Over the course of 100 days, I built a luxurious two-story underground house, designed like a millionaire’s retreat, using ...

Underground space can be valuable, but there's a simple explanation as to why some houses don't have basements built along ...

On the home's lower level, which provides walkout access to the backyard, there's an eight-seat home theater, a kitchen and a ...

An empty lot on the street next to President Donald Trump’s Mar-a-Lago Club has sold for $19.5 million with town-approved ...