150 North 9th Street

150 North 9th Street in Williamsburg, Brooklyn, has 3 open HPD violations, 2 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: D (62/100).

Multi-family walk-up · 7 units · Built 1910

StreetSpy grade: D (Poor, 62/100)

• 2 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• The owner has 2 buildings on record; 1 graded D or F.
• Had 4 rent-stabilized units on the 2007 tax bill and none on the latest one; ask how the apartment left stabilization.

More open violations per unit than 5 in 10 Brooklyn buildings this size.

• Repairs: Medium (3 open, 2 class C), 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: Renewal not yet in city data, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

3 open violations: 2 class C (immediately hazardous), 1 class B, 0 class A. 1 issued in the last 12 months. 13 on record. Oldest open violation issued 1996-11-12. Newest violation issued 2026-05-05.

0 closed in the last 90 days. Median 3 days from issue to close for the 1 violations closed in the last 12 months.

• Class C: No heat / heating defect (hallway). POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM MISSING AT WALL AND BOILER ROOM DOOR TO BASEMENT AT PUBLIC HALL, 1st STORY, issued 2016-02-04. HPD violation 11101635
• Class C: Lead paint hazard, bathroom. REMOVE OR COVER IN A MANNER APPROVED BY THE DEPARTMENT THE PEELING LEAD PAINT LOOSE AND UNKEY PLASTER WALLS AND CEILING BATHROOM 3 STY SOUTH APT 3L BAEZ 387 2080 ER1 96031743 , SECTION '' '' (apt 3L), issued 1996-11-12. HPD violation 1795058
• Class B: Door, lock or intercom defect, 3rd room from the east, 1st floor. HMC: REFIT DOOR IN THE 3rd ROOM FROM EAST LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM WEST AT NORTH (apt 1R), issued 2023-07-21. HPD violation 16108167

311 housing complaints

2 in the last 12 months, 10 in 5 years. Most common: Heat/Hot Water (1), Unsanitary Condition (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: Owner reported 0 infested units
• 2021: No bedbug filing on record for this year

Buildings department (DOB)

1 open DOB violation, a Local Law violation issued before 2000. 3 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: Mantomi Co. Ltd. Head officer: Atsushi Koyama. Managing agent: LIVINGSTON MANAGEMENT SERVICES, LLC. This owner has 2 buildings on record, 1 graded D or F. See the full portfolio.

Last HPD registration Sep 24, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3023110017, HPD building ID 345640. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Bedford Av (L), 3 min walk
• Nassau Av (G), 10 min walk
• Lorimer St (L), 10 min walk

How the grade is calculated

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.