Thomas Mainwaring Penson (1818–64) was an English surveyor and architect.
He and his brother, Richard Kyrke Penson, then trained in their father's practice.
[1] He designed buildings in the area of the practice, including stations for the Shrewsbury and Chester Railway.
This has been designated at Grade II in the National Register of Historic Parks and Gardens.
[3][4] He is credited with pioneering the Black-and-white Revival (vernacular or half-timbered) style in the city during the 1850s.