21 East 21st 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 1878
Things to Know
Real considerations before you sign
- Top complaint type at this building3 noise complaints in past year
- Higher noise than typical for the neighborhood3 noise complaints in past year (vs 2 median)
About this building
A 6-story building located in Midtown South-Flatiron-Union Square, containing 26 residential units. Built in 1878.
The Building DNA
Building Services
Unit Perks
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
- Pests6
- Admin2
- Security1
Severity Key
- Class C: Immediately Hazardous (Major)
- Class B: Hazardous (Moderate)
- Class A: Non-Hazardous (Minor)
- Security
ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING 200 WATTS MINIMUM REQUIRED.
Nov 23, 1999Class B - Pests
A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Apr 29, 2026Class A - Pests
A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Jun 4, 2025Class A - Pests
A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Apr 1, 2024Class A - Pests
A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Mar 15, 2023Class 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
21 EAST 21ST ST., LLC
Cannot compute responsiveness yet. The building has 9 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 9 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 3 noise complaints with 311 in the past year, above 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.