Sharp, 25, saw off opposition from journalists on rival publications in the property, construction and architecture sectors to scoop the prestigious prize.
He won the award after making a considerable impact on the architecture scene, writing articles featuring international names such as Norman Foster and Frank Gehry.
The IBP judging panel, which included Wordsearch's Peter Murray and Ryder HKS chairman Paul Hyett, were particularly impressed with Sharp's use of sources.
'He demonstrated the energy, drive and determination that young journalists must have to succeed,' they wrote in their citation.
'We were impressed at how he successfully used and interpreted the access to people that he gained,' they added.