BWP Trust builds with Bunnings DESPITE counting Wesfarmers' Bunnings chain as a major tenant and Wesfarmers as a 24.31 per cent shareholder, BWP Trust has been able to reap rental increases that general manager Grant Gernhoefer concedes have raised pulses at the conglomerate. Mr Gernhoefer told The Australian the annual 31.4 per cent rental rise to $1.22 million it hit Bunnings with after a rental review of its Geraldton store wasn't exactly warmly received.