# 3423 Avenue U, Marine Park-Mill Basin-Bergen Beach, Brooklyn, NY 11234 BBL 3085340001 · Block 8534 · Lot 1 · BIN 3241468 Canonical page: https://nycpropertyfacts.com/ny/brooklyn/3423-avenue-u-3085340001 Last updated: 2026-10-31 · Open-item counts as of 2026-11-09 ## Summary 3423 Avenue U (Brooklyn, NY 11234; tax lot BBL 3085340001) is a one-family home (building class A2: one-family home, one story), built around 1940, on a 2,300 sq ft lot zoned R4. City tax records list the owner as HUANG, SANNY; per ACRIS, a deed to this owner dated July 23, 2019 lists a price of $627,000. The Department of Finance's final market value for tax year 2027 is $839,000. As of November 9, 2026, NYC Open Data shows no open DOB jobs, active DOB or DOB NOW safety violations, active ECB violations, open HPD violations or unpaid OATH tickets for this lot. There were four 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.) How to cite: NYC Property Facts, “3423 Avenue U, Brooklyn, NY 11234 (BBL 3085340001)”, data as of 2026-11-09, https://nycpropertyfacts.com/ny/brooklyn/3423-avenue-u-3085340001. Source: NYC Open Data. ## Neighborhood Marine Park-Mill Basin-Bergen Beach: https://nycpropertyfacts.com/ny/brooklyn/11234 - Open HPD violations: https://nycpropertyfacts.com/ny/brooklyn/11234/open-hpd-violations - Active DOB violations: https://nycpropertyfacts.com/ny/brooklyn/11234/active-dob-violations - Active ECB violations: https://nycpropertyfacts.com/ny/brooklyn/11234/active-ecb-violations - Open DOB jobs: https://nycpropertyfacts.com/ny/brooklyn/11234/open-dob-jobs - Unpaid OATH tickets: https://nycpropertyfacts.com/ny/brooklyn/11234/unpaid-oath-tickets ## ZIP Brooklyn 11234: https://nycpropertyfacts.com/ny/brooklyn/11234 ## Nearby properties Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers. - 3419 Avenue U (24 ft): https://nycpropertyfacts.com/ny/brooklyn/3419-avenue-u-3085340002 - 3417 Avenue U (48 ft): https://nycpropertyfacts.com/ny/brooklyn/3417-avenue-u-3085340003 - 3415 Avenue U (71 ft): https://nycpropertyfacts.com/ny/brooklyn/3415-avenue-u-3085340004 - 3411 Avenue U (93 ft): https://nycpropertyfacts.com/ny/brooklyn/3411-avenue-u-3085340005 - 3409 Avenue U (114 ft): https://nycpropertyfacts.com/ny/brooklyn/3409-avenue-u-3085340006 - 3407 Avenue U (136 ft): https://nycpropertyfacts.com/ny/brooklyn/3407-avenue-u-3085340007 - 2171 East 34th Street (156 ft): https://nycpropertyfacts.com/ny/brooklyn/2171-east-34th-street-3085340011 - 2167 East 34th Street (167 ft): https://nycpropertyfacts.com/ny/brooklyn/2167-east-34th-street-3085340012 ## Open items | Item | Count | |---|---| | Open DOB jobs (permit issued, not signed off) | 0 | | Active DOB violations (BIS) | 0 | | Active DOB safety violations (DOB NOW) | 0 | | Active ECB violations | 0 | | Open HPD violations | 0 | | OATH tickets with unpaid balance | 0 | ## Lot & building - Owner of record: HUANG, SANNY - Building class: A2 – One-family home, one story - Year built: 1940 - Floors: 1 - Units: 1 residential / 1 total - Lot area: 2,300 sq ft · Building area: 1,694 sq ft - Zoning: R4 - Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), city dataset updated 2026-08-24; last loaded 2026-11-09 ## Tax assessment - Tax year 2027 (final roll): market value $839,000, assessed value $50,340, tax class 1 - Source: DOF Property Valuation and Assessment Data (https://data.cityofnewyork.us/d/8y4t-faws) ## Sales & deeds (ACRIS) Deeds recorded with the City Register. amount 0 usually means a non-market transfer. lots_in_deed > 1 means the price covers several lots. | Date | Status | Description | Source | |---|---|---|---| | 2019-07-23 | recorded (DEED) | DEED dated 2019-07-23 from ZHOU, LANXIANG to HUANG, SANNY, stated price $627,000. | bnx9-e6tj | | 2015-01-14 | recorded (DEED) | DEED dated 2015-01-14 from D'ANGIO, MARY ANN to ZHOU, LANXIANG, stated price $445,000. | bnx9-e6tj | | 2002-08-29 | recorded (DEED) | DEED dated 2002-08-29 from O'MALLEY, JOSEPHINE to D'ANGIO, MARY ANN, no price stated ($0). | bnx9-e6tj | | 2001-07-12 | recorded (DEED) | DEED dated 2001-07-12 from D'ANGIO, MARY ANN to O'MALLEY, JOSEPHINE; D'ANGIO, MARY ANN, no price stated ($0). | bnx9-e6tj | | 1993-02-03 | recorded (DEED) | DEED dated 1993-02-03 from BEAN, TERESA A; BEAN, JOSEPH A to D'ANGIO, MARY ANN, no price stated ($0). | bnx9-e6tj | | 1983-07-26 | recorded (DEED) | DEED dated 1983-07-26 from BURNS, WILLIAM A ADMOF to BEAN, JOSEPH A; BEAN, TERESA A, no price stated ($0). | bnx9-e6tj | | 1968-09-04 | recorded (DEED) | DEED dated 1968-09-04 from BURNS EDITH N; BURNS WILLIAM A to BURNS WILLIAM A, no price stated ($0). | bnx9-e6tj | ## Open DOB jobs and recent work permits A DOB "job" is an application to do construction work. status "open" = a permit was issued but DOB has no record of final sign-off. Work permits are listed with type "work_permit" and their DOB permit status (they are not counted as open items). No records found. ## Open violations (DOB, DOB NOW safety, ECB, HPD) status "open" = DOB violation category is ACTIVE, DOB NOW safety violation status is Active, ECB violation status is ACTIVE, or HPD violation status is Open. Dismissed, cured, waived and disputed-successfully safety violations are not open. No records found. ## DOB safety violations (DOB NOW) Active means the published violation status is Active. Dismissed, cured, waived, disputed successfully and pending dismissal are not open items. No records found. Source: DOB Safety Violations (DOB NOW) (https://data.cityofnewyork.us/Building/DOB-Safety-Violations/855j-jady), city dataset updated 2026-11-09; last loaded 2026-11-09 ## OATH tickets with unpaid balance or pending status "open" = balance due > $0 after a decision (cases awaiting a hearing are "pending"). default=true means the respondent did not appear. No records found. ## Complaints (HPD since 2019, 311 last 12 months) Complaints are reports, not violations. status mirrors the published complaint / request status. | Date | Status | Description | Source | |---|---|---|---| | 2026-05-31 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Hydrant. | erm2-nwe9 | | 2026-05-31 | closed (Closed) | 311 request to NYPD: Animal-Abuse – Other (complaint details). | erm2-nwe9 | | 2026-05-31 | closed (Closed) | 311 request to NYPD: Animal-Abuse – Other (complaint details). | erm2-nwe9 | | 2026-02-01 | closed (Closed) | 311 request to DSNY: Snow or Ice – Sidewalk. | erm2-nwe9 | ## Owners & contacts Owner of record comes from city tax records (PLUTO) and can lag behind recent sales. | Date | Status | Description | Source | |---|---|---|---| | 2026-08-24 | current | City tax records (PLUTO) list the owner as HUANG, SANNY. | 64uk-42ks | | 2019-07-23 | recorded | Grantee (buyer) on the most recent deed (DEED, 2019-07-23). | 636b-3b5g | --- Independent site. Data from NYC Open Data; not affiliated with the City of New York. Not a title search or official record; verify with the issuing agency. JSON: https://nycpropertyfacts.com/api/v1/property/3085340001