For nearly 40 years, without the spires, the cathedral presented as a rather solid, horizontal mass. Construction of the spires began in 1926 to a new design by John Barr of Sydney, in a more traditional Gothic Revival style and with different stone from the Sydney area. It was also much taller than Butterfield's original design. The spires reached their full height in 1932 and on 30 April 1933 a service of thanksgiving was held for their completion. Once the central spire, named the Moorhouse Spire, was completed to its full height of 312 ft (95m), St Paul's became the tallest structure in central Melbourne and dominated the city's skyline when viewed from the south.