# 312 Union Street, Brooklyn, NY 11231 BBL 3004350019 · Block 435 · Lot 19 · BIN 3007232 Canonical page: https://nycpropertyfacts.com/ny/brooklyn/312-union-street-3004350019 Last updated: 2026-11-05 · Open-item counts as of 2026-11-09 ## Summary 312 Union Street (Brooklyn, NY 11231; tax lot BBL 3004350019) is a 4-unit walk-up apartment building (building class C3: walk-up apartments, four families), built around 1920, on a 2,200 sq ft lot zoned R6B. City tax records list the owner as BALESTRIERI, CARMELA D. The Department of Finance's final market value for tax year 2027 is $2,414,000. As of November 9, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off and one open HPD violation. There was one 311 request 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, “312 Union Street, Brooklyn, NY 11231 (BBL 3004350019)”, data as of 2026-11-09, https://nycpropertyfacts.com/ny/brooklyn/312-union-street-3004350019. Source: NYC Open Data. ## Neighborhood Carroll Gardens-Cobble Hill-Gowanus-Red Hook: https://nycpropertyfacts.com/ny/brooklyn/11231 - Open HPD violations: https://nycpropertyfacts.com/ny/brooklyn/11231/open-hpd-violations - Active DOB violations: https://nycpropertyfacts.com/ny/brooklyn/11231/active-dob-violations - Active ECB violations: https://nycpropertyfacts.com/ny/brooklyn/11231/active-ecb-violations - Open DOB jobs: https://nycpropertyfacts.com/ny/brooklyn/11231/open-dob-jobs - Unpaid OATH tickets: https://nycpropertyfacts.com/ny/brooklyn/11231/unpaid-oath-tickets ## ZIP Brooklyn 11231: https://nycpropertyfacts.com/ny/brooklyn/11231 ## Nearby properties Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers. - 314 Union Street (21 ft): https://nycpropertyfacts.com/ny/brooklyn/314-union-street-3004350020 - 310 Union Street (22 ft): https://nycpropertyfacts.com/ny/brooklyn/310-union-street-3004350018 - 316 Union Street (44 ft): https://nycpropertyfacts.com/ny/brooklyn/316-union-street-3004350021 - 308 Union Street (45 ft): https://nycpropertyfacts.com/ny/brooklyn/308-union-street-3004350017 - 318 Union Street (66 ft): https://nycpropertyfacts.com/ny/brooklyn/318-union-street-3004350022 - 306 Union Street (67 ft): https://nycpropertyfacts.com/ny/brooklyn/306-union-street-3004350016 - 353 Court Street (221 ft): https://nycpropertyfacts.com/ny/brooklyn/353-court-street-3004350005 - 355 Court Street (226 ft): https://nycpropertyfacts.com/ny/brooklyn/355-court-street-3004350004 ## Open items | Item | Count | |---|---| | Open DOB jobs (permit issued, not signed off) | 1 | | Active DOB violations (BIS) | 0 | | Active DOB safety violations (DOB NOW) | 0 | | Active ECB violations | 0 | | Open HPD violations | 1 | | OATH tickets with unpaid balance | 0 | ## Lot & building - Owner of record: BALESTRIERI, CARMELA D - Building class: C3 – Walk-up apartments, four families - Year built: 1920 - Floors: 3 - Units: 4 residential / 4 total - Lot area: 2,200 sq ft · Building area: 3,300 sq ft - Zoning: R6B - 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 $2,414,000, assessed value $1,086,300, tax class 2A - 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 | |---|---|---|---| | 2023-03-27 | recorded (DEED) | DEED dated 2023-03-27 from RUGGIERO, MATTEO; BALESTRIERI, CARMELA D; RUGGIERO, CARMELO; FONDACARO, CATHERINE; RUGGIERO, VINCENZO to BALESTRIERI, CARMELA D; RUGGIERO, VINCENZO; RUGGIERO, CARMELO; FONDACARO, CATHERINE; RUGGIERO, MATTEO, 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). | Date | Status | Description | Source | |---|---|---|---| | 2006-04-03 | open (PERMIT ISSUED - PARTIAL JOB) | BIS job 302144132 (A2 – Alteration with multiple work types (no change to use/occupancy)): PERMIT ISSUED - PARTIAL JOB — permit issued, no sign-off on record. RENOVATE CELLARNO CHANGE TO EGRESS OCCUPANCY OR USE | ic3t-wcy2 | | 2006-06-01 | n/a (ISSUED (initial)) | BIS work permit for job 302144132: Equipment work / Other / general construction. Issued 2006-06-01, expires 2007-01-01. | ipu4-2q9a | | — | n/a (IN PROCESS (initial)) | BIS work permit for job 302144132: Plumbing / Plumbing. Issued date not given. | ipu4-2q9a | ## 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. | Date | Status | Description | Source | |---|---|---|---| | 2009-09-08 | open (Nov Sent Out) | HPD class B violation (Class B): SECTION 27-2040 ADM CODE PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING 100 WATTS REQUIRED. Open — not recorded as corrected. | wvxf-dwi5 | ## 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 | |---|---|---|---| | 2026-01-24 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Hydrant. | 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 BALESTRIERI, CARMELA D. | 64uk-42ks | | 2023-03-27 | recorded | Grantee (buyer) on the most recent deed (DEED, 2023-03-27). | 636b-3b5g | | 2023-03-27 | recorded | Grantee (buyer) on the most recent deed (DEED, 2023-03-27). | 636b-3b5g | | 2023-03-27 | recorded | Grantee (buyer) on the most recent deed (DEED, 2023-03-27). | 636b-3b5g | | 2023-03-27 | recorded | Grantee (buyer) on the most recent deed (DEED, 2023-03-27). | 636b-3b5g | | 2023-03-27 | recorded | Grantee (buyer) on the most recent deed (DEED, 2023-03-27). | 636b-3b5g | | 2026-09-13 | current_registration | HPD registration contact: Agent Domenick Ruggiero, business city Brooklyn. | feu5-w2e2 | | 2026-09-13 | current_registration | HPD registration contact: JointOwner Carmela Ruggiero, business city Brooklyn. | feu5-w2e2 | | 2026-09-13 | current_registration | HPD registration contact: JointOwner Carmela Ruggiero, business city Brooklyn. | feu5-w2e2 | | 2026-09-13 | current_registration | HPD registration contact: JointOwner Domenick Ruggiero, business city Brooklyn. | feu5-w2e2 | | 2026-09-13 | current_registration | HPD registration contact: SiteManager Matteo Ruggiero. | feu5-w2e2 | --- 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/3004350019