The Perth Hills Planning Bill was defeated in the Upper House of the West Australian Parliament by a vote of 4 for and 28 against.  You can read the debate at:

  http://www.parliament.wa.gov.au/Hansard/hansard.nsf/0/1b3b2000e5a8c98648257ac90022f807/$FILE/C38%20S1%2020121129%20p9046a-9046a.pdf

Here's who voted for the Bill: Hon Robin Chapple, Hon Lynn MacLaren, Hon Giz Watson, Hon Alison Xamon; all WA Greens. 

Here's who voted against the Bill: Hon Liz Behjat, Hon Kate Doust, Hon Nigel Hallett, Hon Simon
O’Brien, Hon Matt Benson-Lidholm, Hon Wendy Duncan, Hon Alyssa Hayden, Hon Ljiljanna
Ravlich, Hon Helen Bullock, Hon Phil Edman, Hon Col Holt, Hon Linda Savage, Hon Jim Chown, Hon Brian Ellis, Hon Robyn McSweeney, Hon Sally Talbot, Hon Peter Collier, Hon Jon Ford, Hon Michael Mischin, Hon Ken Travers,
Hon Mia Davies, Hon Philip Gardiner, Hon Norman Moore, Hon Max Trenorden, Hon Ed Dermer, Hon Nick Goiran Hon Helen Morton, Hon Ken Baston

You, too, have an opportunity to vote at the State elections next March, on the people who voted against the Bill.