The five finalists include Enric Miralles and RMJM's Scottish Parliament building in Edinburgh - which is also one of the frontrunners for this year's RIBA Stirling prize.
With a top prize of £25,000, the Doolan award for the Best Building in Scotland offers the biggest cash windfall of any architecture prize in the UK.
The other schemes in the running are: Gareth Hoskins Architects' Community Centre for Health in Partick; the A'Chrannag housing development in Rothesay by G Deveci; Edinburgh Quay, Phase One by Michael Laird Architects; and Gordon Murray + Alan Dunlop Architects' Sentinel Office Development in Glasgow (pictured).
This year's judging panel includes: Douglas Read, the president of the RIAS; David Porter, head of the Mackintosh School of Architecture; architect Kathryn Findlay; and Anthony Reddy, president of the Royal Institute of the Architects of Ireland.
Among the previous winners of the prize are Sutherland Hussey Architects, who scooped the title in 2003 with a ferry shelter on Tiree.
The 2005 winner will be announced at a ceremony in the Point Conference Centre, Edinburgh, on Wednesday 5 October 2005.