With a design attributed to noted Boston architect Horace Frazer, this grand shingle-style waterfront home in Osterville’s Wianno Historic District has provenance to spare. Built in 1888, it is part of Cape Cod’s early development as a summertime retreat, so its renovation needed to honor that rich history and also look to the future. Frazer designed many of the homes in the area, including the Wianno Club nearby.