The northwestern boundary is formed by the River Thames before passing through the middle of the Thames Valley Park. The southern border follows the railway line. The northeastern boundary travels over Charvil Hill and follows the edge of the housing at Charvil itself until it reaches the confluence of St Patrick's Stream with the Thames, near St Patrick's Bridge. The northern corner of the parish consists of very low-lying land adjoining the River. The Sonning Golf Course sits in the southeast corner, with Holme Park, Sonning Hill and the business park in the southwest, and the village roughly in the middle.