Oxford Archaeology (OA) has carried out a programme of investigation and recording at Weir House in Guildford, Surrey, a Grade II Listed Building owned by the National Trust and situated in a Conservation Area. The house is in good condition and currently inhabited by tenants. The work is in advance of any possible changes that may be proposed in the future so that informed conservation recommendations can be made for practical and effective management that will not compromise the buildings special features and overall historic value. Weir House is a late 18th /early 19th century Regency Villa with later 19th and 20th century additions. The house, its associated outbuildings and its garden are situated on a piece of land, also owned by the National Trust but leased separately, close to Guildford town centre. It is a rare surviving example of a villa of this type in an urban context and it remains almost unaltered both internally and externally. As well as a record of the historic fabric and structure, part of the survey focused on a detailed description of the original fixtures and fittings inside the house as well an analysis and interpretation of the phasing and development of the building. Historic research and map regression was also carried out to provide an historic background to the site with an aim to a better understanding and interpretation of the building and its context.