Any person, before starting development of any new land use activity at any location within the town where this chapter requires approval of site plans, shall submit a site plan, together with any supporting data for review and approval, in accordance with the standards and procedures set forth in this chapter. No permit or certificate of occupancy shall be issued by the Land Use Inspector, except upon authorization by and in conformity with an approved site plan.
A. 
All new land use activities within the town shall require site plan review and approval before being undertaken, except the following:
(1) 
Landscaping or grading which is not intended to be used in connection with a land use reviewable under the provisions of this chapter.
(2) 
Ordinary repair or maintenance of existing structures or uses.
(3) 
Exterior alterations or additions to existing structures which would not increase the square footage of the existing structure by more than twenty-five percent (25%) or having a cost value of less than twenty-five thousand dollars ($25,000.).
(4) 
Interior alterations having a cost value of less than twenty-five thousand dollars ($25,000.).
(5) 
Nonstructural agricultural or gardening uses.
(6) 
Agricultural structures.
(7) 
Signs under ten (10) square feet.
B. 
Any person uncertain of the applicability of this chapter to a given land activity may apply, in writing, to the Planning Board for a written jurisdictional determination.
This chapter does not apply to uses and structures which are lawfully in existence as of the date this chapter becomes effective. Any use which would otherwise be subject to this chapter that has been discontinued for a period of one (1) year or more shall be subject to review pursuant to the terms of this chapter before such use is resumed. Any use or structure shall be considered to be in existence, provided that the same has been commenced as of the effective date of this chapter and fully constructed and completed within one (1) year from the effective date of this chapter.