The house is on the A33 as it leaves Basingstoke heading north. It used to be at the southern end of the Reading to Basingstoke turnpike. The original tollhouse is the octagonal structure on the right of the picture; in the '80s the second octagon was added, more than doubling the size of the house.
This is a grade II listed building, listing details can be found here.
The pictures below were taken in February 2012.