Sowerby is a suburb of Thirsk and is positioned in the northern half of North Yorkshire on the flood plains of Cod Beck. It sits on the A19 trunk road at the junction with the A61 to the west and Ripon. Northallerton lies 10 miles to the north along the A168 and York is 25 miles to the south east along the A19. Thirsk has a station on the main east coast railway line.
A Conservation Area is defined as an 'area of special architectural or historic interest the character and appearance of which it is desirable to preserve and enhance'. The purpose of a Conservation Area is to protect wider landscapes of quality and the local distinctiveness of areas valued for their visual characteristics and historic associations