City inspectors were last at this 4-unit walk-up apartment building on May 8, 2026, and the resulting violation remains open.
300 20th Street is a 4-unit building in Brooklyn, New York City (BBL 3008910037). This building is associated with Frank Ko. Brix tracks 1 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 2008, this walk-up apartment building sits in Brooklyn and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.
Tenants have filed 2 HPD complaints about this building over the last five years, most often about plumbing.
What tenants have called the city about here over the last five years:
The most recent complaint on this building was filed February 7, 2025.
Conditions cited on open violations at this address:
The building last changed hands on December 18, 2018 for $2,650,000, according to recorded deeds.
Brix score: 59/100. View the Building Report on Brix.
See every NYC building owned by Frank Ko on the landlord portfolio page.
Part of Park Slope — see violations, complaints, and landlord activity across the whole neighborhood.
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Unit 1 at 300 20th Street has no open violations (2 past violations).
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