Governor Allows Mercer Island Builders To Resume Construction Of Soulless McMansions Under revised social distancing rules, all new Mercer Island residences must be larger than 5000 square feet, with no less than 250 cubic feet of dedicated toilet paper storage space. (Image credit: City of Mercer Island) Posted By: staph April 30, 2020 Source: Details On The Governor’s Order Partially Restarting Construction Related