1721 Cornelia Street

1721 Cornelia Street in Ridgewood, Queens, has 23 open HPD violations, 3 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 25, 2026. StreetSpy grade: D (50/100).

Multi-family walk-up · 6 units · Built 1930

StreetSpy grade: D (Poor, 50/100)

• 3 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 2 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• Had 6 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 8 in 10 Queens buildings this size.

• Repairs: High (23 open, 3 class C), records as of Oct 25, 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 27, 2026
• Safety: High (4 open DOB violations), records as of Oct 23, 2026
• Registration: Renewal not yet in city data, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

23 open violations: 3 class C (immediately hazardous), 12 class B, 8 class A. 1 issued in the last 12 months. 68 on record. Oldest open violation issued 2007-08-21. Newest violation issued 2026-05-07.

0 closed in the last 90 days. Median 951 days from issue to close for the 6 violations closed in the last 12 months.

2 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: Mice, 2nd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE LOCATED AT APT 2RIGHT, 2nd STORY, APARTMENT AT NORTH (apt 2RIGHT), issued 2020-03-02. HPD violation 13624159
• Class C: Missing window guards, throughout the apartment, 2nd floor. HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. MISSING WG TO INSTALL = 3; WG TO REPLACE = 0; WG TO REPAIR = 0; IN THE ENTIRE APARTMENT LOCATED AT APT 2RIGHT, 2nd STORY, APARTMENT AT NORTH (apt 2RIGHT), issued 2020-03-02. HPD violation 13624167
• Class C: Self-closing door not working, 2nd floor. , 2007 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS .. IN THE ENTRANCE LOCATED AT APT 2RIGHT, 2nd STORY, APARTMENT AT NORTH (apt 2RIGHT), issued 2020-03-02. HPD violation 13624175
• Class B: Damaged plaster or paint, ceiling, 2nd room from the east, 1st floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 2nd ROOM FROM EAST LOCATED AT APT 1L, 1st STORY (apt 1L), issued 2021-03-09. HPD violation 14061690
• Class B: Door, lock or intercom defect (hallway). , 2007 ADM CODE REMOVE THE ILLEGAL FASTENING LOCKABLE LATCH AT PUBLIC HALL ROOF BULKHEAD DOOR, issued 2021-01-06. HPD violation 13969443
• Class B: Damaged plaster or paint, bathroom, 1st floor. & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF EVIDENCE OF WATER STAIN CEILING IN THE BATHROOM LOCATED AT APT 1L, 1st STORY, APARTMENT AT WEST (apt 1L), issued 2011-04-12. HPD violation 8896966
• Class B: Missing or broken smoke / CO detector, throughout the apartment, 1st floor. SECTION 27-2046.1, 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 1L, 1st STORY, APARTMENT AT WEST (apt 1L), issued 2011-04-12. HPD violation 8896967
• Class B: Damaged plaster or paint, ceiling, 4th room from the north, 1st floor. REPLACE WITH NEW THE BROKEN OR DEFECTIVE ACOUSTIC TILES AT CEILING IN THE 4th ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, APARTMENT AT WEST (apt 1L), issued 2011-04-12. HPD violation 8896965

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: No bedbug filing on record for this year
• 2021: No bedbug filing on record for this year

Buildings department (DOB)

4 open DOB violations, all 4 Local Law violations issued before 2000. 4 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.

Rent-stabilized units on city tax bills: 0 in 2024, 6 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: TON NGUYEN. Head officer: TON NGUYEN. Managing agent: 1721 PROPERTY LLC. See the full portfolio.

Last HPD registration Sep 30, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 4034610048, HPD building ID 646382. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Seneca Av (M), 4 min walk
• Forest Av (M), 6 min walk
• Myrtle-Wyckoff Avs (L), 6 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.