Denise Richards -- Welcome To Charlie's Neighborhood!

Charlie Sheen truly believes in one BIG happy family, because TMZ has learned he's moving Denise Richards into a home a stone's throw from where he lives.

Denise is moving into the home Charlie purchased earlier this year from movie mogul Mike Medavoy, located six houses down from where Charlie lives, in the same gated community.

Our sources say Charlie and Denise are now getting along reasonably well, and Charlie's primary motivation is that he wants to spend more time with their two kids. Some of Denise's stuff has already been moved in, and we're told she and the kids will begin living there in a week or so.

But it doesn't end there. We've also learned ... Charlie is looking to purchase a third home in his gated community for Brooke Mueller and the twins.

Charlie is truly a family man ... a multiple family man.