Prospect Union Square - Magellan Development Group

50 Prospect Street , Somerville


Prospect Union Square

Prospect Union Square is Somerville’s newest 450-unit apartment community. Located at 50 Prospect Street within the USQ development, Prospect Union Square will be surrounded by 2.4 million square feet of new lab/office space; 4.7 acres of parks and open space; 12 new, multi-purpose civic open spaces, including three neighborhood parks; 150,000 square feet of retail; 160,000 square feet of arts and creative space; and 175 hotel rooms.

Prospect Union Square modern rental apartments range from studios to two-bedrooms, spreading across its six-story mid-rise connected to a twenty-five story tower.


Key Stats

  • Site Size: 130,658 sf
  • Number of Stories: 25 stories in Tower and 6 Stories in Midrise
  • Building Size: 509,189 sf
  • Residential Rental Units: 450
  • Parking Spaces: 271
  • Retail Space: 18,069 sf
  • Development Team: Magellan Development, RAS Development LLC, Cypress Equity Investments, and Affinius Capital
  • Architecture: bKL Architecture
  • Total Development Costs: $227,779,833
  • Construction Start: 2021
  • Initial Occupancy: 2023 Q3