1. A site plan shall become effective upon certification of approval by the City Council.
2. The City Council approval of any site plan required by this chapter shall remain valid for one (1) year allowing one (1) year extension with approval of City Council upon recommendation of the Commission after the date of approval, after which time the site plan shall be deemed null and void if the development has not been established or actual construction commenced. For the purpose of this chapter "actual construction" shall mean that the permanent placement of construction materials has started and is proceeding without undue delay. Preparation of plans, securing financial arrangements, issuance of building permits, letting of contracts, grading of property, or stockpiling of materials on the site shall not constitute actual construction.