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J

Jeffrey Groner

Head Officer·18 buildings·180 units
3.0

17 reviews

Highlights

11
Evictions
34
Litigation cases

About Jeffrey Groner

Jeffrey Groner is a poorly regarded head officer. Across their buildings, tenants rate them 3.0/5 across 17 reviews, with 42% recommending their buildings and 48% approving of them as an owner or associate. Their portfolio records 11 evictions, 107 open violations, and 34 litigation cases. Data last updated September 9, 2026. Associated with 18 buildings and 180 units across Brooklyn, Jeffrey Groner is a head officer responsible for a portfolio that spans construction eras from the 1900s to the 2000s, reflecting multiple generations of development. The portfolio spans multiple neighborhoods across Brooklyn, including Crown Heights, Prospect Lefferts Gardens, Prospect Heights, Park Slope, Bedford-Stuyvesant, Bushwick, Stuyvesant Heights, and Gowanus. The buildings are mostly low-rise. A majority of the associated buildings have rent-stabilized apartments. Prospective renters can find building-level ratings, reviews, and open-data records on the associated building pages.

Renter recommendations

-%

Renters recommend associated buildings

-%

Renters approve of this owner or associate

Review summary

Summarized from anonymous rental reviews on Openigloo.

Tenant reviews for buildings managed by Jeffrey Groner reveal a mixed experience. Pros include spacious apartments, generally responsive management, and safe neighborhoods with quiet neighbors in some locations. However, persistent pest issues, particularly with roaches and mice, are frequently mentioned, along with varying heat reliability especially during winter. Garbage management and building cleanliness show inconsistency across properties. Some residents report slow or difficult owner responsiveness and occasional noise disturbances from on-site activities or nearby venues. Overall, renters can expect a decent living space but should be prepared for pest challenges and potentially slow maintenance responses.

Reviews

Former tenant·28 minutes ago

It's just Okay

Pros

renovated unit exposed brick

Cons

issue with roaches in unit inaccurate charging for electrical

Former tenant·11 minutes ago

Lived here in 2020

Pros

I think that this is near the train

Cons

No heat !!

Advice to the owners

Please do repairs urgently when asked and give heat when asked !!

Buildings associated with JEFFREY GRONER

  • 260 Halsey Street
    Good cause

    260 Halsey Street

    Bedford-Stuyvesant

  • 262 Halsey Street
    Good cause

    262 Halsey Street

    Bedford-Stuyvesant

  • 944 Marcy Avenue
    Rent-stabilized

    944 Marcy Avenue

    2.0(1)

    Bedford-Stuyvesant

  • 761 Prospect Place
    Rent-stabilized

    761 Prospect Place

    3.8(2)

    Crown Heights

260 Halsey Street
Good cause

260 Halsey Street

Bedford-Stuyvesant

262 Halsey Street
Good cause

262 Halsey Street

Bedford-Stuyvesant

944 Marcy Avenue
Rent-stabilized

944 Marcy Avenue

2.0(1)

Bedford-Stuyvesant

761 Prospect Place
Rent-stabilized

761 Prospect Place

3.8(2)

Crown Heights

Building ratings

Cleanliness

-

Trash management

-

Pest control

-

Water pressure

-

Heat

-

Neighbors

-

Noise levels

-

Owner responsiveness

-

Cleanliness

-

Trash management

-

Pest control

-

Water pressure

-

Heat

-

Neighbors

-

Noise levels

-

Owner responsiveness

-

Rents and deposits

-

Renters received their security deposits back

-

Electronic rent payments

Open violations

From past 10 years · Updated 5 days ago

Average violations per unit for this owner or associate is better than the city average.

Owner average0.59Violations per unit
NYC average0.81Violations per unit
30Class C
Immediately hazardous

Rodents, pest, mold, inadequate heat or hot water, defective building parts

45Class B
Hazardous

Smoke detector issues, inadequate lighting, no lighting for stairways

32Class A
Non-hazardous

No peephole on a door, no street number on the building, unlawful keeping of animals

0Class I
Missing info

Missing or non-compliant with administrative information orders or filings

FAQs

Jeffrey Groner has an average tenant rating of 3.0 out of 5 across 17 reviews.

Buildings managed by Jeffrey Groner average 0.59 open violations per unit, fewer than the citywide average of 0.81.

42% of tenants who reviewed buildings managed by Jeffrey Groner would recommend living there.

Jeffrey Groner owns or manages 18 buildings totalling 180 units.

Jeffrey Groner has 34 housing court litigation cases across their portfolio.

Jeffrey Groner has not appeared on the NYC worst landlords list.

48% of tenants who reviewed a building managed by Jeffrey Groner approve of how it is run.

Jeffrey Groner has 11 recorded evictions across their portfolio.

J

Jeffrey Groner

Head Officer·18 buildings·180 units
3.0

17 reviews

Follow us

For renters

Apartments for rent in NYCRenting tips and resourcesVerified apartment listings in NYCBuildings and owners in NYCNYC market analysis reports

For landlords

iglooIQListings quality policy

Trending neighborhoods

Apartments in AstoriaApartments in Bedford-StuyvesantApartments in BushwickApartments in ChelseaApartments in Financial DistrictApartments in SohoApartments in Upper East SideApartments in Upper West SideApartments in West VillageApartments in Williamsburg

NYC boroughs

Apartments in BronxApartments in BrooklynApartments in ManhattanApartments in QueensApartments in Staten Island

2-bedroom apartments

2-bedroom apartments in Bronx2-bedroom apartments in Brooklyn2-bedroom apartments in Manhattan2-bedroom apartments in Queens2-bedroom apartments in Staten Island

Support

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Legal

Terms of usePrivacy policyCommunity guidelinesAgency disclosureFair housing disclosureStandard operating procedures
© 2026 Openigloo Inc. All rights reserved.

Available apartments associated with JEFFREY GRONER

    • 853 Halsey Street #6C, Brooklyn, NY 11233 apartment_living_room 1
    Future
    Rent-stabilized
    Stuyvesant Heights·1 bed, 1 bath
    2.3(1)

    853 Halsey Street #6C

  • 853 Halsey Street #6C, Brooklyn, NY 11233 apartment_living_room 1
Future
Rent-stabilized
Stuyvesant Heights·1 bed, 1 bath
2.3(1)

853 Halsey Street #6C