Jennifer Aniston Rushes To Complete Renovations On $21 Million Bel Air Mansion Ahead Of Wedding

They're really working overtime!

Renovations on Jennifer Aniston's $21 million Bel Air mansion are going full speed ahead, fueling speculation that the actress and fiance Justin Theroux are rushing to complete their remodel so they can tie the knot there!

The Just Go With It star and her man purchased the 8,500 square-foot abode at the beginning of last year, and there have been crews of more than 60 people working day and night to make the place perfect before move-in.

When we photographed the property back in November (left) there was tons of work to be done, but as of yesterday the house (right) looks almost complete! The Friends beauty ripped out vineyards in the yard to make room for a pool and jacuzzi, and now she's got both!

We also spot a clay-top tennis court!

From the looks of things, Miss Aniston purchased trees and greenery to re-landscape the grounds.

We're dying to know if the wedding we've all been waiting for is going to be a backyard affair!