUPANCY OR EGRESS
Permit Issued
2026-09-282026-12-31B01446674-I1
DOB NOW
General Construction
INTERIOR RENOVATION, INSTALLATION OF KITCHEN EXHAUST SYSTEM, NO CHANGE IN USE OCCUPANCY OR EGRESS
Permit Issued
2022-07-202022-08-28B00775773-I1
DOB NOW
General Construction
REPAIR EXISTING SECTION OF THE EXISTING RUBBLE STONE GRAVITY RETAINING WALL AND REPLACE EXISTING DAMAGED SECTION OF THE GRAVITY WALL WITH EITHER REINFORCED CONC
Signed-off
2022-07-202022-08-28B00775773-I1
DOB NOW
General Construction
REPAIR EXISTING SECTION OF THE EXISTING RUBBLE STONE GRAVITY RETAINING WALL AND REPLACE EXISTING DAMAGED SECTION OF THE GRAVITY WALL WITH EITHER REINFORCED CONC
Signed-off

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-09; last loaded 2026-11-10; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-07

DOB violations 0 active of 0

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). The active-DOB count in the summary also includes DOB NOW safety violations, listed in the next section.

No records found in this dataset for this lot.

Source: DOB Violations — city dataset updated 2026-11-11; last loaded 2026-11-11

DOB safety violations (DOB NOW) 0 active of 0

Safety violations DOB NOW publishes for devices such as boilers, elevators and gas piping (Local Law 152). Active means the published status is Active. Dismissed, cured, waived and successfully disputed violations are counted under “resolved or not active” and are not open items. Active ones are included in the summary’s active DOB violation total.

No records found in this dataset for this lot.

Source: DOB Safety Violations (DOB NOW) — city dataset updated 2026-11-11; last loaded 2026-11-11

ECB violations (DOB) 0 active of 2

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.

StatusIssuedSeverityWhat it was forPenalty / paid / balanceECB #
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2008-09-04CLASS - 3WORK W/O A PERMIT NOTED AT RIGHT SIDE OF PROPERTY CENTER CELLAR WINDOW HAS BEEN ENLARGE AND 30 IN WIDE BY 6FT HEIGHT METAL DOOR INSTALLED NOTED NO PERMIT FILED/OBTAINED FOR RE-CONFIGURATION. REMEDY: OBTAIN PERM$100 / $100 / $034687813M
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2008-09-04CLASS - 1FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MANNER NOTED NORTH PERIMETER OF REAR YARD SOFT LENGTH ELEVATED 6FT HIGH FROM ADJACENT PROPERTY OF 835 KNICKERBOCKER REAR YARD. NOTED NO RESIDENTIAL FENCE OR ENCLOS$1,000 / $1,000 / $034687814Y

Source: DOB ECB Violations — city dataset updated 2026-11-11; last loaded 2026-11-11

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
2022-06-09Police DepartmentESTY BRAHIIY$0 / $25 / $-250201595159
No balance due Default
PAID IN FULL · DEFAULTED
2017-09-22Dos - Enforcement AgentsSIDEWALK OBSTRUCTIONMOCA FRUTERA$130 / $130 / $0045250166M
No balance due
WRITTEN OFF · WRITTEN OFF
2016-04-06Sanitation RecyclingPOSTING OF SIGN PERMIT, WASTE REMOVALMOCHA DRY CLEANERS$100 / $0 / $0040516414X
No balance due
WRITTEN OFF · WRITTEN OFF
2015-05-26Dos - Enforcement AgentsPOSTING OF SIGN PERMIT, WASTE REMOVALMOCA DRY CLEANERS$100 / $0 / $0041965738M
No balance due
PAID IN FULL
2014-05-05Dos - Enforcement AgentsSTORAGE OF RECEPTACLESJOAPE BARBERSHOP$100 / $100 / —041975599K
No balance due Default
PAID IN FULL · DEFAULTED
2012-07-10Dos - Enforcement AgentsIMPROPER RECEPTACLES 1ST OFFENSEHUESCA$300 / $300 / —041605379K
No balance due Default
PAID IN FULL · DEFAULTED
2012-07-09Dos - Enforcement AgentsSTORAGE OF RECEPTACLESJOAPE BARBERSHOP$300 / $300 / —041554161K
No balance due
PAID IN FULL · IN VIOLATION
2008-09-04Dept. Of BuildingsWORK WITHOUT A PERMITFERRERA LUIS$100 / $100 / —034687813M
No balance due
PAID IN FULL · IN VIOLATION
2008-09-04Dept. Of BuildingsFAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNERFERRERA LUIS$1,000 / $1,000 / —034687814Y

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-11; last loaded 2026-11-12

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; last loaded 2026-11-10; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-10

HPD housing-code violations 0 open of 0

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.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-11; last loaded 2026-11-11

HPD complaints 0

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.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-11; last loaded 2026-11-11

311 requests (last 12 months) 7

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
2026-07-26DEPWater Maintenance – Fire Hydrant RunningClosed2026-07-26
2026-07-26NYPDNoise - Commercial – Banging/PoundingClosed2026-07-26
2026-05-12DPRIllegal Tree Damage – Unauthorized Tree PruningClosed2026-06-26
2026-04-24NYPDNoise - Commercial – Banging/PoundingClosed2026-04-24
2026-04-18NYPDNoise - Commercial – Banging/PoundingClosed2026-04-18
2026-01-21NYPDBlocked Driveway – No AccessClosed2026-01-21
2026-01-15NYPDBlocked Driveway – No AccessClosed2026-01-15

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-11; last loaded 2026-11-12

Nearby properties

Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers.

More in East New York-New Lots: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

Closest on Knickerbocker Ave

Same tax block (3425), closest first

All properties on Knickerbocker Ave, Brooklyn · Brooklyn 11207

Open-item counts as of November 10, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs