The Parr ruins in this movie are fake. A set they made for the movie. Nothing to find. I suspect the store was too. The church is real (cemetery scene). Jeff's place was made into apartments and has been remodeled. Located in Baltimore. You wouldn't recognize the building if you found it. Looks different now.
The shooting location for Jeff's house is not deep in the woods. On the dvd commentary the director says that the city skyline (Baltimore) can be seen just past the building. I'm guessing that's why the exterior shots of Jeff's place are all from the same side of the structure. The side with trees.
Should pale death with arrow dread Make the ocean caves our bed Though no eye of love might see Where that shrouded grave shall be Thou! who hear'st the surges roll Deign to save the suppliant soul