The owner filed 6 annual bedbug reports and reported no infested units. Filing with zero infestations is the compliant, reassuring case.
Rent regulation
Likely rent-stabilized
The owner registered 48 stabilized units with New York State for 2023 — essentially all of the building's 48 apartments.
22
23
2022 — 48 units registered2023 — 48
421-a tax benefit · expires ~2034
A 421-a building's rent stabilization is tied to this tax benefit and generally ends when it expires — here, around 2034 (approximate, from DOF exemption records). Confirm your unit's status with NYS HCR.
No public data says which specific apartment is stabilized.
Registration counts apply to the building, not to unit numbers. To confirm your own apartment, request your rent history from New York State Homes and Community Renewal — it is free and takes a few weeks.
Posted at the entrance of buildings over 25,000 sq ft (Local Law 33). It rates energy efficiency — a proxy for comfort and utility cost — not the landlord's upkeep.
Evictions
No executed evictions on record for this building.
HPD housing-maintenance violations
3
Open now
135
On record
0
Open Class C
0
Open Class B
3
Open Class A
Class C is immediately hazardous, Class B is hazardous, Class A is non-hazardous. A violation stays open until HPD certifies the repair, so some open items may already be fixed.
CLASS A · NON-HAZARDOUSIssued 2026-06-03
§ 53, 187, 231 M/D LAW AND DEPARTMENT RULES AND REGULATIONS. PROVIDE A SHOE PROPERLY SECURED TO BOTTOM OF STRING OF DROPLADDER (SHOE) USING APPROPRIATE NUTS AND BOLTS AT 1ST FROM SOUTH AT EAST EXTERIOR WALL (BUILDING FRONT) AT FIRE ESCAPE
Status: Notice issued, not yet certified
CLASS A · NON-HAZARDOUSIssued 2026-06-03
§ 27-2053 ADM CODE 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
Status: Notice issued, not yet certified
CLASS A · NON-HAZARDOUSIssued 2026-06-03
§ 26-1103 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
Status: Notice issued, not yet certified
Housing court
3
Cases on record
0
Open now
1
Tenant-brought
0
Harassment found
0
With a judgment
Most cases are tenants taking the owner to court to force repairs. A case is not proof of wrongdoing; a harassment finding or judgment is a court ruling against the owner.
CLOSEDOpened 2017-12-12
Heat / hot water
CLOSEDOpened 2015-09-29
Access Warrant - Non-Lead
CLOSEDOpened 2014-02-18
Access Warrant - Non-Lead
Neighborhood crime
Much higher than averagevs. NYC apartment blocks
506
NYPD reports · last 12 mo
42
≈ per month
Felony119
Misdemeanor315
Violation72
NYPD complaints reported within about 1,000 ft (a few blocks) in the last year, by severity. This reflects what gets reported and where police are active as much as actual safety, and busier, denser, higher-foot-traffic blocks log more. Locations are approximate — the NYPD shifts each report to the nearest corner for privacy — so read this as rough context, not a safety score.
City debt & tax-lien sale
Flagged for the 2020 tax-lien sale
The owner owes enough in property taxes (and possibly water charges) to be listed for the city's tax-lien sale (most recently a 60-day notice). A listing can still be cured by paying or entering a payment plan.
2
Years listed
2020
Most recent
60-day noticeincl. property tax2020-03-10
90-day noticeincl. property tax2020-02-12
90-day noticewater/sewer only2019-04-17
From DOF lien-sale lists (2019–2025). Financial distress is not proof of neglect, but owners behind on what they owe the city more often let repairs slide. Debt may since have been paid.
DOB building violations
1
Active
35
On record
0
Active, last 3 yrs
ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED2023-06-20
VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION
311 complaints from tenants
21
All time
3
Last 12 months
Heat/Hot Water13
Unsanitary Condition4
Appliance2
General1
Plumbing1
Heat/Hot WaterEntire Building2026-05-31 · closed
Heat/Hot WaterEntire Building2026-05-27 · closed
Heat/Hot WaterEntire Building2025-12-21 · closed
Complaints record what a tenant reported, not a finding by the city. "Closed" often means the inspector could not gain access.
Unpaid city fines
$28,215
Balance due (active)
6
Active violations
4
Lost by default
DOB violations adjudicated by OATH carry money penalties. "Lost by default" means the owner never appeared at the hearing. An unpaid balance is a stronger "ignoring the city" signal than a raw violation count.
ConstructionClass 22026-03-10$1,250 penalty
DEFAULTConstructionClass 22025-12-01$1,280 due
DEFAULTBoilersClass 22025-12-01$1,280 due
DEFAULTConstructionClass 12025-12-01$25,000 due
Concern level3 of 4
High
011 active DOB violation(s)
023 open HPD violation(s)
034 DOB fines lost by default (unpaid)
How this is set: open hazardous violations measured against the building's size, then raised by strong distress signals — HPD's enforcement program, court harassment findings, recent evictions, unpaid DOB fines, open housing-court cases, and a sold tax lien. Neighborhood noise and crime are not part of it. It describes the public record, not the condition of any one apartment, and a quiet record is not proof of a good building.
Landlord and related buildings
Registered owner
731 SOUTHERN LLC
Head officer
Aaron AUSCH
Managing agent
731 Southern LLC
No other buildings found sharing this building's registered contact.
This building and the landlord's others
This building
Neighborhood noise
Higher than averagevs. NYC apartment blocks
416
Noise reports · last 12 mo
35
≈ per month
44
% from neighbors
Residential183
Street/Sidewalk100
Vehicle89
Commercial27
Unspecified17
311 noise complaints within about 1,000 ft (a few blocks) in the last year. Most reports here are about outdoor noise (mostly residential) — street life and traffic more than neighbors. This counts how often people call 311, which tracks how densely populated and busy an area is as much as how loud it is — it is not a sound measurement.
Ownership & money
6
Recorded sales
5
Mortgages / refinances
Last recorded sale2020-09-22 · no recorded price
Most recent mortgage2024-11-07 · $1,225,000
Mortgage2024-11-07$1,225,000
borrower 731 SOUTHERN BOULEVARD LLC · lender POPULAR BANK
Mortgage2020-09-22$1,191,011.46
borrower 731 SOUTHERN LLC · lender POPULAR BANK
Sale2020-09-22no recorded price
731 SOUTHERN BOULEVARD LLC → 731 SOUTHERN LLC
Sale2018-09-05no recorded price
COMMISSIONER OF FINANCE OF THE CITY OF NEW YORK → NEIGHBORHOOD RESTORE HOUSING DEVELOPMENT FUND CORP
Sale2012-03-14no recorded price
LISKA NY, INC. → 731 SOUTHERN BOULEVARD LLC
From ACRIS recorded documents. Amounts are often $0 or nominal for transfers between related parties, and LLCs can obscure who is really involved — treat this as public-record context, not a valuation.