Chanteuse Ariana Grande put down substantial real-estate roots in Los Angeles this month when she shelled out $13.7 million for a three-level, spec-built leviathan in the Hills near Sunset. Ms. Grande’s new home measures nearly 11,000 square feet, and is designed in the reticent contemporary fashion of modern, with plentiful natural-toned hardwood, tons of marble, and style influences that borrow from Scandinavian and Eastern interior design.

The shared living areas are wide open, with living and dining spaces divided only by an accent wall containing a gas fireplace open on three sides. The kitchen features floor-to-ceiling cabinetry in hardwood, with a large center waterfall island in natural stone.

The lower level is more or less a lounge or entertainment salon, with a living area, a wet bar, and a wine room. A glass-walled staircase with illuminated treads connects the levels, although there is an elevator in the home as well. Throughout the home, optional glass walls may be opened to connect indoor and outdoor living spaces. Amenities include a cedar spa and guest suites.

There are four bedrooms and six baths in the home. The upper level is dedicated to the master suite, a labyrinthine complex with a sitting room, various built-ins, a large walk-in closet and dressing room, and a very large bath that is finished in slab marble. Glass walls may be rolled away for a large indoor/outdoor terrace that overlooks the Hills and the city, as well as the pool and patio area below.

Ms. Grande’s purchase in Los Angeles came just before another: the young singer recently shelled out $6.75 million for the Tudor in Montecito which Ellen DeGeneres has had on the open market for about a month.