(1) The county planning commission or governing body may request redesign of all or any portion of a planned unit development submitted for approval, but any such request shall include specific, objective criteria. If the applicant redesigns the planned unit development in accordance with the request, no further redesign shall be required unless necessary to comply with a duly adopted county resolution, ordinance, or regulation.

(2) Nothing in this section shall be construed to preclude a county from taking any action permitted by law based on the consideration of the rights and privileges of the owners of subsurface mineral interests and their lessees pursuant to section 30-28-133 (10), C.R.S.

(3) Any required public hearing on any planned unit development shall be conducted expeditiously and concluded when all those present and wishing to testify have done so. No public hearing shall continue for more than forty days from the date of commencement without the written consent of the applicant. Any continuation of a public hearing shall be to a date certain.

(4) Unless withdrawn by the applicant, any planned unit development that has been neither approved, conditionally approved, nor denied within a time certain mutually agreed to by the county and the applicant at the time of filing shall be deemed approved. Such time period may be extended by the county to receive a recommendation from an agency to which a planned unit development was referred, but such extension shall not exceed thirty days unless the agency has notified the county that it will require additional time to complete its recommendation.

(5) Any requirement set forth in this section may be waived in writing by the applicant.