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817 Avenue U, Brooklyn, NY 11223

BBL 3071110041 (Borough 3, Block 7111, Lot 41) · BIN 3192157 · Last updated:

Summary · as of October 31, 2026

817 Avenue U (Brooklyn, NY 11223; tax lot BBL 3071110041) 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 1931, on a 2,145 sq ft lot zoned R6A. City tax records list the owner as CAIATI, BERARDINO. The Department of Finance's final market value for tax year 2027 is $2,784,000. As of October 31, 2026, NYC Open Data shows three active DOB violations and six OATH tickets with an unpaid balance. There were five 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
CAIATI, BERARDINO
Building class
S2 · Mixed-use: two-family home with one store or office
Year built · units
1931 · 2 res.
Lot area · zoning
2,145 sq ft · R6A
Market value (DOF)
$2,784,000 FY2027
Last priced deed
—
BBL
3071110041
BIN
3192157

How to cite: NYC Property Facts, “817 Avenue U, Brooklyn, NY 11223 (BBL 3071110041)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/817-avenue-u-3071110041. 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)
CAIATI, BERARDINOThe 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
1931Often 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
2,145 sq ft (19.5 ft × 110 ft)
Building floor area
3,426 sq ft (incl. 1,165 sq ft commercial)
Zoning
R6A, C1-4, OPThe 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)
1.60 built / 3.00 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 3071110041 (Borough 3, Block 7111, Lot 41) · BIN 3192157BBL 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 2026-11-04; 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)
$2,784,000The 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
$167,040The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$53,292Assessed 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$2,784,000$167,0401
2026Final$2,227,000$133,6201
2025Final$1,759,000$105,5401

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-04

Sales & deed history 7

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
2018-07-10DEED, LE$0 / not statedCaiati, BerardinoBerardino Caiati, As Trustee; Berardino Caiati Trust2018072800036001
2015-07-16DEED$0 / not statedCaiati, Michelina; Caiati, BerardinoCaiati, Berardino2015072300174001
1986-02-06DEED$0 / not statedMazzoni, Gaetano/Aka; Mazzone, Raffaele; Mazzone, GaetanoCaiati, Michelina; Caiati, BerardinoFT_3480001145048
1984-07-03DEED$0 / not statedCiaramitaro, VincentMazzoni, GaetanoFT_3070001028807
1980-05-23DEED$0 / not statedCiaramitaro GiuseppeCiaramitaro VincentBK_8030116101992
1980-05-16DEED$0 / not statedCiaramitaro PaulCiaramitaro GiuseppeBK_8030116000482
1975-11-06DEED$0 / not statedTaluann CorpCiaramitaro Vincent; Ciaramitaro PaulBK_7530081201747

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-04; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-04; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-04

DOB job filings 0 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
Not open
SIGNED OFF · 1993-09-09
300244689
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)1993-04-16$20,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-04; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31

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
1993-08-201993-08-20300244689
BIS
Equipment work / Mechanical/HVACISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-04; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 3 active of 6

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
1993-08-16LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV081693LL629125702
Active
V-DOB VIOLATION - ACTIVE
1993-08-16LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV081693LL629125701
Active
V-DOB VIOLATION - ACTIVE
1993-08-16LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV081693LL629125700
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1995-08-29LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*082995LL629127529
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1995-08-29LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*082995LL629127528
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1995-08-29LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*082995LL629127527

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-04

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: DISMISSED · Certification: N/A - DISMISSED
1996-03-21Hazardous4A,19B,.$0 / $0 / $032013914H
Resolved
Hearing: DISMISSED · Certification: N/A - DISMISSED
1996-03-21Hazardous4A,19B,.$0 / $0 / $032013915J

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-04

OATH tickets (all agencies) 6 unpaid of 24

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 #
Unpaid balance Default
DOCKETED · DEFAULTED
2023-05-11Sanitation OthersSTORAGE OF RECEPTACLES PLACED OUT PRIOR TO 8PM WITHOUT A RECEPTACLECAIATI BERARDINO$300 / $0 / $300047878784X
Unpaid balance Default
DOCKETED · DEFAULTED
2023-03-30Sanitation OthersDIRTY SIDEWALKCAIATI BERARDINO$300 / $0 / $300047690164K
Unpaid balance Default
DOCKETED · DEFAULTED
2023-02-13Dos - Enforcement AgentsDIRTY SIDEWALKCAIATI BERARDINO$300 / $0 / $300047762515N
Unpaid balance Default
DOCKETED · DEFAULTED
2022-08-29Sanitation OthersDIRTY SIDEWALKCAIATI BERARDINO$300 / $0 / $300047494703M
Unpaid balance Default
DOCKETED · DEFAULTED
2022-05-26Sanitation OthersDIRTY SIDEWALKCAIATI BERARDINO$300 / $0 / $300047345173P
Unpaid balance Default
DOCKETED · DEFAULTED
2019-09-04Sanitation OthersDIRTY SIDEWALK DIRTY AREACAIATI$300 / $0 / $3000208981823
No balance due
PAID IN FULL
2026-04-22Sanitation OthersDIRTY SIDEWALKCAIATI BERARDINO$50 / $50 / $0049675534X
No balance due
PAID IN FULL
2026-04-21Dos - Enforcement AgentsDIRTY SIDEWALKCAIATI BERARDINO$50 / $50 / $0049734706K
No balance due
PAID IN FULL
2026-04-08Sanitation OthersDIRTY SIDEWALKCAIATI BERARDINO$50 / $50 / $0049675487M
No balance due
PAID IN FULL
2025-02-20Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETCAIATI BERARDINO$50 / $50 / $0048925563H
No balance due
PAID IN FULL
2025-01-31Sanitation OthersDIRTY SIDEWALKCAIATI BERARDINO$50 / $50 / $0048925441J
No balance due
PAID IN FULL
2024-11-02Sanitation OthersDIRTY SIDEWALKCAIATI BERARDINO$50 / $50 / $0048668384H

Showing 12 of 24 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-04

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 2026-11-04; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-04

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 2026-11-02; data as of 2026-11-04

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 2026-11-02; data as of 2026-11-04

311 requests (last 12 months) 5

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
2026-08-03DSNYIllegal Dumping – Chronic DumpingClosed2026-08-11
2026-07-17DSNYIllegal Dumping – Chronic DumpingClosed2026-07-24
2026-06-25DSNYIllegal Dumping – Chronic DumpingClosed2026-07-02
2026-06-16DSNYIllegal Dumping – Chronic DumpingClosed2026-07-02
2026-05-27DPRDamaged Tree – Tree Alive - in Poor ConditionClosed2026-06-10

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-04; data as of 2026-11-04

Nearby properties

On Ave U

Same tax block (7111)

All properties on Ave U, Brooklyn · All of Brooklyn 11223 (Gravesend (East)-Homecrest)

Open-item counts as of October 31, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs