Available 9/15, 221 Charlest Street #1 is a modern 2-bed, 2-bath duplex puts you minutes from Kendall Square, Tech Square, East Cambridge, CambridgeSide, MIT, and Harvard. Designed for a work-and-city lifestyle, the main level opens into a bright living area and sleek kitchen centered around a generous island; an easy hub for weeknight dinners, coffee before the commute, or hosting friends. A living-room slider opens directly to a large private backyard with a deck, extending your entertaining space outdoors for al fresco meals, weekend gatherings, or a quiet reset between meetings. Two well-proportioned bedrooms and a full bath complete the main level. A striking spiral staircase leads to the lower level, where flexible bonus space can adapt to your needs: home office, media room, gym, guest space, or a place to decompress after the day. This level also includes a second full bath with shower and in-unit laundry. One off-street parking space adds everyday convenience in a location made for easy access to Cambridge’s major employers, universities, restaurants, shopping, the Red Line-Kendal Sq, #69 and #85 bus lines. First month’s rent and security deposit due at lease signing. $4,600/month.