Next Up HGTV Smart Home 2015: Construction Diary Over the span of a few months, HGTV Smart Home 2015 will be built into a high-tech haven in Austin, TX. Take a tour of the home under construction. 1 / 40 Photo: Rachel Kay. From: Behind the Build: HGTV Smart Home. More photos after this Ad 2 / 40 Photo: Rachel Kay. From: Behind the Build: HGTV Smart Home. More photos after this Ad 3 / 40 Photo: Rachel Kay. From: Behind the Build: HGTV Smart Home. More photos after this Ad 4 / 40 Photo: Rachel Kay. From: Behind the Build: HGTV Smart Home. More photos after this Ad