170 East 90th Street

170 East 90th Street in Carnegie Hill, Manhattan, has 7 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: C (68/100).

Co-op · Multi-family walk-up · 10 units · Built 1920

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, 68/100)

• 3 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 1 open violation is 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: High (7 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 (1 open DOB violation), 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)

7 open violations: 3 class C (immediately hazardous), 0 class B, 4 class A. 1 issued in the last 12 months. 14 on record. Oldest open violation issued 2019-07-18. Newest violation issued 2026-04-29.

0 closed in the last 90 days. Median 22 days from issue to close for the 1 violations closed in the last 12 months.

1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.

• Class C: No hot water, throughout the apartment, 3rd floor. PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 3A, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3A), issued 2023-07-03. HPD violation 16068336
• Class C: Self-closing door not working, 3rd floor. , 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE . IN THE ENTRANCE LOCATED AT APT 3A, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3A), issued 2023-06-30. HPD violation 16068337
• 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 AT OR NEAR MAILBOX AT PUBLIC HALL, 1st STORY, issued 2019-07-18. HPD violation 13174696
• Class A: Self-closing door not working (hallway). , 2007 ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING DOOR STOPPER AT BUILDING STREET ENTRANCE AND VESTIBULE DOORS AT PUBLIC HALL, 1st STORY, issued 2019-07-18. HPD violation 13174702
• Class A: Gas defect (hallway). HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES THAT SHOULD BE FOLLOWED WHEN A GAS LEAK IS SUSPECTED AT PUBLIC HALL, 1st STORY, issued 2019-07-18. HPD violation 13174698
• Class A: Damaged plaster or paint (hallway). POST SIGN ON WALL OF ENTRANCE STORY BEARING NAME, ADDRESS INCLUDING APARTMENT NUMBER IF ANY, AND TELEPHONE NUMBER OF SUPERINTENDENT, JANITOR OR HOUSEKEEPER. AT PUBLIC HALL, 1st STORY, issued 2019-07-18. HPD violation 13174697
• Class A: Damaged plaster or paint (hallway). ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCYS HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD. AT PUBLIC HALL, 1st STORY, issued 2019-07-18. HPD violation 13174699

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: No bedbug filing on record for this year
• 2023: Owner reported 0 infested units
• 2022: Owner reported 0 infested units
• 2021: Owner reported 0 infested units

Buildings department (DOB)

1 open DOB violation, a Local Law violation 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.

Owner and management

Owner: 16872 EAST 90 CORP. Head officer: DAVID MOSIER. Managing agent: SYNOPTIC MANAGEMENT CORP. This owner has 3 buildings on record, 0 graded D or F. See the full portfolio.

Last HPD registration Jul 28, 2026, valid through Sep 1, 2027.

Tax lot and city IDs

BBL 1015180042, HPD building ID 18099. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 86 St (4, 5, 6), 4 min walk
• 86 St (Q), 5 min walk
• 96 St (6), 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.