H. Percy Adams & Chas. Holden [also known as Adams & Holden] was an architectural partnership formed in London, England in 1907 by Harry Percy Adams (1865-1930) and Charles Henry Holden (1875-1960). In 1913 Lionel Godfrey Pearson (1879-1953) joined the partnership which was renamed Adams, Holden & Pearson.
Architectural projects by Adams & Holden included the British Medical Association headquarters in London (1908); the Women's Hospital in Soho Square, London (1908); Apsley Heath Lodge at Woburn Sands, Bedfordshire (1908); Homeopathic Cottage Hospital in Southport, Lancashire (1909); Evelyn House, Oxford Street, London (1909); “Rignall’s Wood”, Mapridge Green Lane, Great Missenden, Buckinghamshire (1909-10); and Queen Elizabeth College and Queen Mary Hall, London (1913-14)