I talked to a renter who lives in the adjacent light blue house, but he didn't know anything about — or even seem remotely interested in — the dozen antique vehicles crammed into his side yard.
We've come across one of these trucks before, by the way, parked just around the corner. It had some rather peculiar occupants at the time.
The building at the rear appears to be an old stable. You can see the hayloft door and a beam above it that would have been used to hoist the hay. And, if you zoom in, you can spot a horseshoe hanging between the two upper-story windows.