He was initially a clerk (later builder and assistant) to plumber, glazier, and politician Thomas Warr Attwood.
The Chapmans were a local political family, and a month after his marriage he was appointed Deputy Chamberlain to the Corporation of Bath.
[1] Between 1790 and 1792 Baldwin refused to provide financial accounts to The Improvement Commissioners and the Corporation of Bath.
She writes that the late 18th century saw a country wide speculative boom in town building and personal bankruptcies.
[1] He died at age 70 in his Great Pulteney Street terrace house home, which he had designed.
He was one of the leading architects of Georgian Bath, designing some of its principal buildings, mainly in a Palladian style, with Adamesque detailing.