He was surveyor to the Pulteney and Darlington estate and responsible for many of the later Georgian buildings in Bath, especially in Bathwick.
Pinch married Martha Cleave (1772 – 1830) on Christmas Eve, 1792 at St Mellion, Cornwall.
His son, John Pinch the Younger, was also an architect and surveyor to the Pulteney and Darlington Estate.
His daughter, Celia Pinch, married the silversmith William Holme Twentyman on Mauritius.
Pinch also has his own projects in Bath[4] including, between 1808 and 1815 Cavendish Place,[5] Cavendish Crescent (1817–1830),[6] Sion Hill Place (1817–1820),[7] Cleveland Pools (c.1814),[8] St Mary's Church, Bathwick (1817–1820),[9] Spa Villa, Bathwick Hill (1820), Prior Park Buildings, a terrace of 19 houses off Prior Park Road, built from 1820, St. Michael's Church, Twerton (1824) and the Royal United Hospital (now Gainsborough Hotel) in Beau Street, Bath (1824–1826).