Tinhouse among best buildings shortlist

Judges said the Tinhouse celebrates the corrugated metal sheeting commonly used in agricultural buildings in a contemporary way

A tin house on the Isle of Skye is among 27 contenders for the Royal Incorporation of Architects in Scotland (RIAS) 2017 awards.

The new base for the National Theatre of Scotland and the headquarters of energy giant Ineos are also on the awards shortlist.

Judges said the quality of Scottish architecture was on the rise.

Entries will be eligible to win awards in a number of categories including the Best Building in Scotland Award.

The winners will be announced on 10 June.

Ineos headquarters at Grangemouth was said to be an "understated, elegant building"

Rockvilla - National Theatre of Scotland HQ, Glasgow

Aerial Adventures in East Kilbride shopping centre

City of Glasgow College – City Campus, Glasgow

Dalkeith Corn Exchange - the formerly abandoned Jacobean-style, market hall has been fully refurbished

Due West in Argyll - "maximises stunning views from a spectacular cliff-top location"

Dunfermline Carnegie Library & Galleries - new features integrated into original library

Eastwood Health and Care Centre in East Renfrewshire

Edinburgh Road, Musselburgh - Built into the sea wall, a new timber-clad extension

Fernaig Cottage in Wester Ross - renovation, adaption and extension of a dilapidated former shepherd’s longhouse

FetLor Youth Club, Edinburgh - a building quick to construct, economical, easily maintained and robust, on a tight budget

Glendale Primary School and Bunsgoil Ghàidhlig Ghleann Dail in Glasgow- integrates two school populations while maintaining individual identities

Holyrood North Student Accommodation and Outreach Centre in Edinburgh's Old Town

James Gillespie’s Campus, Edinburgh - "Five new buildings vary from single to three storeys to create transformational teaching spaces"

Moray Place, Edinburgh - The challenge was to create “one of the best apartments in Edinburgh”, respecting the original building

Newhouse of Auchengree, North Ayrshire - "a contemporary farmhouse that reflects the special architectural identity of the area"

Noss Primary School, Wick - "This new primary is composed of a series of extruded linear wings"

Oriam – Scotland’s Sports Performance Centre, Edinburgh - "Designed for high-performance athletes as well as students and the public"

Pennywell Residential Regeneration, Edinburgh - "These apartment blocks are designed to be tenure “blind”, with no visual distinction between affordable rented and for sale"

Portobello High School - "this is the largest capacity high school in Edinburgh, catering for 1,400 pupils"

Powis Place, Aberdeen - "This student accommodation features a sheltered forecourt, a glazed common room and reception areas"

Rosefield Home Studio, Edinburgh - "It was converted from a stone garage at the end of the garden"

Ruins Studio, Dumfries - "This rural “refuge” rises from the ruins of a 19th century farm"

Scottish National Waterski Centre, Dunfermline - "This reworking of the original, multi-use, building at the loch-side waterski centre at Townhill Country Park is a bright and expansive space to match skiers"

Thistle Foundation Centre of Wellbeing, Edinburgh - "This facility offers a warm and welcoming environment to support those with disabilities, helping them to live independent lives in their own homes"

Windmill Community Campus, Kirkcaldy - This community campus in Kirkcaldy integrates Viewforth High School, Rosslyn ASN School, a public library and a council customer service-point around a central internal ‘street.’