Architecture of Washington DC See Also 1792Architecture of Washington DCJames Diamond Random Building 1794 – Design for Executive Mansion, Washington DC 1792 – Design for Congress House, Washington DC Home / Buildings / Architecture of USA / Architecture of Washington DC / 1792 – Design for Congress House, Washington DC Architect: James Diamond Proposal for a Congress House by James Diamond, 1792. Share this:TwitterFacebookMastodonRedditPrint Related Posts 1792 Architecture of Washington DC James Diamond Related Posts Latest Additions 1965 – Royal Insurance Group, College Green, Dublin 1971 – Extension to Royal Marine Hotel, Dún Laoghaire 1959 – Insurance Corporation of Ireland, Dame Street, Dublin 1899 – Campbell College, Belfast