Thamas Stanley Lello was born in Ludlow, Shropshire, England in 1881 and was articled to Joseph Smith (1850-1920). He worked as an assistant to Henry Thomas Gordon (1845?-1922) and Josiah Gunton (1861-1930) of Gordon & Gunton in London; and to Frank Thomas Verity (1864-1937) in London. He commenced independent practice as an architect in Chadwell Heath, Essex in 1907. He was a Member of the Society of Architects (MSA) and was admitted a Licentiate of the Royal Institute of British Architects (LRIBA) in 1925.
Lello's address was given as High Road, Chadwell Heath, Essex, 100, Bellsize Road, South Hempstead, London in 1914; Stanetta, Chadwell Avenue, Chadwell, Essex in 1914 and 1923; and St. Margarets", Hornchurch Road, Romford, Essex in 1926 and 1934. He died in 1947 and was buried in Havering, London.
Chiefly church and domestic work. Congregational Church and Schools, Chadwell Heath; "Stanetta", Chadwell Heath; " Wilnett Lodge", Chadwell
Directory of British Architects 1834-1914. Compiled by Antonia Brodie, et al. Volume 2: L-Z. London; New York: British Architectural Library, Royal Institute of British Architects/Continuum, 2001