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Building exterior 3 photos

One Union Square South

1 Union Square South, NY 100034.5 ★ (128 reviews)
Rental building
Website

Summary

One Union Square South is a full-service rental directly on Union Square, with a landscaped rooftop and select renovated apartments that add in-unit laundry, central air and upgraded finishes. Residents praise the staff, apartment sizes and unmatched convenience; elevator outages, drilling and street noise are the main drawbacks.

240 unitsOpened 1998Managed by Related Management

Reviews

The location and staff are the clearest reasons residents choose One Union Square South. Feedback is limited but consistent: residents value the convenience, larger layouts and attentive service, while elevator interruptions and the noise of a busy, actively renovated building are the recurring tradeoffs.

Google
4.5
128 reviews
Openigloo
4.5
1 review
ApartmentRatings
4.1
5 reviews

What residents praise

Staff make a busy building feel well run

Residents describe the front desk and other on-site teams as kind, helpful and attentive, including package delivery and everyday support.

Union Square convenience is exceptional

Subways, groceries, restaurants, the farmers market and daily services sit directly outside, making the building especially practical for car-free errands.

Apartments feel spacious and well maintained

Residents praise the apartment sizes, cleanliness and family-friendly atmosphere, with select renovated homes adding more modern finishes and in-unit laundry.

What residents complain about

Elevator outages can slow the trip home

Residents report that one elevator is sometimes out of service, leaving longer waits for the remaining cars.

Renovation and street noise are part of the setting

Drilling inside the building and emergency vehicles around Union Square can create noticeable noise, especially for residents sensitive to a busy central location.

Amenities

One Union Square South has central air and a 24-hour attended lobby, with in-unit laundry in renovated apartments and a shared laundry room. Residents have a fitness center, landscaped terrace with grills and garage in the building.

In the apartment
In-unit laundry
Some apartments
Central air
Dishwasher
In the building
24-hour doorman
Elevator
Fitness center*
Pool
Not available
Shared outdoor space
On-site parking*
Package service
Resident storage
Shared laundry

* Fees apply to marked amenities. See Costs in the Availability tab.

Also here: Valet dry cleaning · Media room · Party room · Business center · Dog daycare

Location

One Union Square South is located at 1 Union Square South, New York, NY 10003. One Union Square South is one minute from the 4, 5, 6, L, N, Q, R and W and two minutes from Whole Foods. Daily errands do not require a car, though the same central setting brings crowds, traffic and emergency-vehicle noise.

TransitSupermarketsParks
  • 1 min
    14 St-Union Sq456LNQRW
  • 6 min
    3 AvL
  • 7 min
    23 St-Baruch College6
  • 7 min
    8 St-NYURW
  • 7 min
    Astor Pl6
  • 8 min
    6 Av123FLM

Building records

The housing-complaint rate is below that of comparable buildings, with floors, paint or plaster, air quality and elevators prominent in the reports. Nearby demolition and a new-building project may bring disruption beyond the building itself.

Reported housing complaintsPast 3 years

Reported housing complaints
Housing-related reports submitted to NYC 311 by residents or the public. A report describes a reported issue, not a confirmed violation.

15 reports per 100 apartments, versus 28.7 for other comparable apartment buildings in New York.

CategoryReportsLatest
6
Feb 2026
6
Aug 2025
5
Dec 2025

HPD housing-code violationsPast 3 years

HPD housing-code violations
Housing-code violations issued by NYC’s Department of Housing Preservation and Development after an inspection. Routine administrative filings and notices are excluded.

No HPD violations recorded in this period.

Construction nearby

Construction nearby
Construction projects on or near this building with active work permits.
ProjectDistanceLatest permit
300 ftMay 2026
300 ftAug 2026

Rent history

Studios ask about 28% more than the Flatiron Nomad median. One-bedrooms ask about 22% more than the Flatiron Nomad median and are around 20% smaller.

Typical rents

Typical rents
Final asking rents from listings that ended in the past year, compared with the same apartment size across buildings in Flatiron Nomad.
Studio
$6,200median / mo
+28% vs area
$5,380–$6,650
1 bed
$8,010median / mo
+22% vs area
$7,400–$12,690573 sq ft · 20% smaller than area
2 beds
$13,400median / mo
$11,450–$15,450

Concessions

Historical concessions
Free-rent offers on listings that ended in the past year, including listings with no offer.

No free-rent offers appeared in the past year’s listings.

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