Located in the heart of bustling Union Sq in a desirable Prospect Hill n’hood, this charming Philly-style 2-FAM has been updated yet retains the integrity of the era… original wd moldings & doors PLUS gorgeous wainscoting, chair rails & crown molding. Many updates incl 2 hi-effic gas boilers, separately-metered & updated 200 amp CB elec, 32 gas-filled dbl-pane repl & storm windows, new comm HW tanks (2023-24), blown-in insulation, painted ext (2023), repointed ext brick foundation (2024), freshly-painted Unit 1 (2026), modern kitchens w/ white cab's & updated full ba's! A lovely yd boasts a patio w/ pavers, many perennials incl yr-round shrubs & trees, seasonal perennials & an irrigation system. Simply a perfect commuter location in Union Sq w/ dining, shopping & nightlife, a 5-min stroll to Green Ln, 10-min stroll to Inman Sq, 15-min ride to Harvard/ Bus 109. EZ access to Rte. 93, Memorial & Storrow Dr's & a 10-min drive to Assembly Sq!
| Units | 2 |
| Living area | 4,636 sqft |
| Lot size | 2,999 sqft |
| Year built | 1900 |
| Price / sqft | $377 |
| County | Middlesex |
| MLS # | 73476502 |
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Listing courtesy of a MLS PIN member office. Listing data © MLS PIN.
Auto-generated from the listing data — richer AI answers coming with the live site.
It is a 2-unit multi-family property with 4,636 sqft of living area, built in 1900.
At a list price of $1,750,000 across 2 units, that works out to roughly $875,000 per unit.
At $1,750,000 for 4,636 sqft, that's about $377 per square foot.
16-18 Columbus Avenue, Somerville MA 02143 is in Somerville, Middlesex County, MA 02143.

Justin Rollo is a Broker Associate with Signal Real Estate (MA Lic. #9534264) and a lifelong Massachusetts resident. Over 14 years and hundreds of transactions, he has worked investment properties — multi-families and house-hacking — across Greater Boston full-time. Away from real estate, Justin is a proud dad, youth coach and local school-committee member — and a former professional poker player who still loves golf and following local sports.