If we are talking about a section 108 search of the strata records then see https://www.legislation.nsw.gov.au/maintop/view/inforce/subordleg+492+2010+cd+0+N
into your browser.
The current rate appears to be $30 for the first hour and then $15 for every additional half hour; or part there of.
Current version for 6 January 2012 to date.