What a weekend retreat this would be! A tract house on a verdant cove on Lake Austin was nearly awash in bad seventies architecture and interior design. But the site was incomparable, with the lake fronting two sides of the property. The new owners loved the location and even wanted to save the house, which spoke to them about casual lakeside living. Furman+Keil Architects rendered a stunning renovation to the wood and glass building, turning it into an indoor-outdoor house that’s perfect for entertaining both formally and informally. Fern Santini played up the new architecture with elegantly relaxed furniture and an expertly curated array of contemporary art by local artists. Touches of absolute luxury—such as plaster walls in the master bedroom, all-out glamour in the gold-and-white tiled master bath, and a Kyle Bunting rug in the dining room—are reminders that being casual doesn’t preclude being very very stylish.