687 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 1920
- Quieter than average for the neighborhood0 noise complaints in past year (vs 1 median)
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 Park Slope, containing 8 residential units. Built in 1920.
The neighborhood: Gowanus
Brooklyn · 3,023 buildings tracked
Median asking rent: $4,299 1BR · $6,490 2BR
1 subway station nearby
4 parks · 1.1 acres · incl. Ennis 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
- Security6
- Safety5
- Window/Door3
Severity Key
- Class C: Immediately Hazardous (Major)
- Class B: Hazardous (Moderate)
- Class A: Non-Hazardous (Minor)
- Heat/Hot Water
POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM 1 STY PUBLIC HALL & ON BOILER ROOM DOOR.
Jun 19, 2008Class C - Lead Paint
REMOVE OR COVER IN A MANNER APPROVED BY THE DEPARTMENT THE PEELING LEAD PAINT WALLS & WINDOW SILLS SOUTH ROOM 4 STY WEST APT 7 MELENCEZ 638 5257 ER1 9400 9993. , SECTION '' ''
Apr 19, 1994Class C - Security
THE BROKEN OR DEFECTIVE BELL/BUZZER/INTERCOM SYSTEM IN THE ENTRANCE LOCATED AT APT 2L, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH
Mar 6, 2023Class B - Security
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 ***MINIMUM 100 WATTS REQUIRED***
May 5, 2010Class B - Heat/Hot Water
WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE METAL CEILING BOILER ROOM CELLAR REAR.
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 | — | $3,380 | — |
| 1 Bed | — | $4,299 | — |
| 2 Bed | — | $6,620 | — |
| 3+ Bed | — | $10,000 | — |
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
687 UNION STREET., 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 24 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 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 392 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 Gowanus is about $4,299/month for a one-bedroom.