Shawmut has started construction on L3 Capital’s mixed-use commercial development at 149 Newbury Street in Boston’s Back Bay neighborhood.

In partnership with architecture firm Nelson Worldwide, the former parking lot at the corner of Newbury Street and Dartmouth Street will be redeveloped into a 5-story mixed-use retail and office building totaling 43,500 square feet. The state-of-the-art structure will feature 130 feet of frontage on Newbury Street, dedicated flagship retail space, exclusive office entrance, as well as a rooftop penthouse and outdoor terrace.

“Partnering with L3 Capital on this redevelopment is immensely exciting,” said Kevin Sullivan, Executive Vice President of Shawmut Design and Construction’s New England Region. “With its prime location in the heart of Boston’s coveted Back Bay neighborhood, our team will leverage decades of local market expertise completing complex urban projects and create a building that will strengthen the iconic pedestrian corridor.”

149 Newbury Street is slated to be completed in 2023 and will offer up to 16,000 square feet of retail space on the first two levels and 27,500 square feet of office space above all within one of the country’s strongest consumer and business districts.

Media Coverage: Boston Real Estate Times | High-Profile