Inside the Los Angeles castle built by a family's DIY empire

Courtney and Bob Novogratz have transformed dozens of properties all over the world, but they've never felt more at home than in their latest redesign.

The couple and their seven children - who have built their DIY empire over 25 years with books, reality shows, and a do-it-yourself aesthetic - have officially moved away from New York City and into their California dream home … er, make that their dream castle.

"We sold our house in New York two months ago [Ed note: for a cool $14.5 million] and finished our house here," Bob Novogratz tells Tech Insider. "It was a total gut job - it took 10 months."

Called "The Castle," the latest Novogratz project is nestled in the Hollywood Hills near the famous Chateau Marmont. Cortney previously told Tech Insider it's her favorite property the pair has done so far. Not only were their seven kids deeply involved, but so were the design clan's fans, since they were continually updating the plans on Pinterest, Instagram, Facebook, and their website.

Tech Insider spoke to Bob recently about the newly finished home, life in California, and the new Novogratz web series, "The Castle Next Door," which illustrates the painstaking redesign process.

"It feels like home for the first time to us," Bob says.

Keep reading to see life inside The Castle.