11 Mr Cottom, solicitor for the Council, has drawn my attention to the point that the site is one that is highly constrained by its steep slope and by its ecology. The amendments to the plans result in changes being made to the trees that are required to be retained and removed in the proposed development. The Council submits that this requires further assessment by an ecologist. Further, the changes to the course of the roadway and the entrance to the roadway, together with the removal of the retaining wall and its replacement with sheeting, will require assessment by landscape architect and/or a civil engineer. The deletion of the retaining wall may create an additional contention in the proceedings. It is the Council's position, therefore, that significant time and cost has been incurred as a result of the original application and will be occurred in dealing with the amendments for which I granted leave on 11 May 2009.