(a) Historic Structures and Objects. No person shall make or cause any material change to the exterior of an historical structure or object, demolish any portion of the exterior of an historical structure or object unless such action is in conformance with a valid Historic Resource Preservation Plan approved by the Historic Resources Commission. In addition to these requirements, no relocation or demolition without reconstruction of an entire historic structure shall occur unless an Historical Documentation Report is submitted to and approved by the Historic Resources Commission concurrent with the review of the Historic Resource Preservation Plan.
(b) Historic Properties. No person shall make or cause on an historical property a material change to any structure on the property, or construct any new structure including any fence or deck unless such action is in conformance with a valid Historic Resource Preservation Plan approved by the Historic Resources Commission. Demolition or removal of non-historic structures on historic properties are exempt from the provisions of this Chapter.
(c) Historic Sites. For projects which will disturb or potentially disturb the ground of a designated historic site, an Historical Archaeologic Report shall be prepared and submitted with any applications for permits to develop the project. Permit applications shall be deemed incomplete until the Historic Archaeological Report is prepared, submitted and accepted by the Planning Department. Any subsequent environmental review and permit approval of the project shall incorporate all appropriate recom-mendations contained in the Historic Archaeological Report for protection of the archaeological resources of the site.
(d) Historic Districts. No person shall make or cause in an historical district any material change to the exterior of any structure, or construct any new structure including fences and decks, or relocate or demolish any designated contributing historic structures or historic objects unless such action is in conformance with a valid Historic Resource Preservation Plan approved by the Historic Resources Commission.
Demolition and relocation of non-contributing structures located in historic districts are exempt from the provisions of this Chapter. Material changes to the exterior of all structures and the construction of new structures shall be compatible with the scale, building materials and general design of the historic district, reinforce the historic value and architectural theme of the historic district, and comply with the Historic Preservation guidelines of Sections 16.42.070(a) and (b) of this Chapter to the maximum extent feasible.
(e) Sign Approvals. Plans for all new signs and alterations to existing signs located on an historical structure, or located on an historical property, or located in an historical district, except for historic landmark plaques as approved by the Historic Resources Commission or changes in sign copy, shall be submitted to the Historic Resources Commission for review and recommendation regarding their compatibility with the design and historic characteristics of the structure, property or district. Subsequent permit approvals shall only allow signs conforming with the recommendation of the Historic Resources Commission in addition to all other County Code requirements and adopted sign design guidelines.
(f) Final Project Approval. When an Historical Resource Preservation Plan is required by this section, no final County approval shall be given to a Land Division, Development Permit, Building Permit, Demolition Permit, Land Clearing Permit or Grading Permit for a project affecting an historical structure, object, property, site or district, unless an Historical Resource Preservation Plan for the protection of the historic resource has been approved by the Historic Resources Commission, the project is in conformance with the approved plan, and development will commence prior to the expiration of the Historic Resources Commission approval. Final inspection clearance on project permits or improvement plans shall not be granted unless the completed project complies with all provisions of the Historic Resource Preservation Plan.