Allen has a long background in accounting, business analysis, risk management, tax, and finance, mostly in property and construction.
Starting as a partner in a major accounting firm, he was then CFO for three listed property companies and for ten years was CEO/ CFO of Tramco Group, which managed and financed several large privately held leasehold land owning partnerships including Viaduct Harbour Holdings, Tram Lease, Quay Lease, Kiwi Forests, Wairakei Pastoral and Calland Properties Ltd. He is now an independent business and finance consultant and Director, still advising Tramco and is an independent trustee for the Wyborn and Green families.
He is the Government approved independent director of Tamaki Makaurau Community Housing Joint Venture and Chair of the Odyssey House Board of Trustees. Allen joined the Board in April 2017.