For anyone with four walls, or a walled estate, ready to be decorated, redecorated, or simply face-lifted, West Hollywood is the promised land. The Design District will roll out the red carpet, or a room-size faux zebra for that matter, and you can take it from there. The shops, studios, and ateliers listed here are all near the Pacific Design Center, home to another 130 interior-design showrooms. In some cases, the floor samples are available with a swipe of your credit card. Usually the welcome mat is out for anyone, but if “to the trade” is store policy, there will be an introduction to a top-tier professional designer to help guide your choices.