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768 Union Street

171Records
11City systems
0Open violations
9.8Penalty rate
Brooklyn · ZIP 11215 · Neighborhood: Park Slope
Open in the map

171 recorded events, 1971–2026, from 11 city data systems. The city's paper trail here is mostly 61 ACRIS deeds & mortgages, 38 311 service requests, 15 DOB permits.

BoroughBrooklyn 11215
Built1920
Floors4
Res. units8
ClassC1
Owner (PLUTO)768 UNION ST LIMITEDPART
BBL3009570011
BIN3020187

Full record, year by year   Support this site

GRADE A

The city's published records show little recorded distress here in the last three years. Less recorded distress than 62% of 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty points per 10 units; this building carries 9.8. In ZIP 11215, 70% of residential buildings hold an A and 4% grade D or F. How grades work

this building
A
B
C

Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

No current HPD flags in the latest weekly snapshot: no open violations, no pending litigation, no active vacate orders, and not in the Alternative Enforcement Program.

Patterns

6 heat or hot-water complaints in the last three years (winter 2024–25: 2 · winter 2025–26: 4). Repeated winter clusters suggest a chronic heating problem.

2
’24–25
4
’25–26

No bedbug-infested units reported in the last three years of filings.

What 311 hears from this address

12 service requests in the last three years. Most common: HEAT/HOT WATER (3) · Lead (2) · UNSANITARY CONDITION (2) · Real Time Enforcement (1) · Residential Disposal Complaint (1) · Derelict Vehicles (1).

Filed construction activity

$266,500 in permitted construction work filed since 2016 (8 filings with a declared cost) — a rough measure of how actively the owner maintains the building. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.

Rent-stabilization signals

YesBuilt before 1974 (1920)
YesSix or more residential units (8)
No421-a / J-51 tax benefit on the current tax roll

2 of 3 signals present. This is the classic profile of a rent-stabilized building (pre-1974, 6+ units) — many units in such buildings remain stabilized. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).

Registered with HPD — the names behind the building

Registered owner(s)768 UNION STR. LTD. PARTNERSHIP
Head officerGEORGE KOTSONIS
Managing agentKOTSONIS ORGANIZATION LLC
Last registered2025-10-11

as filed by the owner in the building's HPD registration

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$3,108,000 $1,398,600
2026$2,885,000 $1,298,250
2027$3,328,000 $1,497,600

The city's market estimate has risen 7% between tax years 2025 and 2027.

Building systems

Heating fuelNATURALGAS

Flood exposure

Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).

Not in a hurricane evacuation zone.

Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.

No street-flooding or sewer-backup complaints on record at this address.

Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps (cloudburst), NYC hurricane evacuation zones, and 311 records for this address.

Getting around

Subway7 Av — B Q · 0.3 mi straight-line (about an 8-minute walk) · station accessibility: none
Grand Army Plaza — 2 3 · 0.3 mi straight-line (about a 9-minute walk) · station accessibility: none
BusNearest boarding stop: 7 Av / Union St — B67 B69 · 550 ft
Citi BikeCarroll St & 6 Ave · 500 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 321 William Penn. Confirm with the DOE's school search.

Distances are straight-line, not walking routes. Transit locations from the MTA and Citi Bike, bike facilities from NYC DOT, school zones from the DOE's 2024–25 maps.

Report a problem to 311

768 Union Street

Heat or hot waterHeat or hot water
Apartment maintenanceApartment maintenance
Bed bugsBed bugs
Residential pestsResidential pests
Rats or miceRats or mice
Anything elseAnything else

12 311 service requests from this address in the last three years — 3 of them about heat or hot water.

311 will ask for the address, the apartment if the problem is inside, and what's wrong. Contact details are optional for most complaints; food-poisoning reports can be anonymous. Complaints appear in the city's public 311 data, usually within a day or two, and then in the Live from 311 box on this page.

The landlord's report card

Managed by KOTSONIS ORGANIZATION LLC. — 27 buildings, 239 units. Grades across the portfolio: A20 · B6 · C1. See the whole portfolio

BuildingBoroughUnitsGrade
94 Prospect Park West BK30 A
594 6 Street BK16 B
101 Prospect Park West BK10 A
767 Union Street BK10 A
549 Bergen Street BK10 B
770 Union Street BK9 B
886 Union Street BK9 B
392 Prospect Avenue BK8 A
693 Union Street BK8 A
873 Union Street BK8 A
845 President Street BK8 A
195 5 Avenue BK8 A
896 Union Street BK8 B
768 Union Street BK8 A
298 1 Street BK8 A
898 Union Street BK8 B
664 6 Avenue BK8 A
695 Union Street BK8 A
800 President Street BK8 A
134 29 Street BK8 A
832 Union Street BK7 A
74 Douglass Street BK7 A
248 5 Avenue BK7 A
21 Sterling Place BK6 A
633 10 Street BK6 A
287 19 Street BK5 A
287 6 Avenue BK3 C

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $114,177 on 2026-09-08 (lender: JPMorgan Chase Bank, N.A.). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2026-09-08Agreement $2,700,000 — from 768 UNION STREET LIMITED PARTNERSHIP to JPMORGAN CHASE BANK, N.A. $2,700,000
2026-09-08Mortgage $114,178 — from 768 UNION STREET LIMITED PARTNERSHIP to JPMORGAN CHASE BANK, N.A. $114,178
2016-08-09Agreement $2,800,000 — from 768 UNION STREET LP to JPMORGAN CHASE BANK, N.A. $2,800,000
2016-08-09Agreement $2,800,000 — from 768 UNION STREET LP to JPMORGAN CHASE BANK, N.A. $2,800,000
2016-08-09Mortgage $974,310 — from 768 UNION STREET LP to JPMORGAN CHASE BANK, N.A. $974,310
2012-08-10Agreement $1,975,000 — from 768 UNION STREET LIMITED PARTNERSHIP to INVESTORS BANK $1,975,000
2012-08-10Mortgage $815,332 — from 768 UNION STREET LIMITED PARTNERSHIP to INVESTORS BANK $815,332
2012-08-10AL&R $1,975,000 — from 768 UNION STREET LIMITED PARTNERSHIP to INVESTORS BANK $1,975,000
2008-05-22Agreement $1,227,000 — from 768 UNION STREET to WASHINGTON MUTUAL BANK $1,227,000
2008-05-22Mortgage $483,795 — from 768 UNION STREET to WASHINGTON MUTUAL BANK $483,795
2003-08-18Mortgage $464,893 — from 768 UNION STREET LIMITED PARTNERSHIP to THE ROSLYN SAVINGS BANK $464,893
1999-04-20Mortgage $360,000 — from 768 UNION STREET LIMITED PARTNERSHIP to CARVER FEDERAL SAVINGS BANK $360,000
1999-04-05Mortgage $173,374 — from 770 UNION STREET LIMITED PARTNERSHIP to CARVER FEDERAL SAVINGS BANK $173,374
1994-08-31Mortgage $143,468 — from KOTSONIS, PENELOPE to QUEENS COUNTY SAVINGS BANK $143,468
1989-06-23Mortgage $206,000 — from KOTSONIS, PENELOPE to INDEPENDENCE SAVS BANK $206,000

Ten-year activity

20100
2017
2018
2019
2020
2021
2022
2023
13
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
2017000000
201800100111
2019302027
2020012014
2021005016
20225040110
2023304029
20243270113
2025006017
20260082212
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The full timeline

Construction 27Enforcement 4Housing & tenants 67Ownership & money 61Health & systems 12

Every one of the 171 recorded events, 1971–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 11215 · Landlord rankings · How grades work · The map · The Mice Map