Rennie House is an inter-war industrial food processing building of some historic interest most recently occupied by Sainsburys. The consultancy was asked to advise on whether proposals to redevelop the site would raise heritage objections.
Research showed that Renee House was the work of Sir Owen Williams, who also designed the listed Daily Express building on Fleet Street. At Rennie House he employed the innovative wide span, flat slab structural system which he also used at the Boots HQ in Beeston (listed grade I). The technical innovation was found not to be unique or a particularly early example and inspection revealed a considerable level of alteration had been carried out. The consultancy’s report forms an application for a certificate of immunity from listing which was presented to English Heritage for their consideration. The case was accepted and the certificate issued.