25 Prospect Avenue

25 Prospect Avenue in St. George, Staten Island, has 40 open HPD violations, 6 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: D (50/100).

One & two family · 2 units · Built 1910

StreetSpy grade: D (Poor, 50/100)

• 6 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 1 eviction carried out by marshals in the last 3 years.
• The head officer on this registration is named on 8 buildings' registrations; 1 graded D or F.
• No rent-stabilized units on the tax bill. Increases aren't capped by stabilization, though Good Cause Eviction may still limit them.

• Repairs: High (40 open, 6 class C), records as of Oct 26, 2026
• Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
• Pests: Clear (No bedbug filing, 3 yr), records as of Oct 28, 2026
• Safety: Clear (No open DOB violations), records as of Oct 26, 2026
• Registration: Through Sep 1, 2027, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

40 open violations: 6 class C (immediately hazardous), 29 class B, 5 class A. 0 issued in the last 12 months. 46 on record. Oldest open violation issued 2006-01-17. Newest violation issued 2015-10-15. No new HPD violation has been issued here since 2015. Most of the open count is older violations that were never closed.

HPD recorded no violation closed here in the last 12 months.

• Class C: Door, lock or intercom defect (entrance). ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOCK AT ENTRANCE DOOR TO BUILDING , 1st STORY, issued 2009-12-22. HPD violation 8199807
• Class C: Door, lock or intercom defect, 2nd floor. ADMIN. CODE: REMOVE THE ILLEGAL FASTENING DOUBLE CYLINDER LOCK IN THE ENTRANCE LOCATED AT APT 2ND, 2nd STORY (apt 2ND), issued 2008-01-29. HPD violation 7118816
• Class C: No hot water, throughout the apartment, 2nd floor. ADMIN. CODE: PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 2FL, 2nd STORY (apt 2FL), issued 2008-01-25. HPD violation 7115933
• Class C: Door, lock or intercom defect (hallway). ADMIN. CODE: REMOVE THE ILLEGAL FASTENING DOUBLE CYLINDER KEY OPERATED LOCK INSTALLED AT ENTRANCE DOOR TO BUILDING AT PUBLIC HALL, 1st STORY, issued 2008-01-25. HPD violation 7116072
• Class C: Gas defect, kitchen, 2nd floor. - PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES GAS- STOVE IN THE KITCHEN LOCATED AT APT 2, 2nd STORY (apt 2), issued 2007-07-16. HPD violation 6832261
• Class C: Electrical defect, throughout the apartment, 2nd floor. ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF NO ELECTRIC SERVICE PROVIDED IN THE ENTIRE APARTMENT LOCATED AT APT 2, 2nd STORY (apt 2), issued 2007-07-16. HPD violation 6832255
• Class B: Plumbing defect (basement). - DISCONTINUE USE OF ROOMS FOR LIVING, DISCONNECT PLUMBING FIXTURES WHERE ILLEGAL AND PROPERLY SEAL PIPE CONNECTIONS THE WASTER-CLOSET, WASHBASIN AND SHOWER-STALL AT BASEMENT, issued 2015-10-15. HPD violation 10945253
• Class B: Mold (basement). HMC:TRACE AND REPAIR THE SOURCE AND ABATE THE NUISANCE CONSISTING OF MOLD ... PRESENT AT LOWER WEST WALL ( APPROX- 5 SQ,FT ) AND LOWER SOUTH WALL ( APPROX- 5 SQ,FT ) AT BASEMENT, issued 2015-10-15. HPD violation 10945272

311 housing complaints

0 in the last 12 months, 0 in 5 years.

Bedbugs

No bedbug filing on record for the last 3 years. 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: No bedbug filing on record for this year
• 2023: No bedbug filing on record for this year
• 2022: Owner reported 0 infested units
• 2021: No bedbug filing on record for this year

Buildings department (DOB)

No open DOB violations. 0 DOB violations on record. Check on DOB BIS.

Evictions and housing court

1 executed evictions in the last 3 years (1 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

No rent-stabilized units on the tax bill.

Owner and management

Owner: PLATINUM DEVELOPMENT REALTY LLC. Head officer: JOHN MASSAMILLO. Managing agent: JOHN MASSAMILLO. This owner has 8 buildings on record, 1 graded D or F. See the full portfolio.

Last HPD registration Jul 14, 2026, valid through Sep 1, 2027.

Tax lot and city IDs

BBL 5000530081, HPD building ID 772078. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Tompkinsville (SIR), 16 min walk
• St George (SIR), 17 min walk
• Stapleton (SIR), 23 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.