21 ST MARKS PLACE is a prewar 1899 building, 3 units in Park Slope, NYC. Owned by 21 SAINT MARKS GROUP LLC. Public records show 21 open violations, 61 311 complaints, 1 active litigation matter on file.
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Brooklyn · March 2026
Best & worst months to sign a lease
Potential savings: ~7% by timing your move to March.
Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.
Monthly counts over the last 7 years · all data sources
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
§ 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM NORTH AT EAST
§ 27-2044, 2041.1 HMC: §238 MDL and 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING THE DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM NORTH AT EAST
§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM NO ACCESS AT PUBLIC HALL, 1st STORY
Portfolio-level grade reflects the landlord's buildings across NYC, weighted by unit count. Individual building grades may differ.
View full landlord profileACRIS deeds and regulatory filings
Park Slope is the quintessential Brooklyn family neighborhood — brownstone-lined streets, Prospect Park on the doorstep, excellent schools, and a Whole Foods for the stroller set.
HPD Class A Violation — (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR
Noise - Street/Sidewalk — Loud Music/Party
Noise - Residential — Loud Music/Party
Noise - Commercial — Loud Talking
Noise - Commercial — Loud Talking
Noise - Street/Sidewalk — Loud Talking
Noise - Street/Sidewalk — Loud Music/Party
Noise - Street/Sidewalk — Loud Music/Party
Noise - Street/Sidewalk — Loud Music/Party
Dirty Condition — Trash