A funny thing happened on the way to this year's Summit Hill House Tour. A theme emerged: twins -- as in four sets of paired houses.
"It happened very organically," said tour spokeswoman Cynthia Schreiner Smith. "As we started getting houses, we started noticing a trend."
The "twins" on this year's tour include two pairs of houses that were originally built as identical but are now very different, at least inside, thanks to the owners' remodeling efforts.
There's also a house that was built as a duplex and recently converted into two condos -- one modern and one traditional -- for three generations of the same family.
And there's a "double house" -- nonidentical Tudor Revival twins built in 1905 by two brothers and connected by a skyway. (The skyway is now closed, and the two homes have unrelated owners.)
All eight "twins," plus the other homes and buildings on this year's tour, are well-preserved survivors of 19th-century St. Paul and the neighborhood that epitomized its golden age, when the city's movers and shakers built their mansions on the bluff.
A century later, the neighborhood had begun to lose its luster. When the biennial tour started in the early 1970s, "Summit Hill was not the place it is today," Smith said. "That was during the craze of tearing down old buildings," and the big, old houses along and near Summit Avenue, many of them rundown, were prime candidates. "The tour was to help promote the neighborhood, show that it was livable and safe, with great homes," Smith said.
Today, Summit Avenue is still lined with more than 370 gilded-age mansions and other stately homes, representing a dozen different architectural styles. It was named one of "10 Great Streets" in 2008 by the American Planning Association, which called it the nation's "Best Intact Street from the Victorian era."