Observer
Somerville · neighborhood report

Union Square

20 condos sold here in the past 12 months for a typical $770,000, or $808 a square foot.

By the Observer Neighborhoods Desk · Verified market data, updated November 10, 2026

$770K
typical condo sale price, past 12 months
$808
per square foot
18 days
typical time to an accepted offer

Key factsAs of November 10, 2026

  • As of November 10, 2026, 20 condos sold in Union Square, Somerville in the past 12 months, for a typical $770,000 ($808 per square foot).
  • That is 9% more per square foot than condos across Somerville ($744).
  • Condos in Union Square took a typical 18 days to get an accepted offer (Somerville overall: 13), and 45% sold at or above the first asking price.
  • 63% of the 8 homes for sale in Union Square have cut their asking price.
  • Typical rent in Union Square, Somerville (leases in the past 12 months): 1 bedroom $2,600, 2 bedrooms $3,400, 3+ bedrooms $4,100 a month.

Cite as: “Union Square, Somerville neighborhood report,” Boston Real Estate Observer, https://bostonrealestateobserver.com/towns/somerville/union-square/ (verified market data as of November 10, 2026).

Observer Condo Index, October 2026: 101.5. Greater Boston condos sold for a typical $601 a square foot over the last three months. Union Square condos: $808 a square foot over the past 12 months, 34% more.

By type of homePast 12 months

TypeSalesTypical pricePer sq ftMiddle half, per sq ftDays to offerAt or above asking
Condos20$770K$808$701–$8661845%
Multi-family8$1.61M$417$377–$5231250%
Single-family5$1.3M$829$585–$874580%

What condos in Union Square sell for, per square foot

Typical sale price per square foot, condos, by quarter (quarters with 8 or more sales).

$1,000$500
$819
2025 Q42026 Q2
Source: Verified market data; analysis by the Observer Markets Desk.
Show the numbers
QuarterPer sq ftSales
2025 Q4$7518
2026 Q2$81910

RentLeases signed in the past 12 months

  • 1 bedroom: $2,600 a month (13 leases)
  • 2 bedrooms: $3,400 a month (20 leases)
  • 3+ bedrooms: $4,100 a month (13 leases)

More on Union Square

Busiest condo buildings

Questions people ask

What is the price per square foot in Union Square, Somerville?
Condos: $808 (most sold between $701 and $866); Multi-family: $417 (most sold between $377 and $523); Single-family: $829 (most sold between $585 and $874). Past 12 months, verified market data.
How fast do homes sell in Union Square?
Condos: a median 18 days to an accepted offer (20 sales); Multi-family: a median 12 days to an accepted offer (8 sales); Single-family: a median 5 days to an accepted offer (5 sales).
How much is rent in Union Square?
1 bedroom: $2,600 a month; 2 bedrooms: $3,400 a month; 3+ bedrooms: $4,100 a month (leases signed in the past 12 months).

Other neighborhoods in Somerville

Somerville overall · Spring Hill · Davis Square · Winter Hill

Price check a listing here: is it priced right?

Agents and brokers who work in Union Square: get quoted in our coverage.