J. A. Chatwin became one of the most prolific architects involved in the construction or alteration of churches in Birmingham. Some of his most significant works include the Greek Orthodox Cathedral in Birmingham, which was completed in 1873, Aston Parish Church in 1879, and St Martin in the Bull Ring in 1873. As well as designing churches, he designed the King Edward VI High School for Girls on New Street in 1866 and Bingley Hall in 1850. His son P. B. Chatwin also became an architect, designing King Edward VI Handsworth in 1911 and St Mary the Virgin, Acocks Green Church and Church Hall, Acocks Green which opened around 1908.