366 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 1912
- Quieter than average for the neighborhood0 noise complaints in past year (vs 1 median)
Things to Know
Real considerations before you sign
- Open critical violations1 Class C (immediately hazardous)
- Top complaint type at this building11 heat complaints in past year
- 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 16 residential units. Built in 1912.
The neighborhood: Carroll Gardens
Brooklyn · 2,623 buildings tracked
Median asking rent: $4,200 1BR · $6,500 2BR
1 subway station nearby
4 parks · 1.3 acres · incl. Dimattina Playground
Available Units
0 active
No past listings.
Past and off-market units will appear here when data is available.
Safety & Violations
Safety Record
Active Violations
Open HPD violations on record for this building.
Top issues
- Pests2
- Structural1
Severity Key
- Class C: Immediately Hazardous (Major)
- Class B: Hazardous (Moderate)
- Class A: Non-Hazardous (Minor)
- Pests
ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4O, 4th STORY, 1st APARTMENT FROM EAST AT SOUTH
Aug 5, 2019Class C - Structural
THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR WALLS AND CEILINGS IN THE ENTIRE APARTMENT LOCATED AT APT 3I, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
Nov 20, 2024Class B - Pests
IN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3I, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
Dec 16, 2016Class 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 | — | $4,200 | — |
| 2 Bed | — | $6,625 | — |
| 3+ Bed | — | $12,500 | — |
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
366 UNION LLC C/O G O
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 3 open HPD violations on record, including 1 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 0 noise complaints with 311 in the past year — none on record for this building.
- How responsive is management to problems?
- Resolved violations at this building closed in about 81 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 $4,200/month for a one-bedroom.