Not on the city's tax-lien sale list (2019–2025). The owner has not fallen far enough behind on property tax or water charges to be flagged for a lien sale.
Rent regulation
Likely rent-stabilized
The owner registered 10 stabilized units with New York State for 2023 — essentially all of the building's 9 apartments.
18
19
20
21
22
23
2018 — 10 units registered2023 — 10
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.
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 C · IMMEDIATELY HAZARDOUSApt 2Issued 2026-10-07
§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 2, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH
Status: Notice issued, not yet certified
CLASS C · IMMEDIATELY HAZARDOUSIssued 2019-11-125+ YRS OLDRENT-IMPAIRING
§ 27-2005, 2007 ADM CODE REMOVE THE ILLEGAL FASTENING CONSISTING OF A LOCKABLE SLIDE BOLT INSTALLED ON DOOR TO ROOF BULK HEAD , 4th STORY
Status: Certified late
CLASS C · IMMEDIATELY HAZARDOUSApt 2Issued 2019-01-075+ YRS OLDRENT-IMPAIRING
§ 27-2005, 2007 ADM CODE REMOVE THE ILLEGAL FASTENING LOCKABLE SLIDE BOLT INSTALLED AT THE INTERIOR OF DOOR IN THE ENTRANCE LOCATED AT APT 2, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST
Status: Certified late
CLASS C · IMMEDIATELY HAZARDOUSApt 2Issued 2018-11-145+ YRS OLDRENT-IMPAIRING
§ 27-2005, 2007 ADM CODE REMOVE THE ILLEGAL FASTENING LOCKABLE SLIDE BOLT AT ENTRANCE DOOR LOCATED AT APT 2, 1st STORY, 2nd APARTMENT FROM SOUTH AT WEST
Status: Notice issued, not yet certified
Housing court
1
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 2008-01-29
Heat / hot water
The building
1920
Built
4
Floors
9
Residential units
Walk-up apartments
Type
Bedbug history
No bedbugs reported
The owner filed 6 annual bedbug reports and reported no infested units. Filing with zero infestations is the compliant, reassuring case.
DOB building violations
1
Active
1
On record
0
Active, last 3 yrs
ACTIVE · LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED1993-08-16
Evictions
No executed evictions on record for this building.
Unpaid city fines
$0
Balance due (active)
0
Active violations
0
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.
Concern level4 of 4
Severe
019 open class-C HPD violations (immediately hazardous) across 9 apartments
021 of those issued in the last 3 years
035 open rent-impairing violation(s)
041 active DOB violation(s)
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.
311 complaints from tenants
43
All time
3
Last 12 months
Heat/Hot Water18
Door/Window9
Electric6
Paint/Plaster6
Unsanitary Condition3
Plumbing1
Heat/Hot WaterEntire Building2026-10-05 · open
Heat/Hot WaterEntire Building2026-03-27 · closed
Heat/Hot WaterEntire Building2026-02-13 · closed
Complaints record what a tenant reported, not a finding by the city. "Closed" often means the inspector could not gain access.
Neighborhood crime
Lower than averagevs. NYC apartment blocks
70
NYPD reports · last 12 mo
6
≈ per month
Felony30
Misdemeanor31
Violation9
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.
Ownership & money
11
Recorded sales
12
Mortgages / refinances
Last recorded sale1996-07-30 · no recorded price
Most recent mortgage2016-01-14 · $1,890,699.46
Mortgage2016-01-14$1,890,699.46
borrower 770 UNION STREET LIMITED PARTNERSHIP · lender THE DIME SAVINGS BANK OF WILLIAMSBURGH
Mortgage2011-01-20$455,494.98
borrower 770 UNION STREET LIMITED PARTNERSHIP · lender CAPITAL ONE, N.A.
Mortgage2008-04-11$494,794.94
borrower 770 UNION STREET LIMITED PARTNERSHIP · lender WASHINGTON MUTUAL BANK
Mortgage2003-04-10$286,238.74
borrower 770 UNION STREET LIMITED PARTNERSHIP · lender THE ROSLYN SAVINGS BANK
Mortgage1999-04-05$173,374.15
borrower 770 UNION STREET LIMITED PARTNERSHIP · lender CARVER FEDERAL SAVINGS BANK
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.
Landlord and related buildings
Registered owner
770 UNION STR LTD PARTNERSHIP
Head officer
GEORGE KOTSONIS
Managing agent
KOTSONIS ORGANIZATION LLC.
6 other buildings share this owner's registration contacts. Shared contacts suggest common control, but they are not proof of ownership.
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.