These model houses and barns for the American Civil War (or American War of Independence) were custom made by Frank Patterson of Ledarmy. Frank also made the excellent modular roads which traverse the countryside on my wargames table. What makes Frank's structures so useful is that they do not have an over-large footprint but still add historical flavor and aesthetic appeal to the game table. Frank produces these and other custom items.
Frank can be reached at:
The "White" House
The Cabin
These buildings work perfectly with 28mm figures without "crowding-out" the battlefield.
The Woodman's House
The Big Brown Barn
The Big Red Barn
And one building I made myself from the Perry/Renedra plastic kit:
"Meade's HQ at Gettysburg"