From 1900, development of the village became the responsibility of the Bournville Village Trust. Harvey remained in the Trust's employment until 1904 when he set up his own architectural practice. From 1914 until at least 1935 his firm, Harvey and Wicks, was based at 5 Bennetts Hill, an important commercial street in central Birmingham. He continued to design public buildings in the village, but also designed houses, estates, municipal buildings and churches elsewhere in Birmingham and further afield. His 1906 book on model villages helped establish him as an expert on low cost housing and his schemes were employed by several English local authorities. From 1918 he also sat on the Executive Council of The Birmingham Civic Society.