723 Avenue U
Brooklyn, NY 11223BBL 3-07110-0043Map
Owner of record: 723 Ave U LLC
723 Avenue U is a mixed residential and retail building built in 1931 in Brooklyn, 11223. It has 2 residential units across 2 floors. The owner of record is 723 Ave U LLC. HPD has recorded 2 housing violations here, most recently on February 19, 2026.
- HPD violations
- 2
- DOB violations
- 0
- ECB violations
- 1
- HPD complaints
- 5
What to know
No open immediately-hazardous violations among recent records.
Date of the most recent HPD inspection that found a problem.
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 · 2
- BHazardous
Repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules missing in the entire apartment located at apt 2rr, 2nd story, 1st apartment from west at north
Feb 19, 2026 · Apt 2RR
Closed — Violation dismissed - CImmediately hazardous
Properly repair or replace the broken or defective entrance door to the building
Feb 3, 2026
Closed — Violation dismissed
DOB building violations · 0
No DOB violations on record
ECB violations · 1
- Class - 2
Found williamson gas boiler model gsa-150 cp#7820929 installed and unregistered. register boiler and correct any violating conditions and submit a certificate of correction.
Nov 16, 2021 · Penalty $312
Resolve
Complaints
- Heat/hot water
Apartment only
Jan 29, 2026 · Apt 2RR
Close - Safety
Carbon monoxide detector
Jan 29, 2026 · Apt 2RR
Close - Safety
Smoke detector
Jan 29, 2026 · Apt 2RR
Close - Heat/hot water
Apartment only
Sep 18, 2025 · Apt 2RR
Close - Appliance
Refrigerator
Jul 21, 2024 · Apt 2R
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Mixed residential and retail building (S2)
- Year built
- 1931
- Floors
- 2
- Residential units
- 2
- Building area
- 2,600 ft²
- Lot area
- 1,600 ft²
- Zoning
- R6A
- Community board
- 315
- Council district
- 48
- Block / lot
- 7110 / 43
- Assessed value
- $163,980
- Landmark / historic district
- No
HPD registration #826197, last renewed Sep 9, 2025.
Questions about 723 Avenue U
Who owns 723 Avenue U?
The owner of record in NYC Department of City Planning PLUTO data is 723 Ave U LLC.
Does 723 Avenue U have violations?
Yes. NYC HPD has recorded 2 housing violations at this property.
Is 723 Avenue U 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 723 Avenue U built?
City records list 1931 as the year it was built.
How many apartments are in 723 Avenue U?
It has 2 residential units and 3 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.