Suffolk Construction is moving its office within Downtown West Palm Beach after signing a 19,000-square-foot lease at the Echo boutique building. The builder will relocate to the top floor of the four-story building at 205 Datura Street, which sits adjacent to South Narcissus Avenue, the tenant announced. The new office sits about three blocks east of Suffolk’s current digs at 426 Clematis Street. Toronto-based family office Coco Group purchased Echo for $45.7 million last year. The building includes about 71,000 square feet of office space, 10,000 square feet of ground-floor retail and a 257-space parking garage.