5817 21 Avenue
Brooklyn, NY 11204BBL 3-05508-0003Map
Owner of record: Greenfeld, Malka
5817 21 Avenue is a two-family home built in 1925 in Brooklyn, 11204. It has 2 residential units across 2 floors. The owner of record is Greenfeld, Malka. HPD has no housing violations on record for this property.
- HPD violations
- 0
- DOB violations
- 4
- ECB violations
- 8
- HPD complaints
- 1
What to know
No open immediately-hazardous violations among recent records.
HPD has not cited this building.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 0
No HPD violations on record
DOB building violations · 4
- Construction other optional
Dob vio issued for work without a permit. unauthorized structural work is in progress to execute vertical enlargement and add 2 more stories on an existing 2 story structure. beams, posts and other structures were added
Sep 15, 2026
Dob violation - active - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Aug 24, 2016
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Aug 24, 2016
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jul 27, 2016
Dob violation - dismissed
ECB violations · 8
- Class - 1
Fswo and ecb vio issued for work without permit. observed vertical enlargement to existing 2 story 2 family dwelling in progress, 2 additional stories added building is 4 stories. structural and partition wall
Sep 15, 2026 · Penalty $2,500
Active - Class - 1
Ecb vio issued for failing to institute and maintain safety measures or temp. const. measures. guardrails and netting are missing at leading edge in several locations at 2nd, 3rd and 4th floor to prevent possib
Sep 15, 2026 · Penalty $5,000
Active - Class - 2
Pswo and ecb violation issued for work without permit in progress. observed 4" black iron drainpipe being installed at 3rd and 4th floor lev of building. a total approx. 35 feet length. no permit on file at dob
Sep 15, 2026 · Penalty $1,250
Active - Class - 1
Ecb issued for atoi observed tarp not properly installed /maintain to property/ scaffold at exposure 1 exterior. tarp observed outside of construction site zone., safeguard public and property
Aug 11, 2026 · Penalty $10,000
Resolve - Class - 1
Failure to comply w/the comm's order contained in nov #35169006m issued on 05/01/16 & to file a c of c pursuant to 28-201.1,28-204.4 & 1rcny102-01. for work w/o a permit. remedy: comply w/comm's order &/or file
Nov 12, 2016 · Penalty $800
Resolve - Class - 1
Homeowner trampers wth removed or defaced a written and posed stop work order of the commissioner.found at the time of inspection posted notice of a stop work order was removed swo#35169006m issued on 05-01-16.
May 26, 2016 · Penalty $5,000
Resolve - Class - 1
Unlawfully continued work while under the notice of a stop work order #35169006m posted on 05-01-16 for excavation work w/o a permit. found 2 men at work in progress on the cellar level demolishing concrete
May 26, 2016 · Penalty $24,000
Resolve - Class - 1
Work w/o a permit.noted basement level being excavated.heating plant removed.new plumbing & electrical lines being installed.old plumbing lines being removed.illegal gas connections.stop all work.rem make condi
May 1, 2016 · Penalty $1,630
Resolve
Complaints
- Unsanitary condition
Garbage/recycling storage
Jul 19, 2026 · Apt BLDG
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Two-family home (B2)
- Year built
- 1925
- Floors
- 2
- Residential units
- 2
- Building area
- 1,600 ft²
- Lot area
- 1,600 ft²
- Zoning
- R5
- Community board
- 312
- Council district
- 44
- Block / lot
- 5508 / 3
- Assessed value
- $96,960
- Landmark / historic district
- No
Questions about 5817 21 Avenue
Who owns 5817 21 Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Greenfeld, Malka.
Does 5817 21 Avenue have violations?
NYC HPD has no housing violations on record for this property.
Is 5817 21 Avenue rent stabilized?
No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.
When was 5817 21 Avenue built?
City records list 1925 as the year it was built.
How many apartments are in 5817 21 Avenue?
It has 2 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.