All extension fees can be found on the Department of Permitting Services website under "Fees and Taxes". Learn the basics of extension of time claims in construction projects, including key considerations and procedures for submitting a claim.The purpose of the following section is to insure that the highest standards of site, building, and landscape design are conscientiously met. To apply, fill out the appropriate application form below and submit it to Montgomery Planning, Development Applications and Regulatory Coordination section. The Zoning Code therefore allows the Planning Director to extend a review once, for 30 days. Resubmission of Application Due to. In anticipation of completing the development.