ONE of Hull's most innovative buildings has sold for just £21,000.
With its sloping roof and array of mini-wind turbines, the Arc design centre cost £750,000 to construct.
But during an auction today, the eco-friendly and mobile building was snatched up by property developer Terry Hodgkinson.
Bidding started at £5,000 with four interested parties.
Auctioneer Andrew Baitson said: "It would be nice for it to have gone for a little more but that was the best bid on the day.
"Mr Hodgkinson says he wants to try and keep the building local but hasn't said what it will be used for."
Aimed at showcasing design and architectural innovation as an exhibition facility and outreach project, it occupies a prominent city centre site next to Castle Street, near Hull Marina.
Constructed from five upturned caravans, it was officially known as the Humber Centre for Excellence in the Built Environment.
But the charity behind it has been forced to close because of a lack of funding.