Adjaye Associates has unveiled concept designs for a new public library in Oregon that would be more than double the size of the practice’s Stirling Prize shortlisted Idea Store in Whitechapel, east London.

Its early-stage proposals for East County Library in suburban Portland have been created in conjunction with local practice Holst Architecture and envisage an 8,800sq m facility that includes an auditorium for cultural events as well as reading and computer areas.

Adjaye’s Idea Store, which was completed in 2005, offers 3,440sq m of space over four floors. It does not have a dedicated auditorium, however.

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