The current building was built between 1912 and 1913, designed by J. S. Gibson, in what Pevsner called an "art nouveau gothic" style, and decorated with medieval-looking gargoyles and other architectural sculptures by Henry Charles Fehr.
Middlesex | Guildhall School of Music and Drama | Middlesex County, Massachusetts | Middlesex County | Middlesex Hospital | Middlesex University | Guildhall | Guildhall, London | Middlesex County, New Jersey | Middlesex County, Ontario | Westminster, Middlesex County, Ontario | Southwest Middlesex, Ontario | Middlesex (UK Parliament constituency) | Middlesex Regiment | Middlesex Cricket Board | Lionel Cranfield, 1st Earl of Middlesex | Guildhall Museum | Windsor Guildhall | South Middlesex Opportunities Council | South Middlesex Correctional Center | Society Hill, Middlesex County, New Jersey | Roger (Archdeacon of Middlesex) | North Middlesex Hospital | Middlesex Yeomanry | Middlesex, Vermont | Middlesex Savings Bank | Middlesex House of Correction (Westminster, London) | Middlesex House of Correction | Middlesex High School | Middlesex Guildhall |
Buildings looking upon the square include the churches Westminster Abbey and St Margaret's, Westminster, the Middlesex Guildhall which is the seat of the Supreme Court of the United Kingdom, Government Offices Great George Street serving HM Treasury and HM Revenue and Customs, and Portcullis House.