Bowker Sadler Partnership Limited is an award winning, design led, architectural practice specialising in innovative and environmentally responsive projects for the built environment.

The company was founded in 1983 by Peter Bowker RIBA MCI Arb MAE and Alan Sadler MCIAT. Paul Jeffrey RIBA joined the Practice in 1989 and became a Director in 2002. Colin Leith became a Director in 2007.

In 2006, the Practice opened its new office in Newcastle Upon Tyne having consolidated the former Practices of The Howe Partnership and Bill Hopper Design into Hopper Howe Sadler Limited, a subsidiary of Bowker Sadler Partnership.