40 East 89th Street, 09d, New York
Also known as 1227 Madison Avenue
Building overview
Data as of Jul 1, 2026
Based on open violations, 311 complaint patterns, and amenities.
Compared to typical rent for this neighborhood and bedroom count.
Highlights
What's great about this place
Limited highlights data — verify with a tour.
Things to Know
Real considerations before you sign
- Open critical violations1 Class C (immediately hazardous)
- Significant issues across building dataSee violation history below for details
About this building
A 17-story building located in Upper East Side-Carnegie Hill, containing 94 residential units. Built in 1958.
The neighborhood: Carnegie Hill
Manhattan · 276 buildings tracked
Median asking rent: $5,500 1BR · $7,800 2BR
Available Units
1 active · 1 past listing
Safety & Violations
Safety Record
Active Violations
Open HPD violations on record for this building.
Top issues
- Safety4
- Lead Paint3
- Water/Plumbing2
Severity Key
- Class C: Immediately Hazardous (Major)
- Class B: Hazardous (Moderate)
- Class A: Non-Hazardous (Minor)
- Heat/Hot Water
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 SIGN MISSING AT PUBLIC HALL
Mar 8, 2018Class C - Water/Plumbing
HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK ON THE CEILING IN THE 2nd ROOM FROM EAST LOCATED AT APT 15C, 15th STORY, 1st APARTMENT FROM WEST AT NORTH
Jul 10, 2023Class B - Structural
THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE 2nd ROOM FROM EAST LOCATED AT APT 15C, 15th STORY, 1st APARTMENT FROM WEST AT NORTH
Jul 10, 2023Class B - Safety
OR REPLACE THE SMOKE DETECTOR ONE MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3G, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH
Sep 18, 2006Class B - Window/Door
THE BROKEN OR DEFECTIVE DOOR LEADING TO TERRACE LOCATED AT APT 3G, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH
Sep 18, 2006Class B
Market Value Estimate
Statistical estimate based on publicly available listing data. Not an appraisal. See disclaimer.Market data as of Jul 1, 2026.
Comp Matrix
| Unit Type | This Bldg | Area Avg | Diff. |
|---|---|---|---|
| 1 Bed | — | $5,500 | — |
| 2 Bed | — | $7,800 | — |
| 3+ Bed | $12,500 | $15,600 | -20% |
Value Verdict
Above Market
Rents are 127% higher than the neighbourhood average.
Rent vs. Buy Analysis
Rent
$12,500
Building Avg
Buy
$17,125
Est. Monthly Carry
Renting Saves ~$55,500/yr
Compared to buying a similar unit in this neighbourhood.
How is this calculated?+
Estimated monthly carry is the building's average rent multiplied by 1.37x — a rough heuristic for what an equivalent purchase would cost per month. The 1.37 figure approximates principal + interest on a 20% down loan at 6-7% mortgage rates, plus typical NYC property taxes, homeowner insurance, and maintenance reserves.
Annual savings is the difference between this estimated monthly carry and the building's average rent, multiplied by 12.
This is an approximation, not a per-building mortgage calculation. A full rent-vs-buy calculator with explicit inputs (down payment, rate, taxes, appreciation) is on the roadmap. See accuracy disclaimer.
Management & Operations
Management & Performance
Owner/Operator
KERN 90, LLC
Responsiveness Score
Average time to resolve violations
Similar to NYC average (45 days)
We haven't verified this building's policies yet. Pet, utility, and leasing details appear here once we've reviewed the management company's official site — we only show policies we can source, never assumptions.
Living here — quick answers
Every answer comes from public records for this specific building — we skip questions we can't answer with data.
- How well maintained is this building?
- There are 14 open HPD violations on record, including 1 Class C (the city's most serious category).
- Is this building rent-stabilized?
- Yes — this building appears on the DHCR rent-stabilized building list. Ask the landlord to confirm whether a specific apartment is stabilized.
- How noisy is this building?
- Neighbors filed 1 noise complaint with 311 in the past year, about the neighborhood median of 1.
- How responsive is management to problems?
- Resolved violations at this building closed in about 46 days on average (NYC average is roughly 45 days). Open items are listed in the Safety & Violations section above.
- What does it cost to live here?
- We don't have current listings for this building. Typical asking rent in Carnegie Hill is about $5,500/month for a one-bedroom.