They also used this same house (in the 7th episode, "Chemistry") for the scenes of Laurie's home, the sister-in-law of Hannah McKay.
Debra goes to her house to convince her to allow the police to dig up the remains of her brother (Hannah's husband), to see if they can find proof that Hannah poisoned him. She agrees, but later it turns out that Hannah didn't have him embalmed, so they can't perform the tests.
They only used interiors for the Laurie scene, shot in different areas of the house (from when they were shooting the Sal Price scenes), and redecorated accordingly.
Q. How the heck did you figure out where it was?
A. In the early seasons, I usually had to hunt down the locations after viewing the episodes,
using clues from the various scenes. By the now, though,
I've developed a small group of fans, spies & tipsters who kept an
eye out for Dexter filming in their neighborhoods, and would let me know
in advance when something was about to film there.
Between those reports, my own personal reconnaissance around town, and a
few new resources I discovered, by the time the first episode airs, I
already know most (but not all) of the filming locations, and only
need to watch the episodes and match up the scenes with the correct
This group of helpful fans includes Rick, Ellen, Elaine, Mia, Joel, Susan, Eric, Jeff, Kerry & others. My thanks to all of
This tip came from Rick, who also shot the photos you see above.
Rick also spotted the fact that this same place was used as Laurie's house, discovering some production photos online which showed the house being prepped for the shoots. (Thanks, Rick!)