636 Humboldt Street
636 Humboldt Street in Greenpoint, Brooklyn, has 2 open HPD violations, and 6 of 6 units are rent-stabilized, as of Oct 26, 2026. StreetSpy grade: B (79/100).
Multi-family walk-up · 6 units · Built 1931
StreetSpy grade: B (Good, 79/100)
- 2 open housing violations, none in the most serious class.
- The owner's bedbug filings report no infested units in the last 3 years.
- 6 of 6 units are rent-stabilized.
- Repairs: Low (2 open), records as of Oct 26, 2026
- Heat and hot water: 1 complaint, 12 mo, records as of Oct 25, 2026
- Pests: Clear (Owner reported none, 3 yr), records as of Oct 28, 2026
- Safety: Medium (1 open DOB violation), records as of Oct 26, 2026
- Registration: Expired Sep 1, 2025, records as of Oct 3, 2026
Housing code violations (HPD)
2 open violations: 0 class C (immediately hazardous), 1 class B, 1 class A. 1 issued in the last 12 months. 12 on record. Oldest open violation issued 2009-09-03. Newest violation issued 2026-05-05.
HPD recorded no violation closed here in the last 12 months.
- Class B: Lighting defect (entrance). PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING 200 WATTS MINIMUM REQUIRED., issued 2009-09-03. HPD violation 1597279
- Class A: Bedbugs. (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., issued 2026-05-05. HPD violation 18885110
311 housing complaints
1 in the last 12 months, 1 in 5 years. Most common: Heat/Hot Water (1).
Bedbugs
The owner reported 0 infested units in the last 3 years of filings. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.
- 2026: No bedbug filing on record for this year
- 2025: No bedbug filing on record for this year
- 2024: Owner reported 0 infested units
- 2023: Owner reported 0 infested units
- 2022: No bedbug filing on record for this year
- 2021: No bedbug filing on record for this year
Buildings department (DOB)
1 open DOB violation. 1 DOB violation on record. Check on DOB BIS.
Evictions and housing court
0 executed evictions in the last 3 years (0 on record). 0 open HPD cases; 0 harassment findings.
Rent stabilization
6 of 6 units rent-stabilized as of 2024. Stabilized renewals: 0% for one year and 0% for two years under RGB Order #58 (Oct 1, 2026 to Sep 30, 2027).
Rent-stabilized units on city tax bills: 6 in 2024, 0 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: JOSEPH KOSTRZEWSKI REVOCABLE TRUST. Head officer: SYLVIA DRUZYNSKI. Managing agent: Sylvia Druzynski. See the full portfolio.
Last HPD registration Aug 21, 2024. HPD registration expired Sep 1, 2025 and had not been renewed as of Oct 3, 2026. Buildings with 3+ units must register with HPD every year.
Tax lot and city IDs
BBL 3026860058, HPD building ID 315080. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Nassau Av (G), 7 min walk
- Graham Av (L), 13 min walk
- Lorimer St (L), 14 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 2 open (1 class B, 1 class A) | −10 |
| 311 housing complaints (12 mo) | 1 | −8 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | 1 open DOB violation | −3 |
Sources: NYC HPD Housing Maintenance Code Violations, NYC 311 Service Requests, NYC HPD Bedbug Reporting, NYC Marshal Evictions (DOI), NYC HPD Housing Litigations, NYC DOB Violations, NYC DOF tax bills (via JustFix Who Owns What portfolio API, v2), NYC HPD Property Registration. Methodology. Report generated 2026-10-28.