for residential housing rather than the college and school buildings in Nottinghamshire. For most of 1964, she went to the United States on a scholarship from the Royal Institute of British Architects (RIBA) to study prefabricated timber housing. Tinsdale's 1967 report Housebuilding in the USA inspired the imperative to move forward alternatives to sub-standard residential tower blocks following the 1968 Ronan Point gas explosion disaster that killed four people. After the Department of Transport and the Ministry of Housing and Local Government were merged to become the Department of the Environment in 1970, she was made its Housing Development Directorate. In 1972, Tindale left the research sector to lead the Building Regulations Professional Division. As a consequence of her work, the government adopted the CLASP building system for residential housing, with 250,000 homes built by this method by 1975. Tindale oversaw the construction of Wokingham's Gorse Ride South estate in Finchampstead, a first of its kind inspired by research into 100% timber framed and clad properties, and Bethnal Green's Granby Street, which were published by her department. In 1982, she was appointed the Department of the Environment's chief architect, a position created by Michael Heseltine after lobbying from the RIBA. During her time in the post, Tindale steadied the decline in public housing construction and affected government policy on design after a controversial competition for the National Gallery. This was the final time an architect in the civil service was influential in architectural education and design and built a team of architect advisers. In 1986, she retired from the civil service, and her position was abolished due to government interest in building declined and the influence of public service architects declined. In retirement, Tindale continued to promote architectural through the RIBA committees, and chaired the Housing Design Awards from 1984 to 1993. She served on the Building Regulations Advisory Committee and the board of the Anchor Housing Association. Tindsale was active in the Reform Club and the Weavers Guild. Personal life She had a massive stroke in 1997 and spent the next 14 years in the Balham nursing home Minnie Kidd House, where she died of ischemic colitis on 13 May 2011. Tindale was unmarried; she worked at the Civil Service at a time when married women were expected to leave it. Legacy Noel Wurr, a fellow architect, described Tindale as "great administrator but she was also very into the