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S

Sean Sinnreich

Site Manager·1 building·4 units
3.5

2 reviews

Highlights

No
Evictions
No
Litigation cases

About Sean Sinnreich

Sean Sinnreich is a mixed-profile site manager. Across their buildings, tenants rate them 3.5/5 across 2 reviews, with 100% recommending their buildings and 100% approving of them as an owner or associate. Their portfolio records 0 evictions, 0 open violations, and 0 litigation cases. Data last updated July 28, 2026. Across Prospect Heights in Brooklyn, Sean Sinnreich is a site manager associated with 1 building and 4 units. The portfolio is concentrated in Prospect Heights in Brooklyn. The building was constructed in 1880, making it a historic addition to the neighborhood. The property is mostly low-rise. There are no rent-stabilized apartments among the associated units. Renters can review each building's ratings, reviews, and public records on its own page.

Renter recommendations

-%

Renters recommend associated buildings

-%

Renters approve of this owner or associate

Reviews

Former tenant·Over 1 year ago

Nice apartment, super/maintenance unresponsive

Pros

Beautiful area, amazing roof, lots of space and natural light, lots of kitchen space and big fridge. Nice layout!

Cons

1. the connectivity in the building is not great. two / three rommies work from home and it goes out almost everyday, when we watch tv etc. it’s not just us, it’s the whole building, we’ve asked other tenants. we even asked optimum to come check the wifi but they charge an $80 fee if it’s the building not the wifi itself. 2. it gets pretty hot up here in the winter. you can’t control the heat, it’s controlled by the building. the building barely ever turns it off from sept - may. 3. there’s an ant problem in the kitchen whenever it gets warm. we’ve also found multiple cockroaches/ water bugs in various locations but never bed bugs. 4. In the winter, there’s an annoying tapping noise in two of the rooms because the pipes freeze. It makes it hard to sleep and i had to buy headphones. I asked the building to bleed the pipes but they didn’t.

Advice to the owners

bleed the pipes and fix connectivity pls!

Former tenant·Over 3 years ago

Solid but unresponsive

Pros

Lovely area of Brooklyn Near prospect park

Cons

Unresponsive landlord for some minor issues. Nothing major has come up yet, so I can’t fairly judge those.

Advice to the owners

Communicate with your tenants and resolve the issues they raise.

Buildings associated with SEAN SINNREICH

  • 603 Vanderbilt Avenue
    Good cause

    603 Vanderbilt Avenue

    3.5(2)

    Prospect Heights

603 Vanderbilt Avenue
Good cause

603 Vanderbilt Avenue

3.5(2)

Prospect 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 averageLess than 0.01Violations per unit
NYC average0.81Violations per unit
0Class C
Immediately hazardous

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

0Class B
Hazardous

Smoke detector issues, inadequate lighting, no lighting for stairways

0Class 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

Sean Sinnreich has an average tenant rating of 3.5 out of 5 across 2 reviews.

100% of tenants who reviewed buildings managed by Sean Sinnreich would recommend living there.

Sean Sinnreich has no housing court litigation cases across their portfolio.

Sean Sinnreich has no recorded evictions across their portfolio.

100% of tenants who reviewed a building managed by Sean Sinnreich approve of how it is run.

Sean Sinnreich has not appeared on the NYC worst landlords list.

Sean Sinnreich owns or manages 1 building totalling 4 units.

S

Sean Sinnreich

Site Manager·1 building·4 units
3.5

2 reviews

Follow us

For renters

Apartments for rent in NYCRenting tips and resourcesVerified apartment listings in NYCBuildings and owners in NYCOwners 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

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© 2026 Openigloo Inc. All rights reserved.