Unit 2 at 18 Traill Street in West Cambridge may as well be a townhouse. It's 5,557 square feet, with five bedrooms and five and a half bathrooms, plus a one-car garage and an paire/in-law suite on the lower level (and it has a lower level). As it stands, the spread is technically a condo and, as such, it has been the most expensive condo on the Cambridge housing market. Until now. Unit 2 has gone to contract. The whole shebang wants $3,495,000, which is its original listing price going back to early February. Stay tuned for the closing.
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