Kourtney Kardashian's Rules for Styling a Super-Cool Kids Room

When it came to styling her six-year-old son Mason's bedroom, Kourtney says imagination was key. "The most important thing a kid’s room has to have is some element of magic, something that really sparks their imagination," she says. "In Mason’s room, we put a Ralph Lauren wallpaper of star constellations on the ceiling; his night-lights are star projectors. Before bed, when we’re singing songs and scratching backs, it feels like we’re in outer space."

Before having a family, Kourtney admits she pictured the ultimate chic nursery to be all-white. Now, she says she understands the importance of styling a room to suit your child's personality and added playful furniture and colorful accents to match. "When I was pregnant with each of the kids, I just wanted them to have all-white rooms. But as the pregnancies progressed, their personalities started speaking to me. With Reign, I suddenly decided to replace the white leather rocker I always had with a black one. I also had his crib painted in a beautiful gray. It felt right."

Kourtney wanted each child to have a room that reflected their individual style, while still working with the existing décor in the house. She says involving her kids in the design process allowed them to feel part of the process. "Mason was set on having bunk beds. Penelope is a pink girl, so she got a bed upholstered in pink velvet. She also had to okay the Jean Royère chair covered in woolly sheepskin," she told AD. "I don’t recall getting her opinion on the Serge Mouille ceiling light, which came from our old house, but I got matching sconces for her bathroom."

Both children's and interior design trends can change in an instant, so Kourtney designed the rooms with interchangeable décor. "I try to keep the backgrounds pretty neutral and get the hits of color from the toys and the fabrics. That way, you can easily change the vibe of the room without turning it inside out," she says. "In Penelope’s room, I chose a soft blush-pink instead of a hot pink for her bed so that it wouldn’t get stale too fast."

Kourtney's interior designer paid special attention to storage to ensure the kid's rooms remained clutter-free. "One of his best suggestions was to put a big bulletin board in a simple white-lacquered frame in Mason’s room. We put up pictures, notes, mementos from trips—it’s great to have one place to put it all so it doesn’t junk up the room."

They also sourced toy bins that doubled as playful statement pieces. "We have these stackable Lego storage bins that organize all the toys and are also super-fun and colorful. Those are for the small toys. The bigger ones we display on an interesting shelving system. Once again, it looks great—I really like seeing the toys—while it helps keep the room in order."

Love Kourtney Kardashian's interior design style? Shop 19 crazy-cool finds for kids' rooms, then check out Architectural Digest to read more of her styling tips. 

How do you inject personality into your kids' rooms? Share your tips in the comments below.