Is Chuck filmed on a set or is that a real house?

It’s a set.

It’s not my real house.

pretty much everything in Hollywood is a set, but I will double check for you… :)

Real houses are often used for filming movies, but rarely if ever for TV. Too hard to get cameras and lights positioned and to control acoustics.

Real house exterior, set interior.

It is soooo hard to do lighting in a real house. Then add camera, camera moves, crew and proper sound.

Logistics nightmare.

I don’t watch Chuck, but I imagine the interior’s a set, at least. Easier to control logistics on a set, and cheaper for the production.