904 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 1910
- Quieter than average for the neighborhood0 noise complaints in past year (vs 1 median)
Things to Know
Real considerations before you sign
- Significant issues across building dataSee violation history below for details
About this building
A 4-story building located in Park Slope, containing 12 residential units. Built in 1910.
The neighborhood: Park Slope
Brooklyn · 3,806 buildings tracked
Median asking rent: $3,951 1BR · $7,150 2BR
4 subway stations nearby
1 park · 0.2 acres · incl. Gardens Of Union
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
- Structural3
- Pests2
- General2
Severity Key
- Class C: Immediately Hazardous (Major)
- Class B: Hazardous (Moderate)
- Class A: Non-Hazardous (Minor)
- Structural
WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE PLASTER BOARD CLG CELLAR CENTER TO REAR.
Jun 19, 2008Class B - Window/Door
THE BROKEN OR DEFECTIVE GLASS LOWER SASH WINDOW 3 STY NORTHEAST APT 32FRONT ROOM. LOCATED AT APT 32FRON
Jun 19, 2008Class B - General
THE MISSING GUARD RAIL REAR YARD TO CELLAR.
Jun 19, 2008Class B - Structural
THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR WALLS & CEILING 3 STY INTERMEDIATE LANDING 4 STY BULKHEAD R100.
Jun 19, 2008Class B - Security
AND MAINTAIN SUFFICIENT LIGHT OR LIGHTS OF AT LEAST 40 WATTS INCANDESCENT OR EQUIVALENT EACH, TO LIGHT ADEQUATELY FROM SUNSET TO SUNRISE THE REAR YARD.
Jun 19, 2008Class 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 | — | $3,095 | — |
| 1 Bed | — | $3,951 | — |
| 2 Bed | — | $7,150 | — |
| 3+ Bed | — | $5,654 | — |
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
904 UNION TENANTS CORP
Responsiveness Score
Average time to resolve violations
⚡ 16% faster 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 10 open HPD violations on record, none in the city's most serious category (Class C).
- 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 38 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 Park Slope is about $3,951/month for a one-bedroom.
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