This week’s Building sketch is by Hugh Broughton of Hugh Broughton Architects.

This is one of many hand sketches of the practice’s design for the development of the Harley Gallery on Welbeck Estate in Nottinghamshire. The new 800m2 gallery will display fine and decorative arts from the historic Portland Collection. The project has just gone on site and the Harley Gallery is currently hosting an exhibition of the redevelopment - “A behind-the-scenes look at architecture” -which is open to the public until 10 August.

To submit your sketches for publication please email or post via Twitter using the hashtag #buildingdoodle