"imposing house" is correct and usable in written English.
You can use it to describe a large, grand house, such as the one belonging to the local lord. For example, "The lord lived in an imposing house that overlooked the village."
They lived within a block of the imposing house of Barnie's younger brother, George Chaffee.
He bought a plot with an imposing house and began building: adding a gym, villas and a tennis court.
Ref: KE008 (ruralretreats.co.uk) The Manor House, Shropshire Hold your own tournament on the grass court of this imposing house.
Trapped in an imposing house with a handsome man, Liese thinks of "how close a nightmare can be to an exquisite dream".
Masked men had entered an imposing house, lined up the houseparty guests, and got away with pearls and jewelry worth $200,000.
The imposing house is large and rambling, with a Regency frontage – built during an agricultural boom – hiding a much older house behind.
Other reforms include changes to housing benefit and the scrapping of regional spatial strategies (RSSs) under the localism bill – going ahead after a legal dispute – that was criticised for imposing house-building schemes on communities and sometimes in protected green belt land.
The most imposing houses in the Gardens are on the broad arc of Greenway North.
Two new, imposing houses had been built next door, and, so I was told, also belonged to Ahmed Wali.
On the other side of the highway were small suburban houses that, within a few miles, gave way to larger and more imposing houses in the hills.
They lived in imposing houses in the hills and imported artisans, probably from Antioch, to decorate them in a style befitting their lofty station.
