Comparative data on maximum allowable density and building height are analyzed in this document:
https://trusttheneighbors.files.wordpress.com/2016/03/heightanddensitymax_sw_saz.pdf

A map showing areas where current zoning is _unlawfully_ denser than plan designation, e.g., R-3 on LDR is available here:
https://trusttheneighbors.files.wordpress.com/2015/11/currentzoneversusplan.pdf

Other supporting evidence and analysis is available here:
http://trusttheneighbors.org/sw-saz-zone-change/

-- Paul