About 1825 he settled in Halifax, Yorkshire, and in the same year he married Hannah Glover at St Michael le Belfrey in York. He took a post as assistant to John Oates and there befriended the brothers John and Edward Welch, with whom he formed his first architectural partnership (Handsom & Welch) in 1828. Together they designed several churches in Yorkshire and Liverpool, and also worked on the renovation of Bodelwyddan Castle in Denbighshire and King William's College in the Isle of Man. In 1831 their designs for Birmingham Town Hall were accepted; however, the contract led to their bankruptcy, as they had stood surety for the builders. The disaster led to the dissolution of the partnership.