Studio, 1 ba
$2,927-3,027
450 sqft
1 unit avail. Oct 18 | 1 unit avail. Oct 21
Price: $2,927Available: Available Oct 18 2025Unit: Unit 812
Price: $3,027Available: Available Oct 21 2025Unit: Unit 312
Prospect Union Square
50 Prospect St, Somerville, MA 02143
Apartment building
Studio-2 beds
Pet-friendly
Covered parking
Shared laundry
What’s available
Price may not include required fees and charges.
Studio, 1 ba
$2,972
416 sqft
1 unit available Sep 22
Studio, 1 ba
$3,098-3,370
491 sqft
1 unit avail. now | 1 avail. Oct 23
Price: $3,098Available: Available Oct 23 2025Unit: Unit 605
Price: $3,370Available: Available NowUnit: Unit 2405
Studio, 1 ba
$3,222
460 sqft
1 unit available Oct 14
1 bd, 1 ba
$3,195-3,610
544 sqft
2 units available now
Price: $3,195Available: Available NowUnit: Unit 1214
Price: $3,610Available: Available NowUnit: Unit 2214
1 bd, 1 ba
$3,321
569 sqft
1 unit available now
1 bd, 1 ba
$3,376
530 sqft
1 unit available Sep 13
1 bd, 1 ba
$3,420-3,710
534 sqft
1 unit avail. Sep 4 | 1 unit avail. Sep 18
Price: $3,420Available: Available Sep 18 2025Unit: Unit 424
Price: $3,710Available: Available Sep 4 2025Unit: Unit 324
1 bd, 1 ba
$3,462-3,602
576 sqft
1 unit avail. Sep 11 | 1 unit avail. Oct 7
Price: $3,462Available: Available Sep 11 2025Unit: Unit 447
Price: $3,602Available: Available Oct 7 2025Unit: Unit 341
1 bd, 1 ba
$4,097-4,117
751 sqft
1 unit avail. Sep 21 | 1 unit avail. Oct 26
Price: $4,097Available: Available Oct 26 2025Unit: Unit 1513
Price: $4,117Available: Available Sep 21 2025Unit: Unit 1713
1 bd, 1 ba
$4,445
749 sqft
1 unit available Sep 5
2 bd, 2 ba
$5,047
913 sqft
1 unit available Sep 21
2 bd, 2 ba
$5,271
867 sqft
1 unit available Sep 25
2 bd, 2 ba
$5,311-5,351
847 sqft
1 unit avail. Sep 17 | 1 unit avail. Oct 10
Price: $5,311Available: Available Oct 10 2025Unit: Unit 1906
Price: $5,351Available: Available Sep 17 2025Unit: Unit 2306
What's special
Clubhouse
Get the party started
This building features a clubhouse. Only 3% of buildings in Somerville have this amenity.
The more you look, the more you will find. Discover Prospect Union Square - a brand new apartment living community arriving right on the Green line. Featuring incredible views, lush amenities, and cozy community spaces, Prospect offers innovative apartment homes settled within a colorful neighborhood that's ready to be explored.
The price shown reflects Base Rent only. Residents are responsible for additional required fees, including but not limited to an application fee, security deposit, community amenity fee, and utility charges. These fees are assessed per applicant or per unit as applicable and may vary based on usage or lease terms. Please consult a leasing agent for a comprehensive list of all required, optional, and situational fees.
Office hours
| Day | Open hours |
|---|---|
| Mon: | 9 am - 6 pm |
| Tue: | 9 am - 6 pm |
| Wed: | 9 am - 6 pm |
| Thu: | 9 am - 6 pm |
| Fri: | 9 am - 5 pm |
| Sat: | 10 am - 5 pm |
| Sun: | 12 pm - 5 pm |
Property map
Tap on any highlighted unit to view details on availability and pricing
Use ctrl + scroll to zoom the map
Facts, features & policies
Building Amenities
Accessibility
- Disabled Access: WheelChair
Community Rooms
- Business Center
- Club House
- Conference Room
- Fitness Center
Other
- Shared: Laundry
- Swimming Pool: Pool
Outdoor common areas
- Deck: Amenity Deck Access
Security
- Controlled Access
Services & facilities
- Elevator
- On-Site Maintenance: OnSiteMaintenance
- On-Site Management: OnSiteManagement
- Package Service: PackageReceiving
- Spanish Speaking Staff
- Storage Space
Unit Features
Appliances
- Garbage Disposal: Disposal
- Microwave Oven: Microwave
- Range
- Refrigerator
Cooling
- Air Conditioning: AirConditioner
Flooring
- Tile: TileFlooring
- Vinyl: VinylFlooring
Internet/Satellite
- Cable TV Ready: Cable
- High-speed Internet Ready: HighSpeed
Other
- Bar Building
- Courtyard View
- High Ceilings
- Large Closets
- Pantry
- Tower Building
Policies
Pets
Dogs
- Allowed
- 2 pet max
- $75 monthly pet fee
- Breed Restrictions Apply
Cats
- Allowed
- 2 pet max
- $50 monthly pet fee
Parking
- covered: CoverPark
- Garage
- None
Smoking
- This is a smoke free building
Special Features
- Availability 24 Hours
- Concierge
- Dog Run And Pet Spa
- Recycling
- Wireless Internet
Neighborhood: Union Square
Areas of interest
Use our interactive map to explore the neighborhood and see how it matches your interests.
Travel times
Nearby schools in Somerville
GreatSchools rating
- NACapuano Early Childhood CenterGrades: PK-1Distance: 0.6 mi
- 5/10Albert F. Argenziano School At Lincoln ParkGrades: PK-8Distance: 0.3 mi
- 6/10Somerville High SchoolGrades: 9-12Distance: 0.7 mi
Frequently asked questions
What is the walk score of Prospect Union Square?
Prospect Union Square has a walk score of 98, it's a walker's paradise.
What is the transit score of Prospect Union Square?
Prospect Union Square has a transit score of 82, it has excellent transit.
What schools are assigned to Prospect Union Square?
The schools assigned to Prospect Union Square include Capuano Early Childhood Center, Albert F. Argenziano School At Lincoln Park, and Somerville High School.
Does Prospect Union Square have in-unit laundry?
No, but Prospect Union Square has shared building laundry.
What neighborhood is Prospect Union Square in?
Prospect Union Square is in the Union Square neighborhood in Somerville, MA.
What are Prospect Union Square's policies on pets?
A maximum of 2 dogs are allowed per unit. This building has monthly fee of $75 for dogs. A maximum of 2 cats are allowed per unit. This building has monthly fee of $50 for cats.
