For many adults, tree houses conjure
only fond childhood memories
of secret clubs and the movie "The
Swiss Family Robinson."
But for some, according to Seth
Tibbots, tree houses are home.
Tibbots, a tree house dweller, is
currently researching a book on tree
houses of the world with Laura Ewig
Earbarrentine. He estimates that as
many as 400 "serious" tree houses
with electricity and plumbing are in
the United States.
This count does not include the
crude platforms made by adolescents.
It only considers multilevel structures
with between 1,000 and 3,500
square feet of living area.
The tree house pictured here, for
instance, is as typical as this idiosyncratic
form of housing can be. It has
about 1,000 square feet