Building health · BROOKLYN, NY

637 St Marks Ave

built 1900 · 4 stories · 15 apartments
Registered with the city: WATERSTONE GROUP LLC · 53 other buildings here list it; PROSPECT HEIGHTS 637-641 REALTY LLC
Heat or hot water: 31 reports to the city since 2024
2024Heat or hot water · Jan 2024 · 3 reports (24 complaints)Jan 2, 2024Jan 2, 2024 (2nd)Jan 3, 2024Jan 3, 2024 (2nd)Jan 3, 2024 (3rd)Jan 4, 2024Jan 4, 2024 (2nd)Jan 4, 2024 (3rd)Jan 4, 2024 (4th)Jan 4, 2024 (5th)Jan 5, 2024Jan 5, 2024 (2nd)Jan 5, 2024 (3rd)Jan 6, 2024Jan 7, 2024Jan 8, 2024Jan 8, 2024 (2nd)Jan 9, 2024Jan 9, 2024 (2nd)Jan 10, 2024Jan 11, 2024Jan 11, 2024 (2nd)Jan 19, 2024Jan 20, 2024Heat or hot water · Apr 2024 · 2 reports (2 complaints)Apr 3, 2024Apr 18, 2024Heat or hot water · Jun 2024 · 2 reports (2 complaints)Jun 2, 2024Jun 19, 2024Heat or hot water · Jul 2024 · 2 reports (7 complaints)Jul 7, 2024Jul 11, 2024Jul 13, 2024Jul 21, 2024Jul 22, 2024Jul 23, 2024Jul 23, 2024 (2nd)Heat or hot water · Aug 2024 · 2 reports (3 complaints)Aug 6, 2024Aug 29, 2024Sep 1, 2024Heat or hot water · Sep 2024 · 2 reports (8 complaints)Sep 6, 2024Sep 7, 2024Sep 7, 2024 (2nd)Sep 11, 2024Sep 12, 2024Sep 13, 2024Sep 15, 2024Sep 18, 2024Heat or hot water · Dec 2024 · 2 reports (5 complaints)Dec 15, 2024Dec 23, 2024Dec 23, 2024 (2nd)Dec 23, 2024 (3rd)Dec 23, 2024 (4th)
2025Heat or hot water · Feb 2025 · 3 reports (6 complaints)Feb 3, 2025Feb 12, 2025Feb 19, 2025Feb 19, 2025 (2nd)Feb 19, 2025 (3rd)Feb 22, 2025Heat or hot water · Jun 2025 · 1 report (2 complaints)Jun 12, 2025Jun 16, 2025Heat or hot water · Jul 2025 · 1 report (2 complaints)Jul 21, 2025Jul 27, 2025Heat or hot water · Aug 2025 · 2 reports (6 complaints)Aug 5, 2025Aug 9, 2025Aug 17, 2025Aug 17, 2025 (2nd)Aug 17, 2025 (3rd)Aug 18, 2025Heat or hot water · Sep 2025 · 3 reports (11 complaints)Sep 7, 2025Sep 7, 2025 (2nd)Sep 8, 2025Sep 8, 2025 (2nd)Sep 20, 2025Sep 20, 2025 (2nd)Sep 20, 2025 (3rd)Sep 21, 2025Sep 30, 2025Oct 5, 2025Oct 5, 2025 (2nd)Heat or hot water · Oct 2025 · 3 reports (14 complaints)Oct 10, 2025Oct 14, 2025Oct 16, 2025Oct 17, 2025Oct 20, 2025Oct 22, 2025Oct 22, 2025 (2nd)Oct 23, 2025Oct 23, 2025 (2nd)Oct 26, 2025Oct 27, 2025Oct 27, 2025 (2nd)Oct 28, 2025Oct 29, 2025Heat or hot water · Dec 2025 · 1 report (4 complaints)Dec 27, 2025Dec 27, 2025 (2nd)Dec 27, 2025 (3rd)Dec 27, 2025 (4th)
2026Heat or hot water · Jun 2026 · 1 report (2 complaints)Jun 13, 2026Jun 14, 2026Heat or hot water · Jul 2026 · 1 report (2 complaints)Jul 23, 2026Jul 23, 2026 (2nd)
Source: HPD Complaints and Problems · as of 2026-10-22

By apartment

23 of 15 apartments named in a city record
Apt 1Apt 1BApt 1CApt 1FApt 2BApt 2CApt 2DApt 2F+15 more

Also reported

2024 – 2026

A filled month had a report to HPD; darker means more than one, and the past year is brightest. Tap one to read it. Complaints within a week count as one report. Records list complaints filed, not conditions found.

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