51 East 78th Street

51 East 78th Street in Carnegie Hill, Manhattan, has 8 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: C (77/100).

Co-op · Multi-family elevator · 21 units · Built 1894

A cooperative: apartments are owned as shares, so a rental here is a sublet that usually needs board approval and may be limited to one or two years. Co-op units are not rent-stabilized.

StreetSpy grade: C (Fair, 77/100)

• 2 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.
• No housing complaints to 311 in the last 12 months.
• A co-op: renting here is a sublet, usually with board approval and a time limit; units are not rent-stabilized.

• Repairs: Medium (8 open, 2 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 (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)

8 open violations: 2 class C (immediately hazardous), 5 class B, 1 class A. 0 issued in the last 12 months. 33 on record. Oldest open violation issued 2022-03-02. Newest violation issued 2023-03-15. No new HPD violation has been issued here since 2023. Most of the open count is older violations that were never closed.

HPD recorded no violation closed here 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: 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 ON BOILER ROOM DOOR AND AT PUBLIC HALL, 1st STORY, issued 2022-03-02. HPD violation 5184363
• Class C: Fire escape defect. FIRE ESCAPE DEFECTIVE. PROPERLY SECURE LOOSE FRONT HORIZONTAL RAIL FORM 3RD BOTTOM UP, AT 2ND STORY BALCONY ,FRONT SOUTH AT FIRE ESCAPE, issued 2022-03-02. HPD violation 10480796
• Class B: Fire escape defect. D26-10.01, 10.05 ADM CODE FIRE EGRESS DEFECTIVE. REMOVE OBSTRUCTING BARS OR UNLAWFUL GATES FROM WINDOW TO FIRE ESCAPE OR PROVIDE APPROVED TYPE GATE 3 STY REAR APT 3C. , SECTION '' '' (apt 3C), issued 2022-03-02. HPD violation 2533221
• Class B: Leak or water damage, bathroom. D26-16.01 ADM CODE REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS BATHTUB 5TH STY FRONT WEST APT 5A BATHROOM. LOCATED AT APT 5A (apt 5A), issued 2022-03-02. HPD violation 2533231
• Class B: Required notice or sign missing. PROVIDE DWELLING WITH A JANITOR OR RESPONSIBLE PERSON OR JANITORIAL SERVICE., issued 2022-03-02. HPD violation 3596508
• Class B: Missing or broken smoke / CO detector, throughout the apartment, 4th 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 4A, 4th STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 4A), issued 2022-03-02. HPD violation 5184358
• Class B: Leak or water damage, kitchen. D26-16.01 ADM CODE REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS 1ST STY FRONT EAST APT 1D KITCHEN. , SECTION '' '' (apt 1D), issued 2022-03-02. HPD violation 2533225
• Class A: Floor or stair defect (basement). M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION OPENING CREATED FLOOR NORTH ROOM STAIRS LEADING TO CELLAR 1 STY REAR EAST APT 1C. , SECTION '' '' (apt 1C), issued 2022-03-02. HPD violation 2533223

311 housing complaints

0 in the last 12 months, 1 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: Owner reported 0 infested units
• 2022: No bedbug filing on record for this year
• 2021: Owner reported 0 infested units

Buildings department (DOB)

1 open DOB violation. 5 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: 51 EAST 78TH STREET OWNERS CORP. Head officer: MARK HOFFMAN. Managing agent: HOFFMAN MANAGEMENT. See the full portfolio.

Last HPD registration Jul 28, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 1013930027, HPD building ID 16629. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 77 St (6), 3 min walk
• 86 St (4, 5, 6), 9 min walk
• 72 St (Q), 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.