329 Union Street
Building overview
Data as of Jul 1, 2026
Based on open violations, 311 complaint patterns, and amenities.
Compared to typical rent for this neighborhood and bedroom count.
Highlights
What's great about this place
- Pre-war characterBuilt in 1930
Things to Know
Real considerations before you sign
- Open critical violations2 Class C (immediately hazardous)
- Significant issues across building dataSee violation history below for details
About this building
A 4-story building located in Carroll Gardens-Cobble Hill-Gowanus-Red Hook, containing 20 residential units. Built in 1930.
The neighborhood: Carroll Gardens
Brooklyn · 2,623 buildings tracked
Median asking rent: $3,900 1BR · $6,500 2BR
1 subway station nearby
4 parks · 1.3 acres · incl. Dimattina Playground
Available Units
0 active · 1 past listing
| Unit | Size | Price | Date | |
|---|---|---|---|---|
| — | 3 Bed, 1 Bath | $5,100 | Off Apr 2026 | View |
Safety & Violations
Safety Record
Active Violations
Open HPD violations on record for this building.
Top issues
- Window/Door3
- Safety2
- Structural2
Severity Key
- Class C: Immediately Hazardous (Major)
- Class B: Hazardous (Moderate)
- Class A: Non-Hazardous (Minor)
- Safety
C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 4A, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH
Oct 10, 2025Class C - Window/Door
M/D LAW ABATE THE NUISANCE CONSISTING OF UNSEALED DUMBWAITER DOORS AT ALL STOIRES AT PUBLIC HALL
Mar 29, 2019Class C - Safety
ADM CODE AND DEPT. RULES AND REGULATIONS. REMOVE THE ENCUMBRANCE OBSTRUCTING EGRESS FROM FIRE ESCAPES CONSISTING OF PROTRUDING AIR CONDITIONER AT 3RD STORY BALCONY, SOUTH STACK AT BUILDING FRONT
Mar 29, 2019Class B - General
WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE 1ST AND 2ND CONCRETE TREAD FROM BOTTOM UP AT BUILDING FRONT STOOP
Mar 29, 2019Class B - Structural
THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR ALL WALLS AND CEILINGS, IN THE ENTIRE APARTMENT LOCATED AT APT 4B, 4th STORY, 1st APARTMENT FROM WEST AT NORTH
Sep 18, 2017Class B
Market Value Estimate
Statistical estimate based on publicly available listing data. Not an appraisal. See disclaimer.Market data as of Jul 1, 2026.
Comp Matrix
| Unit Type | This Bldg | Area Avg | Diff. |
|---|---|---|---|
| Studio | — | $3,000 | — |
| 1 Bed | — | $3,900 | — |
| 2 Bed | — | $6,625 | — |
| 3+ Bed | — | $14,250 | — |
Value Verdict
Insufficient listing or market data to compute a verdict for this building.
Rent vs. Buy Analysis
No listing data available to estimate rent vs. buy.
Management & Operations
Management & Performance
Owner/Operator
329 UNION REALTY ASSOCIATES LLC
Responsiveness Score
Average time to resolve violations
Slower than NYC average (45 days)
We haven't verified this building's policies yet. Pet, utility, and leasing details appear here once we've reviewed the management company's official site — we only show policies we can source, never assumptions.
Living here — quick answers
Every answer comes from public records for this specific building — we skip questions we can't answer with data.
- How well maintained is this building?
- There are 9 open HPD violations on record, including 2 Class C (the city's most serious category).
- Is this building rent-stabilized?
- Yes — this building appears on the DHCR rent-stabilized building list. Ask the landlord to confirm whether a specific apartment is stabilized.
- How noisy is this building?
- Neighbors filed 1 noise complaint with 311 in the past year, about the neighborhood median of 1.
- How responsive is management to problems?
- Resolved violations at this building closed in about 89 days on average (NYC average is roughly 45 days). Open items are listed in the Safety & Violations section above.
- What does it cost to live here?
- We don't have current listings for this building. Typical asking rent in Carroll Gardens is about $3,900/month for a one-bedroom.