Thomas Henry Nowell Parr FRIBA (1864 – 23 September 1933) was a British architect, best known for designing pubs in west London.

The Market eventually became a skateboarding rink, and was also used as a backdrop for episodes of The Sweeney, the 1970s British television police drama.

He later went into partnership with fellow architect A. E. Kates, and was also joined by his son, John Nowell Parr (died 1975).

[8] Parr is notable for his frequent use of Royal Doulton glazed tiles for his pub facades, often in bright or unusual colours, such as green and a mottled slate blue at the Beehive (which has a beehive-shaped turret on top) in Brentford in 1907.

[8] There is a block of flats named Nowell Parr Court at Boston Manor Road, Brentford, Middlesex.