There are two major styles competing for predominance throughout the 20th century – traditional and modern.
In general, it has been agreed that traditional house style has taken priority, but there has still been a strong following for modern interior design trends too.
The colonial style interior design proved exceptionally popular in the first half of the 20th century, with two major sub-styles outlined.
Both Early American and 18th century themes were frequent occurrences found in classical colonial homes.

Americans have long selected their favorite styles from the best of European culture and incorporated them into their own decorative techniques, an example in this respect being the Dutch colonial style. During the latter half of the 19th century, many public buildings were designed with historical European architecture in mind and a strong lean towards the classical homes interior. During this era, traditional American colonial style decorating was considered to be dull and old-fashioned, but homeowners were still firmly rooted in the traditional concepts and clung to the colonial and, to their definition of a patriotic, design theme.
The Peak of American Colonial Interior Design

The traditional colonial style of decorating originated in 18th century America, borrowing heavily from typical European residences of the day. The twist, however, was that the grandeur added to the farmhouses found here, in the New World.
English immigrants into the country brought w...