Under Construction Custom homes, apartments, backyard cottages & ADU/DADU units. Home » Projects Under Construction » 3026 SW Charlestown Street Seattle, WA 98126 w Ask An Expert (206) 552-9791 3026 Charlestown Custom design and construction of seven townhomes, each 1,300 square feet. CONSTRUCTION COST: In Progress ADDRESS: 3026 SW Charlestown Street Seattle, WA 98126 TYPE: Townhome COMPLETION DATE: Currently in Progress