Park Slope, Brooklyn: building violations, landlords and rent stabilization

Park Slope, Brooklyn, has 3,327 graded residential buildings with 3 or more units, as of Oct 26, 2026. By grade: 1,783 A, 358 B, 575 C, 418 D and 193 F. The median building has 1.3 open HPD violations per 10 units, against 3.3 across Brooklyn. 3,766 of its 32,322 residential units (12%) are rent-stabilized on the latest Department of Finance tax bills on file. The most common housing complaints to 311 in the last 12 months were heat and hot water (1,955), unsanitary condition (579), and plumbing (411).

Park Slope by the numbers

6,477 residential buildings (32,322 units) on record. 24,646 open HPD violations (3,026 class C, immediately hazardous). 3,653 housing complaints to 311 in the last 12 months, 55 executed evictions in 3 years, 104 reported bedbug infestations in 3 years. 462 buildings have rent-stabilized units on their tax bills.

Worst five in Park Slope

Most open HPD violations per 10 units. Graded rental buildings with 6 or more units; co-ops, condos and NYCHA are left out. Only buildings with an HPD violation issued in the last 24 months or a 311 housing complaint in the last 12 are listed.

  1. 713 Sackett Street: 242.9 open violations per 10 units (170 open, 7 units), grade F, owner: SACKETT SLOPE 713 LLC
  2. 226 7th Avenue: 221.7 open violations per 10 units (133 open, 6 units), grade F, owner: 226 7TH AVENUE INVESTORS LLC
  3. 752 Union Street: 193.3 open violations per 10 units (116 open, 6 units), grade F, owner: 210 6TH AVENUE LLC ASSOCIATES
  4. 335 3rd Street: 152.5 open violations per 10 units (122 open, 8 units), grade F, owner: 3RD STREET PROPERTIES LLC
  5. 548 11th Street: 152.5 open violations per 10 units (122 open, 8 units), grade F, owner: Individual owner

Best five in Park Slope

Fewest open HPD violations per 10 units, then highest score and most units. The same rule as the worst five, recently active buildings only. Best buildings citywide.

  1. 461 Dean Street: 0 open violations per 10 units (0 open, 363 units), grade A, owner: USPA 461 DEAN LLC
  2. 91 4th Avenue: 0 open violations per 10 units (0 open, 247 units), grade A, owner: 79 4TH AVENUE LLC & 85 4TH AVENUE LLC
  3. 487 4th Avenue: 0 open violations per 10 units (0 open, 44 units), grade A, owner: 487 4th Avenue Managers LLC (City program owner (HDFC))
  4. 575 3rd Street: 0 open violations per 10 units (0 open, 36 units), grade A, owner: 575 THIRD REALTY LLC
  5. 329 9th Street: 0 open violations per 10 units (0 open, 19 units), grade A, owner: JARY PARK PLAZA INC

Largest landlords in Park Slope

By units in Park Slope, among portfolios of 3 or more buildings and 50 or more units citywide. Names are as filed on HPD registrations. How totals are counted. Report an error.

  1. HARRY EINHORN (head officer on HPD registrations): 1,271 units in 6 buildings
  2. RICHARD F MASON (head officer on HPD registrations): 858 units in 1 building
  3. GLEN BROWN (head officer on HPD registrations): 330 units in 39 buildings
  4. Wesley Wilson (head officer on HPD registrations): 303 units in 1 building
  5. JOSEPH BERMAN (head officer on HPD registrations): 247 units in 27 buildings

Nearby neighborhoods

Sources: NYC HPD housing maintenance code violations, HPD property registrations and housing litigation, 311 service requests, DOB violations, NYC Marshals evictions, and HPD bedbug filings from NYC Open Data, plus rent-stabilized unit counts from NYC Department of Finance tax bills. How grades work.