One of thousands of varieties of the Turn-of-the-Millennium Home Developer Mishmash Pretension Style. Perhaps in the future it will be referred to as American Late Elizabethan II Style.
The "style" is commonly referred to as Mc-Mansion. Oddly enough, it's not region specific so the style tends to pop up in many areas across the USA regardless of local history and culture, urban planning common sense or environmental sensitivities.