- The Denny-Blaine neighborhood of Seattle is located on Lake Washington between Madison Park and Madrona. It was developed just after the turn of the century by Elbert F. Blaine, an attorney and former Seattle Parks Commissioner, and by Charles L. Denny, son of Seattle founders Arthur Denny and Mary (Boren) Denny. They designed the neighborhood to follow the contours of the land, and included a series of hillside parks. The lots intermingle with streets, lanes, parks, fountains, and cul-de-sacs, virtually all of which have views of Lake Washington.