644 Hawthorne Street
644 Hawthorne Street in Prospect Lefferts Gardens, Brooklyn, has 39 open HPD violations, 3 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: F (49/100).
Multi-family walk-up · 3 units · Built 1931
StreetSpy grade: F (Severe, 49/100)
- 130 open HPD violations per 10 units, about 13 per apartment. The grade is F for that alone.
- 3 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- 4 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
- No rent-stabilized units on the tax bill. Increases aren't capped by stabilization, though Good Cause Eviction may still limit them.
More open violations per unit than 9 in 10 Brooklyn buildings this size.
- Repairs: Grade capped at F (39 open, 3 class C), records as of Oct 26, 2026
- Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
- Pests: Clear (Owner reported none, 3 yr), records as of Oct 28, 2026
- Safety: Clear (No open DOB violations), records as of Oct 26, 2026
- Registration: Renewal not yet in city data, records as of Oct 3, 2026
Housing code violations (HPD)
39 open violations: 3 class C (immediately hazardous), 30 class B, 6 class A. 1 issued in the last 12 months. 51 on record. Oldest open violation issued 2008-06-11. Newest violation issued 2026-05-04.
0 closed in the last 90 days. Median 17 days from issue to close for the 1 violations closed in the last 12 months.
4 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.
- Class C: Broken window or sash, 1st room from the north, 2nd floor. REPLACE WITH NEW THE BROKEN OR DEFECTIVE GLASS LITE ( TOTAL 1 ) ON DOOR , IN THE 1st ROOM FROM NORTH AT EAST LOCATED AT APT 2, 2nd STORY, APARTMENT AT NORTH (apt 2), issued 2011-02-22. HPD violation 8818307
- Class C: Door, lock or intercom defect (entrance). , 2007 ADM CODE REMOVE THE ILLEGAL FASTENING CONSISTING OF DOUBLE CYLINDER KEY OPERATED LOCK ON METAL GATE AT BUILDING ENTRANCE., issued 2011-02-22. HPD violation 8818315
- Class C: Leak or water damage, 1st room from the north, 2nd floor. REPAIR THE ROOF SO THAT IT WILL NOT LEAK OVER CEILING, IN THE 1st ROOM FROM NORTH AT EAST LOCATED AT APT 2, 2nd STORY, APARTMENT AT NORTH (apt 2), issued 2011-02-22. HPD violation 8818309
- Class B: Damaged plaster or paint, throughout the apartment, 2nd floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILINGS AND ALL WALLS IN THE ENTIRE APARTMENT LOCATED AT APT 2RR, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 2RR), issued 2014-07-01. HPD violation 10292196
- Class B: Missing or broken smoke / CO detector, throughout the apartment, 2nd floor. , 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. IN THE ENTIRE APARTMENT LOCATED AT APT 2RR, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 2RR), issued 2014-07-01. HPD violation 10292194
- Class B: Plumbing defect, kitchen, 2nd floor. REPAIR THE BROKEN OR DEFECTIVE CONNECTION LOCKNUT AT WASTELINE OF SINK IN THE KITCHEN LOCATED AT APT 2RR, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 2RR), issued 2014-06-30. HPD violation 10292218
- Class B: Damaged plaster or paint, west wall, bathroom, 2nd floor. PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC TILES AT WEST WALL IN THE BATHROOM LOCATED AT APT 2RR, 2nd STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 2RR), issued 2014-06-30. HPD violation 10292215
- Class B: Leak or water damage, kitchen, 2nd floor. REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS AT SINK IN THE KITCHEN LOCATED AT APT 2RR, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 2RR), issued 2014-06-30. HPD violation 10292220
311 housing complaints
0 in the last 12 months, 0 in 5 years.
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: Owner reported 0 infested units
- 2024: Owner reported 0 infested units
- 2023: No bedbug filing on record for this year
- 2022: Owner reported 0 infested units
- 2021: Owner reported 0 infested units
Buildings department (DOB)
No open DOB violations. 0 DOB violations 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
No rent-stabilized units on the tax bill.
Owner and management
Owner: SHLOMAH M BLASENSTEIN. Managing agent: SHLOMAH M BLASENSTEIN. See the full portfolio.
Last HPD registration Aug 4, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 3048230014, HPD building ID 309367. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Winthrop St (2, 5), 12 min walk
- Sterling St (2, 5), 14 min walk
- Church Av (2, 5), 15 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 39 open (3 class C, 30 class B, 6 class A). 4 rent-impairing | −45 |
| 311 housing complaints (12 mo) | None | 0 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | None | 0 |
| Density cap | 130 per 10 units (about 13 per apartment). Grade capped at F: 100 or more open HPD violations per 10 units. | −6 |
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.