Mirage Colonnade Manor.

A central colonnaded portico (tall columns) and a symmetrical main façade
A steep slate roof with dormer windows and skylights
A sweeping, curved double staircase leading to the main entrance terrace
A modern glass-walled wing on the right side (sunroom/conservatory feel)
A long rectangular pool and stone terrace, with desert landscaping (agave, palms) and low perimeter walls