21 Plaza Street West
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
Limited highlights data — verify with a tour.
Things to Know
Real considerations before you sign
- Open critical violations3 Class C (immediately hazardous)
- Significant issues across building dataSee violation history below for details
About this building
A 6-story building located in Park Slope, containing 70 residential units. Built in 1941.
The neighborhood: Park Slope
Brooklyn · 3,806 buildings tracked
Median asking rent: $4,048 1BR · $6,800 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
- Structural2
- Water/Plumbing2
- Gas1
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 HINGE AT HOPPER DOOR AT COMPACTOR CLOSET AT SOUTH SECTION AT PUBLIC HALL, 1st STORY
Oct 30, 2023Class C - Water/Plumbing
M/D LAW ABATE THE NUISANCE CONSISTING OF CONCEALED WATER LEAK CEILING IN EAST ROOM 2 STY 2ND FROM EAST APT AT NORTH 2M ER1
Aug 18, 2009Class C - Water/Plumbing
M/D LAW ABATE THE NUISANCE CONSISTING OF CONCEALED WATER LEAK CEILING IN BATHROOM 2 STY 2ND APT FROM EAST AT NORTH APT 2M ER1
Aug 18, 2009Class C - Admin
ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCYS HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD. AT PUBLIC HALL, 1st STORY
Oct 30, 2023Class A - Structural
POST SIGN ON WALL OF ENTRANCE STORY BEARING NAME, ADDRESS INCLUDING APARTMENT NUMBER IF ANY, AND TELEPHONE NUMBER OF SUPERINTENDENT, JANITOR OR HOUSEKEEPER. AT PUBLIC HALL, 1st STORY
Oct 30, 2023Class A
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 | — | $4,047.5 | — |
| 2 Bed | — | $6,800 | — |
| 3+ Bed | — | $6,574.5 | — |
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
25 PLAZA TENANTS CORP.
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 8 open HPD violations on record, including 3 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 86 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 $4,048/month for a one-bedroom.