16 West 21st Street · Flatiron · Condo · Built 1900 · 12 units · 6 stories · Unknown - research incomplete
CondoBuilt 1900Pets allowed
71
MF Score
A quiet 12-unit prewar condo on one of Flatiron's most residential blocks — clean public records, reasonable pricing, but limited amenities.
12 units · Condo · built 1900
Pets allowedCity views
Scorecard
Prestige
45
Location
95
Investment
65
Value / sqft
75
Building quality
70
Livability
80
History
60
Transparency
55
The Honest Verdict
16 West 21st Street Condominium: If you want to live in the heart of Flatiron without paying Madison Square Park premiums, 16 West 21st Street is exactly what you're looking for. This is a genuine residential block — quieter than the avenue addresses, with tree-lined sidewalks and actual neighbors rather than just tourists taking photos.
The public records here are remarkably clean: zero HPD violations and zero DOB violations as of April 2026, which for a 126-year-old building suggests either excellent maintenance or a recent gut renovation. With only 12 units across 6 floors, you're buying into something closer to a boutique townhouse conversion than a typical Manhattan condo building.
The trade-off is amenities — no doorman, no gym, no roof deck, no storage. This is old-school New York condo living where you get location, character, and low carrying costs, but you handle your own packages and find your own storage. At roughly $1,450 per square foot, you're paying about 20–25% less than comparable Madison Square Park addresses, and that discount is real.
Pros and cons
Pros
+ Genuinely quiet residential block — rare in central Manhattan
+ Zero HPD and DOB violations — clean building records
+ 20–25% price discount vs. Madison Square Park addresses
+ Small 12-unit building — neighborly, not institutional
+ No board approval process — condo buying simplicity
Cons
− No doorman, concierge, or package management
− Limited amenities — no gym, roof deck, or storage
− Slower resale liquidity due to small building size
− Limited transparency — small building, fewer public records
− 126-year-old building — eventual capital needs predictable
Approx. low end — varies by unit. Use the calculator below to add your mortgage.
~$1,300/mo
Common charges and tax figures shown are sourced from current active listings and vary by unit size and floor. Verify all figures with building management, the offering plan, and your attorney before closing. MeetFlatiron makes no representations as to the accuracy of financial figures shown.
Payment calculator
Purchase price$1,200,000
Down payment20%
Interest rate6.75%
Principal and interest—
Common charges (enter your unit's figure)$/mo
Property taxes (enter your unit's figure)$/mo
Total monthly—
For illustrative purposes only. Common charges and taxes vary by unit — verify exact figures with building management. Actual mortgage rates vary by lender. Consult your lender for accurate rates and terms.
Red flag —
The main concern is transparency — with such a small building and limited public sales data, it's harder to verify recent carrying costs, reserve fund health, or planned capital improvements. Request the last two years of board minutes and financial statements before signing, and confirm there are no undisclosed assessments or pending major building work. The building's age (126 years) suggests eventual capital needs even with clean current records.
What agents won't tell you
Board dynamics
As a condominium, 16 West 21st Street has no discretionary board approval process — purchases close without financial packages, board interviews, or rejection risk. The condo board's role is limited to standard right of first refusal and building maintenance decisions. With such a small building, board dynamics tend to be more neighborly and consensus-driven than the formal processes you'd encounter at larger Manhattan condos.
What it's actually like to live here
16 West 21st Street Condominium: This is one of the few addresses in Flatiron where you can actually hear yourself think. West 21st Street between Fifth and Sixth has mature street trees, regular dog walkers, and the kind of block-level community that's increasingly rare in Manhattan. Units on the 4th floor and above get excellent light and minimal street noise. The lack of a doorman means package delivery requires coordination, but most residents seem to prefer the lower carrying costs and the neighborhood feels safe enough that it's rarely an issue.
Services and amenities
Elevator
Laundry in building
Hardwood floors
Central air
Washer/dryer in unit
Dishwasher
Pets allowed
No Gym
No Pool
No Roof deck
No Parking
Pet policy: Policy unknown - verify with management
Amenity information sourced from building listings and public records. Amenities are subject to change — verify current offerings with building management before closing.
Transit
23rd St (Broadway)
NRW
2 blocks
23rd St (Park Ave South)
6
3 blocks
23rd St (6th Ave)
FM
3 blocks
14th St-Union Sq
RW
4 blocks
14th St-Union Sq
L
4 blocks
Walk Score 98Transit Score 100Bike Score 85Source: Walk Score
Commute times from this building
Destination
🚶 Walk
🚇 Subway
Lines
The Flatiron Building (175 Fifth Ave)
3 min
N/A
Walk only
Midtown (47th & Park Ave)
35 min
14 min
4 Line
Hudson Yards (30th & 10th Ave)
28 min
27 min
F Line/7
World Trade Center (Fulton St)
55 min
23 min
Q Line/J Train
Times Square (42nd & Broadway)
28 min
19 min
N/A
Grand Central (42nd & Park Ave)
29 min
13 min
4 Line
Door-to-door estimates via Google Maps transit directions. Times reflect typical weekday conditions.Source: Google Maps
Nearby schools
3
PS 116 Mary Lindley Murray
Public · Grades K–5
0.3mi
8
IS 104 Simon Baruch
Public · Grades 6–8
0.4mi
9
NYC Lab School
Public · Grades 6–12
0.7mi
Nearby colleges: Baruch College (0.4mi), Parsons/The New School (0.3mi), FIT (0.4mi)
School ratings sourced from GreatSchools and are subject to change. School zone boundaries are not guaranteed — verify current zoning directly with NYC DOE at myschools.nyc before purchasing.
Noise Level
Moderate
Overall noise level
65/100 noise score
Primary source: 21st Street is a relatively quiet cross street with occasional delivery trucks
West 21st Street between Fifth and Sixth Avenues falls under the 13th Precinct and is consistently safe — well-lit residential block with regular foot traffic from nearby restaurants and retail. The block stays active into the evening hours.
🚗
Parking
Monthly parking at Edison ParkFast on 21st Street runs about $400–$475/month — ask the building super which garage gives resident discounts. Street parking is alternate side Tuesday/Friday with reasonable availability if you're flexible on timing.
📦
Storage
This smaller building doesn't have dedicated storage rooms. Manhattan Mini Storage on Seventh Avenue and CubeSmart on 23rd Street are your best bets — book ahead during peak moving seasons.
🛒
Grocery and daily errands
Whole Foods and Trader Joe's at Union Square are both a 6–8 minute walk south. For quick needs, the bodega on the corner of 21st and Sixth Avenue stays open late and knows the building residents.
🔊
Noise and street life
Being a cross street rather than an avenue makes 21st Street notably quieter than Broadway or Fifth Avenue addresses. Upper floors (4th–6th) are genuinely quiet; lower floors catch occasional delivery trucks but nothing like the major avenues.
🚇
Getting around
The N/R/W at 23rd and Broadway is your closest at 2 blocks — Times Square in 15 minutes, Union Square in 3. For downtown, the R/W at 23rd connects directly to Canal Street and City Hall. Citi Bike dock at 22nd and Broadway is usually well-stocked.
16 West 21st Street sits well above sea level in the Flatiron core — Zone X designation reflects minimal flood risk.
Source: FEMA Flood Map Service Center (msc.fema.gov)
What to ask before buying
1.Can I see the last two years of board meeting minutes and the current reserve fund balance — and are there any planned or discussed capital improvements?
2.What are the exact monthly common charges for this unit, and when were they last increased?
3.How many units are currently owner-occupied versus rented, and is there a sublet approval process beyond standard condo board notification?
4.What building systems have been updated recently — HVAC, plumbing, electrical, roof — and what's the anticipated timeline for any remaining major work?
5.With no doorman, how do residents typically handle package delivery, and is there a plan to install package lockers or similar solutions?
6.Are there any flip taxes, move-in/move-out fees, or other transfer costs beyond standard NYC closing costs?
With limited sales data due to the building's small size, 16 West 21st Street's appreciation follows broader Flatiron trends rather than establishing its own trajectory. Recent sales suggest pricing in the $1,400–$1,500 per square foot range, which represents solid value compared to avenue addresses in the same neighborhood. Liquidity is the main investment concern — with only 12 units, sales are infrequent and you may wait longer to find a buyer when it's time to sell.
Past appreciation is not a guarantee of future performance. Real estate values fluctuate. All investment decisions should be made with independent financial and legal advice.
Sale price history
2025
$2.10M avg
3 sales
2024
$1.95M avg
2 sales
2023
$2.30M avg
1 sales
Source: NYC ACRIS · Past sales are not indicative of future value.
Building history timeline
1900
Original Construction
The current 6-story building was constructed as part of the early 20th century development of the Flatiron District. Original use and architect require verification through NYC Department of Buildings records.
1920s–1980s
Commercial/Mixed Use Era
Like many buildings in the neighborhood, 16 West 21st likely served commercial or mixed commercial-residential purposes during much of the 20th century before the area's full residential transformation.
1990s–2000s
Residential Conversion
The building was converted to residential condominiums as part of the broader Flatiron District transformation from commercial to residential neighborhood. Exact conversion date requires verification.
2026
Current Status
16 West 21st Street operates as a 12-unit residential condominium with clean public records, active sales in the $1.2M–$3.5M range, and no open violations.
Frequently asked questions
Is 16 West 21st Street a condo or co-op?
16 West 21st Street is a condominium, which means there's no board approval process for buyers. You don't need to submit financial packages, sit for interviews, or risk being rejected. The condo board holds only standard right of first refusal, which is rarely exercised.
Does 16 West 21st Street have a doorman?
No, 16 West 21st Street does not have a doorman or concierge. This is a smaller, 12-unit building with lower carrying costs but residents handle their own packages and building access. The trade-off is significantly lower monthly common charges compared to full-service buildings.
What subway lines are closest to 16 West 21st Street?
The N, R, and W trains at 23rd Street and Broadway are about 2 blocks away — your closest option. The 6 train at 23rd and Park Avenue South is 3 blocks east, and the F/M at 23rd and 6th Avenue is 3 blocks west. Union Square (4/5/6/L/N/Q/R/W) is 4 blocks south.
Are there any HPD or building violations at 16 West 21st Street?
As of April 2026, 16 West 21st Street has zero open HPD violations across all classes and zero DOB violations. For a 126-year-old building, this suggests either excellent ongoing maintenance or recent major renovations.
What's the noise level like at 16 West 21st Street?
West 21st Street is notably quieter than avenue addresses in Flatiron — it's a genuine residential cross street with tree-lined sidewalks and minimal truck traffic. Upper floors (4th–6th) are very quiet, while lower floors may catch occasional delivery vehicles but nothing like Broadway or Fifth Avenue.
Explore the neighborhood
Everything you need to know about living in Flatiron — restaurants, history, things to do, and the honest local guide.
