The Commission made no decision on 8 March on a response to the petition. It agreed a response on 29 March.
It is not the practice to publish advice given to the Commission. However, as the hon. Member knows, in response to a request from the Administration Committee, Mr. Speaker wrote to the Chairman of that Committee in January explaining how the planned site had been selected from among the sites initially considered and setting out the estimated cost of converting each of the premises covered by the fully costed options appraisal.