NYC Buildings
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Brooklyn
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Park Slope
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898 Union Street
Park Slope

898 Union Street,
Brooklyn, NY 11215

8 Units

•

Built in 1887

•

3 Floors

4.8(1)
Rent Stabilized Units: Yes
Good Cause Eviction: Yes
Evictions: 0
Litigation History: No
1 Year Bedbug History: No
Pet Friendly: Unknown
Building Overview
Building Report
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    Renters Recommendations

    -- of renters recommend this building

    -- of renters approve of this owner

    Reviews (1)

    Over 1 year ago
    Great landlord, Great location. Noisy street.
    Former Tenant
    Pros:
    Landlord takes great care of the building and is very responsive. Super location in Park slope near grand Army Plaza, and close to trains.
    Cons:
    Only downside is that Union Street has a lot of traffic and is noisy so I’d recommend an apartment in the back of this building
    Advice to owner:
    Update buzzer system

    Building Ratings

    Cleanliness
    Garbage Management
    Heat
    Neighbors
    Noise Levels
    Owner Responsiveness
    Pest Control
    Water Pressure

    Rents and Deposits

    -- of renters received their security deposits back
    It dummy text been reported if this building dummy electronic rent payments.
    Open Violations
    Only open violations from the last 10 years.
    Data last updated 23 minutes ago.
    The average number of violations per unit at 898 Union Street is worse than the city .
    BUILDING AVERAGE:
    0.87 violations per unit
    NEW YORK CITY AVERAGE:
    0.81 violation per unit
    flag
    Non-hazardous
    3
    class A
    i.e. no peephole on a door, or no street # on the building, unlawful keeping of animals
    MOST RECENT:
    Nov 13, 2025: § 27-2005 hmc: post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected
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    flag
    Hazardous
    2
    class B
    i.e. smoke detector issues, inadequate lighting, no lighting for stairways
    MOST RECENT:
    Nov 13, 2025: § 27-2045(b)(1)(b) hmc, § 12-06, § 12-07, § 12-09 rcny repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules that is defective in the entire apartment located at apt 4a, 3rd story, 2nd apartment from south at west
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    flag
    Immediately hazardous
    2
    class C
    i.e. rodents, pest, mold, inadequate heat or hot water, defective building parts
    MOST RECENT:
    Nov 13, 2025: § 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 2a, 1st story, 2nd apartment from south at west
    Show all
    flag
    Missing information/filings
    0
    class I
    Missing or non-compliant with administrative information orders or filings
    MOST RECENT:
    No violation found...
    Show all
    Property Owners and Associates
    K
    Kotsonis Organization Llc.
    3.9(20)
    Corporate Owner•
    29 Properties•239 Units
    Litigation History: Yes
    Evictions: 1
    N
    Nicholas Kotsonis
    3.8(8)
    Shareholder•
    16 Properties•130 Units
    Litigation History: Yes
    Evictions: 1
    U
    898 Union Street Realty LLC
    4.8(1)
    Corporate Owner•
    1 Property•8 Units
    Litigation History: No
    Evictions: 0

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