From Wikipedia (not the most definitive source, but I was in a hurry)... "She served as a council-appointed board member of Kensington and Chelsea TMO, the tenant management organisation which manages the council's housing stock, from 27 June 2008 to 31 October 2012.[10][11][12] In 2013/4 she was a member of the council's Housing and Property Scrutiny Committee.[13][14] She has been a member of the council's Planning Applications Committee since May 2013, and a member of the main Planning Committee since June 2014.[15] She is a member of the London Fire and Emergency Planning Authority.[16]"...
Based on these appointments and dates, I would be surprised if the Grenfell job approval didn't have her name all over it.