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910 Union Street

427Records
13City systems
0Open violations
0Penalty rate
Brooklyn · ZIP 11215 · Neighborhood: Park Slope
Open in the map

427 recorded events, 2007–2026, from 13 city data systems. The city's paper trail here is mostly 247 ACRIS deeds & mortgages, 86 311 service requests, 32 DOB job filings.

BoroughBrooklyn 11215
Built1931
Floors7
Res. units15
ClassRM
Owner (PLUTO)UNAVAILABLE OWNER
BBL3010667503
BIN—

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 100% 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 0. 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

No heat or hot-water complaints in the last three years.

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

What 311 hears from this address

26 service requests in the last three years. Most common: Illegal Parking (17) · Noise (2) · Blocked Driveway (1) · Illegal Dumping (1) · New Tree Request (1) · Lead (1).

Filed construction activity

$59,000 in permitted construction work filed since 2016 (4 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 (1931)
YesSix or more residential units (15)
Yes421-a / J-51 tax benefit on the current tax roll

3 of 3 signals present. Buildings receiving 421-a or J-51 benefits are generally required to register their units as rent-stabilized for the duration of the benefit. 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)PARK UNION CONDOMINIUM
Head officerMELISSA ZIMMERMAN
Managing agentMAXWELL-KATES INC.
Last registered2025-09-25

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$376,424 $169,391
2026$400,658 $180,297
2027$440,189 $198,085

The city's market estimate has risen 17% between tax years 2025 and 2027.

Tax exemptions on the roll: 421A 15 YR CAP

For property tax, the Department of Finance values this condo as if it were a rental building. Its 2023 estimate: gross income $944,731 a year ($40.94 per sq ft), operating expenses $330,679 ($14.33 per sq ft), net operating income $614,052. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.

Building systems

Facade (Local Law 11)SAFE (cycle 9)

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

SubwayGrand Army Plaza — 2 3 · 850 ft straight-line (about a 4-minute walk) · station accessibility: none
7 Av — B Q · 0.3 mi straight-line (about an 8-minute walk) · station accessibility: none
BusNearest boarding stop: Grand Army Plaza / Flatbush Av — B41 · 600 ft
Citi BikeGrand Army Plaza & Plaza St West · 200 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

910 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

26 311 service requests from this address in the last three years.

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 MAXWELL-KATES INC. — 196 buildings, 14,349 units. Grades across the portfolio: A182 · B9 · C2 · F1. See the whole portfolio

BuildingBoroughUnitsGrade
1767 2 Avenue MN650 B
10 Union Square East MN645 A
382 Central Park West MN414 A
415 East 37 Street MN410 A
155 East 34 Street MN330 A
1540 York Avenue MN296 A
220 East 65 Street MN281 A
550 Vanderbilt Avenue BK278 A
400 East 70 Street MN216 A
35-20 Leverich Street QN214 B
17 Ft George Hill MN204 A
1562 York Avenue MN189 A
110 West End Avenue MN186 A
425 East 79 Street MN186 A
441 2 Avenue MN183 A
390 Maryland Avenue SI178 B
34-20 78 Street QN162 A
77 Charlton Street MN162 A
350 Bleecker Street MN137 A
530 East 72 Street MN135 A
310 East 23 Street MN134 A
22 West 15 Street MN134 A
152 West 137th Street MN134 A
1511 Independence Avenue BK134 A
10 Plaza St East BK134 A
1285 1 Avenue MN133 A
1831 Madison Avenue MN129 A
302 West 12 Street MN128 A
10 Bay Street Landing SI128 A
200 East 84 Street MN126 A
372 5 Avenue MN123 A
50 East 8 Street MN121 A
151 East 76 Street MN120 A
36 Hamilton Avenue SI120 A
207 East 74 Street MN120 A
62 West 62 Street MN120 A
1681 2 Avenue MN118 A
171 West 131 Street MN116 A
220 East 67 Street MN115 A
45 Christopher Street MN112 A
180 East 79 Street MN112 A
90-11 35 Avenue QN111 B
260 Park Avenue South MN108 A
1056 Lexington Avenue MN104 A
349 East 49 Street MN103 A
240 East 46 Street MN100 A
20 Plaza St East BK100 A
140 East 40 Street MN99 A
1218 2 Avenue MN99 A
670 West End Avenue MN95 A
140 8 Avenue BK94 A
525 East 82 Street MN94 A
201 West 74 Street MN92 A
141 East 55 Street MN87 A
270 Broadway MN87 A
215 East 79 Street MN87 A
285 Riverside Drive MN86 A
23 West 116 Street MN83 A
475 Avenue of the Americas MN82 A
402 East 90 Street MN82 A

showing 60 of 196 buildings

Sales, deeds & mortgages

DateRecordAmountPer res. unit
2026-06-15Deed $2,815,000 — from AYAD, MICHAEL to ROBERTS, MARGARET; LUSKIN, JEREMY $2,815,000
2026-06-05Sold for $2,815,000 $2,815,000 $187,667
2026-05-19Deed $2,825,000 — from RUBIN, TRACEY; RUBIN, DANIEL to HUANG, MARCY; WAINGER, ALEX $2,825,000
2026-05-11Sold for $2,825,000 $2,825,000 $188,333
2025-12-22Deed $930,000 — from TING W. CHIU, AS TRUSTEE; ALICE TSE, AS TRUSTEE; ALICE CHIU, AS TRUSTEE; TING W. CHIU AND to NIGAM, SOMESH $930,000
2025-12-10Sold for $930,000 $930,000 $62,000
2025-12-10Sold for $930,000 $930,000 $62,000
2025-08-26Deed $2,575,000 — from TORTO, MICHAEL; CARTER, ELIZABETH to PACKER, DAVID; HSIUNG, MAY-HSIN $2,575,000
2025-08-19Sold for $2,575,000 $2,575,000 $171,667
2025-08-19Sold for $2,575,000 $2,575,000 $171,667
2023-11-27Deed $865,000 — from LOPEZ, KIM ARVIN to TSE, ALICE $865,000
2023-11-15Sold for $865,000 $865,000 $57,667
2023-06-05Agreement $1,210,000 — from FOGUEL, LIDOR; KOSUBINSKY, CHRISTOPHER JAMES to WELLS FARGO BANK, N.A. $1,210,000
2023-05-31Deed $2,510,000 — from JEROME W. DEROY, TRUSTEE; THE JEROME W. DEROY LIVING TRUST DATED 0 to KOSUBINSKY, CHRISTOPHER JAMES; FOGUEL, LIDOR $2,510,000
2023-05-31Mortgage $173,541 — from FOGUEL, LIDOR; KOSUBINSKY, CHRISTOPHER JAMES to WELLS FARGO BANK, N.A $173,541

Ten-year activity

50250
49
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
2017022522049
20180189119
201903515225
202022118023
202100415019
20224054114
202330711021
202400143017
20250049013
2026001011021
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The full timeline

Construction 48Enforcement 14Housing & tenants 95Ownership & money 266Health & systems 4

Every one of the 427 recorded events, 2007–2026, 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