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Brooklyn • Condo

378 Union Ave

Brooklyn, NY 11211BBL 3027731201BIN 3330027
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Updated Aug 1, 2026 · 16 sources

Year Built1931
Floors6
Units49
Building Area37,030 sqft
ZoningR7A
ClassRM
Market Value$658K

378 UNION AVE is a property located at 378 UNION AVE, Brooklyn, NY 11211. It is classified as a condo - multi-dwelling. The building was constructed in 1931. It has 6 floors and 49 units. The building area is 37,030 square feet on a 11,825 sqft lot. The property is zoned R7A. The assessed market value is $658K. It last sold for $3.7M on Jan 22, 2026. There are 56 building permits on record (38 active). There are 30 violations on record (7 currently open). 4 docketed judgments carrying $250 in open balances are on record with OATH. Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

202records on file
22Energy Star

Completed in 1931, 378 Union Ave rises 6 stories over Kings. Public records put it at 49 units and 37,030 square feet of floor area, on land zoned R7A. It is carried on the public rolls at a market value of $658K, and assessed for tax at $296K. In the 19 years its record reaches back, the lot has drawn 202 separate government filings.

The documentary life of the address leans hard toward permit: 56 of its 202 records, fully 28%, fall under that one heading. Inspection (40) and violation (30) trail well behind. 7 violations stand open against it today.

The pace is anything but even. Activity is spread across the decades, with 2008 the busiest year on file.

On the environmental ledger, the building posts an Energy Star score of 22, with a site energy-use intensity of 94.4 kBtu per square foot. Its operations answer for roughly 252 metric tons of CO2-equivalent a year.

Read together — 28% permit, 19 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$658K of Kings, written across 202 government filings.

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Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address378 UNION AVE, Brooklyn, NY 11211
Building TypeCondo - Multi-Dwelling
RM
Year Built1931
Floors6
Total Units49
Building Area37,030 sqft
Lot Size11,825 sqft
ZoningR7A
ConditionAverage
3027731201
3330027

Assessment & Sales

$658K
$296K
$22K
$3.7M
Last Sale DateJan 22, 2026

Building Permits

56 on record · 38 active
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed Feb 6, 2026Est. cost $59KJob #340241492-01

GEN. CONSTR.

View this permit's full record & inspection history →
PlumbingDOB Legacy
ISSUED
Filed Jan 6, 2026Job #340241492-01-02

PL

View this permit's full record & inspection history →
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed Nov 18, 2025Est. cost $160KJob #320934888-01

GEN. CONSTR.

View this permit's full record & inspection history →
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed Nov 18, 2025Est. cost $44KJob #340145710-01
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ISSUED
Filed May 19, 2025Est. cost $448KJob #B00812625-I1

Renewal Permit Without Changes

View this permit's full record & inspection history →

+ 51 more permits — view full report

Violations

30 on record · 7 open
Open judgment balance — docketed OATH judgments$250
Judgments · 4 docketed
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2025Balance $125Ticket #048724288L
ILLEGAL POSTING OF HANDBILL NOTICE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2025Balance $125Ticket #048724289N
ILLEGAL POSTING OF HANDBILL NOTICE
OATH summonsJUDGMENT DOCKETED
Docketed Dec 31, 2015Ticket #0188908803
FAILED TO SUBMIT AN ANNUAL TEST REPORT FOR A BACKFLOW PREVENTER
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Dec 31, 2015Ticket #012043147H
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS
HPDClass B
NOV SENT OUT
Issued Jun 3, 2020#13682292

§ 27-2024 ADM CODE PROVIDE ADEQUATE SUPPLY OF COLD WATER FOR THE FIXTURES ... IN THE KITCHEN LOCATED AT APT 603, 6th STORY, 5th APARTMENT FROM NORTH AT EAST

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HPDClass A
NOV SENT OUT
Issued Jun 3, 2020#13682293

§ 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME AT OR NEAR MAILBOXES, BOTTOM EDGE OF FRAME BETWEEN 48-62 INCHES ABOVE FLOOR ON THE WALL AT PUBLIC HALL, 1st STORY

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HPDClass A
NOV SENT OUT
Issued Jun 3, 2020#13682295

§ 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX ON THE WALL AT PUBLIC HALL, 1st STORY

View this violation's full details & status history →
HPDClass A
NOV SENT OUT
Issued Jun 3, 2020#13682297

§ 27-2046.1 HMC: POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, IN A COMMON AREA OF A CLASS A MULTIPLE DWELLING NEAR INSPECTION CERTIFICATE OR PROVIDE NOTICE TO TENANTS IN A PRIVATE DWELLING. AT PUBLIC HALL, 1st STORY

View this violation's full details & status history →
HPDClass A
NOV SENT OUT
Issued Jun 3, 2020#13682298

§ 27-2104 ADM CODE POST AND MAINTAIN A PROPER SIGN ON WALL OF ENTRANCE STORY SHOWING THE REGISTRATION NUMBER ASSIGNED BY THE DEPARTMENT AND THE ADDRESS OF THE BUILDING. AT PUBLIC HALL, 1st STORY

View this violation's full details & status history →

+ 25 more violations on record — view full report

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Title history, detailed tax records, environmental data, zoning analysis, and more from 250+ government sources.

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Frequently Asked Questions

When was 378 UNION AVE, Brooklyn built?

The building at 378 UNION AVE, Brooklyn, NY 11211 was constructed in 1931. It is classified as a condo - multi-dwelling with 6 floors and 49 units. The building area is 37,030 sqft.

Are there building permits at 378 UNION AVE, Brooklyn?

Yes. 378 UNION AVE, Brooklyn, NY 11211 has 56 building permits on record, with 38 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Alteration — Type 2 (SIGNED OFF) filed Feb 6, 2026.

Does 378 UNION AVE, Brooklyn have violations?

Yes. 378 UNION AVE, Brooklyn, NY 11211 has 30 violations on record, with 7 currently open. Breakdown: 15 DOB, 8 ECB, 7 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 378 UNION AVE, Brooklyn have docketed judgments?

Yes. 378 UNION AVE, Brooklyn, NY 11211 has 4 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $250. A docketed judgment is an enforceable money judgment entered by OATH after a hearing on a summons issued at this property; where the respondent is the property owner it can attach to the property as a lien.

What is the property tax assessment for 378 UNION AVE?

378 UNION AVE, Brooklyn, NY 11211 has an assessed market value of $658K and a total assessed value of $296K (land: $22K). Assessment data is from the NYC Department of Finance (DOF).

When was 378 UNION AVE last sold?

378 UNION AVE, Brooklyn, NY 11211 last sold for $3.7M on Jan 22, 2026. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 378 UNION AVE?

378 UNION AVE, Brooklyn, NY 11211 is zoned R7A. Zoning data is from the NYC Department of City Planning (DCP). For detailed FAR, overlays, and development rights, view the full property report on RegWatch.

How do I get a full property report for 378 UNION AVE?

Search 378 UNION AVE on RegWatch to see its public record free — violations, permits, tax records, zoning, environmental data, and more from 250+ government sources, no credit card required. A Full Analysis report adds the complete title history, owner contacts, and a downloadable PDF.

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378 UNION AVE, Brooklyn, NY 11211 — Property Records, Permits, Violations, Tax & Zoning | RegWatch