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1816 Avenue U, Brooklyn, NY 11229

BBL 3073510007 (Borough 3, Block 7351, Lot 7) · BIN 3199700 · Last updated: · Madison · ZIP 11229

Summary · as of November 8, 2026

1816 Avenue U (Brooklyn, NY 11229; tax lot BBL 3073510007) 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 1927, on a 1,950 sq ft lot zoned R5. City tax records list the owner as TSANG, CHI CHOI /2015. The Department of Finance's final market value for tax year 2027 is $1,728,000. As of November 8, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off and two active DOB violations. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
TSANG, CHI CHOI /2015
Building class
S2 · Mixed-use: two-family home with one store or office
Year built · units
1927 · 2 res.
Lot area · zoning
1,950 sq ft · R5
Market value (DOF)
$1,728,000 FY2027
Last priced deed
—
BBL
3073510007
BIN
3199700

How to cite: NYC Property Facts, “1816 Avenue U, Brooklyn, NY 11229 (BBL 3073510007)”, data as of 2026-11-08, https://nycpropertyfacts.com/ny/brooklyn/1816-avenue-u-3073510007. 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)
TSANG, CHI CHOI /2015The 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
1927Often 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
1,950 sq ft (19.5 ft × 100 ft)
Building floor area
3,583 sq ft (incl. 1,190 sq ft commercial)
Zoning
R5, 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)
1.84 built / 1.50 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 3073510007 (Borough 3, Block 7351, Lot 7) · BIN 3199700BBL 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 2026-11-08; Building Footprints — city dataset updated 2026-11-08; last loaded 2026-11-08

Tax assessment

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

Market value (tax year 2027, final roll)
$1,728,000The 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
$103,680The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$52,116Assessed 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$1,728,000$103,6801
2026Final$1,598,000$95,8801
2025Final$1,354,000$81,2401

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-08

Sales & deed history 4

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
2015-07-02DEED, LE$0 / not statedTsui Ki Tsang Revocable Trust; Chi Choi Tsang, As Trustee; Chi Choi Tsang Revocable Trust; Tsui Ki Tsang, As TrusteeWing Fai Tsang, As Trustee; Tsui Ki Tsang Irrevocable Trust; Chi Choi Tsang Irrevocable Trust2015073101562001
1996-03-19DEED$0 / not statedTsang, Chi Choi; Tsang, Tsui KiTsu Ki Tsang/Revocable Trust; Chi Choi Tsang/Revocable Trust; Tsang, Chi Choi/Tr; Tsang, Tsui Ki/TrFT_3640005215164
1993-12-09DEED$0 / not statedCornielle, ArthurTsang, Tsui Ki; Tsang, Chi ChoiFT_3580004120758
1987-03-13DEED$0 / not statedSlack, Diane Exec; Clark, James Jr Est/OfClark, James Jr Dist/Of; Cornielle, ArthurdistFT_3580001249058

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; last loaded 2026-11-08; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-08; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-08

DOB job filings 1 open of 1

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 · 1992-05-04
300161081
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)1992-03-12$1,500

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-07; last loaded 2026-11-08; DOB Job Application Filings (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-08

Work permits 1

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
1992-05-041992-06-12300161081
BIS
Equipment work / Fire suppressionISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-07; last loaded 2026-11-08; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-07

DOB violations 2 active of 5

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
1996-03-30C-CONSTRUCTION OTHER OPTIONALV033096CNE1LA
Active
V-DOB VIOLATION - ACTIVE
1993-08-16LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV081693LL629125836
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1999-03-16LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*031699LL629124135
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1994-06-01LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*060194LL629109909
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1993-06-01LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*060193LL629109908

Source: DOB Violations — city dataset updated 2026-11-07; last loaded 2026-11-08

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 2026-11-07; last loaded 2026-11-08

OATH tickets (all agencies) 0 unpaid of 39

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
2026-01-05Sanitation OthersIMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1STTSANG CHI CHOI$50 / $50 / $0049627832H
No balance due
PAID IN FULL
2023-12-26Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETTSANG CHI CHOI$50 / $50 / $0048007197Y
No balance due
PAID IN FULL
2023-10-10Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETTSANG CHI CHOI$50 / $50 / $0048128039J
No balance due
PAID IN FULL
2014-01-13Dos - Enforcement AgentsDIRTY SIDEWALK DIRTY AREADALAI 99 CENTS STORE INC$100 / $100 / —041315543H
No balance due
HEARING COMPLETED · IN VIOLATION
2013-04-11Fire Department Of NycCERTIFICATES OF FITNESS AND CERTIFICATES OF QUALIFICATIONDALAI 99 CENTS STORE INC— / — / —011273258H
No balance due
PAID IN FULL
2012-08-11Dos - Enforcement AgentsLITTERINGBODYANOVSKIY$100 / $100 / —041535176J
No balance due
WRITTEN OFF · WRITTEN OFF
2011-02-25Dos - Enforcement AgentsLITTERINGABRAMOVA$450 / $0 / $0042232791J
No balance due
PAID IN FULL · IN VIOLATION
2007-05-04Fire Department Of NycSOLD STR USE MFG TRN MATERIAL W O PERMITKIM GIFT SHOP INC$400 / $400 / —010936040N
No balance due Default
PAID IN FULL · DEFAULTED
2007-01-30Sanitation PoliceRECYCLING NOTICES NOT POSTED IN MAINTENANCE AREAKIM GIFT SHOP INC$25 / $25 / —0157896577
No balance due
PAID IN FULL · IN VIOLATION
2004-10-07$100 / $100 / —0144308084
No balance due
PAID IN FULL
2004-09-28$250 / $250 / —0135170870
No balance due
HEARING COMPLETED · IN VIOLATION
2004-09-10$100 / $100 / —0142475640

Showing 12 of 39 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-08; last loaded 2026-11-08

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 2026-11-08; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-08

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 2026-11-08; last loaded 2026-11-08

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 2026-11-08; last loaded 2026-11-08

311 requests (last 12 months) 0

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.

No records found in this dataset for this lot.

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-07; last loaded 2026-11-07; a later sync attempt failed on 2026-11-08; showing the last successful load

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 Madison: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

Closest on Ave U

Same tax block (7351), closest first

All properties on Ave U, Brooklyn · Brooklyn 11229

Open-item counts as of November 8, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs