A new window creates sight lines through the house and views for Sadie, a Cavalier King Charles spaniel.
Paint (“White Dove” #OC-17): Benjamin Moore & Co., 888/236-6667, benjaminmoore.com. Stair runner (“Herringbone,” Woolcord Collection): Saxony, 561/276-6774, saxcarpet.com; through Myers Carpet, 866/450-5551, myerscarpet.com. Upholstered settee: custom. Hanging lantern: original to house. Demilune table and mirror; area rug: antique. Stool on stair landing: owner’s collection. Lantern on stool: antique.