The Châteauesque or French Château style rarely survives in Colorado today. Examples existed at the turn of the twentieth century in the Capitol Hill area of Denver but only one high style example remains.
The steeply pitched gable or hip roof and multiple towers with conical roofs define the Châteauesque style. Dormers with shaped gabled and paired windows divided by mullions and transoms are also common characteristics.
Simpler examples exhibit elements of the style on a smaller scale. Towers with conical roofs and dormers in the steeply pitched roof are evident. Tall chimneys with decorate caps are found on some examples.
What makes a house a Chateauesque?
Common elements of Terrace: steeply pitched roof, towers with conical roof, dormers, paired windows, transom bar, mullions, truncated hip roof, roof cresting, semicircular arches.
Where to look
Beautiful example of Chateauesque house is the Patterson Inn designed by architect Isaac Hodgson in 1891. It located at 11th Avenue and Pennsylvania Street.
Sources: https://www.historycolorado.org, https://bringingfrenchcountryhome.blogspot.com/