18 East 23rd Street
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
- Pre-war characterBuilt in 1900
- Quieter than average for the neighborhood1 noise complaints in past year (vs 2 median)
Things to Know
Real considerations before you sign
- Significant issues across building dataSee violation history below for details
About this building
A 5-story building located in Midtown South-Flatiron-Union Square, containing 16 residential units. Built in 1900.
The neighborhood: Flatiron District
Manhattan · 274 buildings tracked
Median asking rent: $4,915 1BR · $9,000 2BR
2 subway stations nearby
1 park · 0.3 acres · incl. Worth Square
Available Units
0 active
No past listings.
Past and off-market units will appear here when data is available.
Safety & Violations
Safety Record
Active Violations
Open HPD violations on record for this building.
Top issues
- Structural2
Severity Key
- Class C: Immediately Hazardous (Major)
- Class B: Hazardous (Moderate)
- Class A: Non-Hazardous (Minor)
- Structural
THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING, SOUTH AND EAST WALL IN THE 2nd ROOM FROM NORTH LOCATED AT APT 3C, 4th STORY, 2nd APARTMENT FROM NORTH AT EAST
Apr 22, 2019Class B - Structural
M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME AT OR NEAR MAILBOXES, BOTTOM EDGE OF FRAME BETWEEN 48-62 INCHES ABOVE FLOOR MISSING FRAME AT PUBLIC HALL, 1st STORY
Apr 12, 2019Class A
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. |
|---|---|---|---|
| Studio | — | $3,915.75 | — |
| 1 Bed | — | $4,915 | — |
| 2 Bed | — | $9,000 | — |
Value Verdict
Insufficient listing or market data to compute a verdict for this building.
Rent vs. Buy Analysis
No listing data available to estimate rent vs. buy.
Management & Operations
Management & Performance
Owner/Operator
SUNNY K REALTY LTD.
Cannot compute responsiveness yet. The building has 2 open violations but none have been resolved in our visibility window, so days-to-close has no data to average.
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 2 open HPD violations on record, none in the city's most serious category (Class C).
- 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, below the neighborhood median of 2 among buildings with any noise complaints.
- What does it cost to live here?
- We don't have current listings for this building. Typical asking rent in Flatiron District is about $4,915/month for a one-bedroom.