The Fullerton Hotel Singapore is a five-star luxury hotel located near the mouth of the Singapore River, in the Downtown Core of the Central Area, Singapore. It was originally known as the Fullerton Building, and also as the General Post Office Building. The address is 1 Fullerton Square. The Fullerton Building was named after Robert Fullerton, the first Governor of the Straits Settlements (1826–1829). Commissioned in 1924 as part of the British colony's centennial celebrations, the building was designed as an office building by Major P.H. Keys of Keys & Dowdeswell, a Shanghai firm of architects, which won the project through an architectural design competition. The architectural firm also designed the Capitol Theatre, its adjoined Capitol Building and the Singapore General Hospital.