http://www.realcommercial.com.au/cgi-bin/rsearch?a=o&id=5692023&f=0&p=10&t=com&ty=&fmt=&header=&cc=&c=88241950&s=nsw&snf=as&tm=1284627054
But at least there is plenty of options if the current tennant pulls the pin :D
Perhaps also charge a toll to use the stairs?