Efforts to save our heritage buildings over the years - successful and unsuccessful - are being researched by the winner of one of the biggest non-fiction prizes for New Zealand writers. Wellington freelance historian Ben Schrader has picked up this year's $25,000 Copyright Licensing Writers' Award. In the past Ben's written histories of New Zealand cities and State Housing. Now he's working on Won and Lost: Saving New Zealand's Built Heritage 1885-2016.