Inside Lauren Conrad's Beverly Hills Penthouse

Stacks of fashion books are a mainstay in Conrad's home office. The rug is made from recycled silk saris; the couch is upholstered in a complementary punchy shade. "I always gravitate toward feminine details," said Conrad. "On a garment it’s a bow; on a sofa it’s tufting."

A sunny corner of the kitchen features a custom-tufted banquette curved around a classic Eero Saarinen table.

When she was planning the master bathroom, a designated area for hair and makeup was a priority. "For years we’d have to do it in the kitchen because it had the best counters and light," says her longtime makeup artist, Amy Nadine. "I'd always think, 'One day can you build a real vanity in your bathroom, please?'"

"I wanted the living room to feel like an airy New York loft," says Conrad of the space, which boasts a soaring ceiling and is awash in neutrals, with touches of pink and gold.

To add visual interest to the living room walls, Conrad added molding and a brick veneer that she had whitewashed to look more aged. The chimney-less fireplace is decorative and burns alcohol.

"This is my dark and sexy room," Conrad says of the mirrored cocktail bar with a black lacquered ceiling.

Conrad's vintage dining room table and chairs play off the contemporary brass light fixture she was charmed by. "It looked like a sea anemone to me!"

Conrad had the existing staircase reconfigured to create something more sculptural and enclosed. "Before, you could see through the steps," she says. "Now it’s more elegant."

To keep her kitchen organized, Conrad stacks her all-white everyday dishes on the open shelves above the sink. "All food looks more appealing on white plates," she says.

In her expansive dressing area, Conrad opted for multiple glass-paned closet doors so that she can see her wardrobe at a glance.

With its sliding pocket doors and studio-size dimensions, Conrad's walk-in wardrobe would set any fashion lover’s heart aflutter. "My dream was to have a switch that made the doors open automatically to the sound of a heavenly choir," she says jokingly. "On the inside it’s organized chaos, but I know where everything is."