Welcome to 21 Foster Street! This spectacular townhouse in East Arlington offers over 2400 sqft of luxury living across three private floors and two exclusive-use basement storage rooms. Extensively renovated in 2019, with numerous improvements since, and is in like-new condition and equipped with the latest technology. An elegant open-concept kitchen featuring white shaker style cabinetry, granite countertops, and a large center island flows into a spacious living area with abundant natural light. The second floor is exclusive to the master suite, complete with a private spa-inspired bathroom and BONUS nursery/office space. The main level consists of 2 spacious bedrooms (one is an ensuite) plus another BONUS office room. Next to bus stops for all Red Line stations, Minuteman Bikeway, Spy Pond, Arlington Center, Alewife, Thompson Park, Boys and Girls Club, Thorndike Dog park, and much more!