Jennifer Aniston, Justin Theroux Go Antique Furniture Shopping in Hollywood

Jennifer Aniston and fiance Justin Theroux shopped for furniture in Hollywood on March 28 George Pimentel/Getty Images

Call it Extreme Home Makeover: A-List Edition. Jennifer Aniston and fiance Justin Theroux are leaving no stone unturned, no detail unattended on their quest for interior design inspiration. In the past week alone, the couple have made not one but two trips to various upscale furniture stores in L.A., where they're in the process of renovating an 8,500-square-foot Bel Air mansion.

On Thursday, March 27, the engaged pair were seen perusing the selection of antique wares at a shop in West Hollywood. Six days earlier, they hit up three other stores — Lee Stanton, Therien, and Ralf's Antiques — in search of items for their not-so-humble abode. (The couple's $21 million pad has four bedrooms, six-and-a-half bathrooms, a swimming pool, and its own vineyard.)

A source tells Us Weekly the two were very friendly as they mulled over an array of 18th- and 19th-century "country antique" furniture. They were accompanied by their interior designers.

Aniston, 44, and her future husband, 41, have spent months looking for the perfect pieces to fill their sprawling new home. Last spring, during a visit to New York City, the actress picked out $20,000 worth of lights at B4 It Was Cool, a high-end vintage lighting store. And in October, she and Theroux met with designers at high-end Hollywood retailer Blackman Cruz, where they honed in on two brown, roomy leather chairs and an 18th-century armoire.

"Usually with a couple, there's one person that leads the way," an employee told Us at the time. "They were in it together. They really seemed to be enjoying this process."

For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!