Before a building permit is issued for: (1) the erection, conversion, enlargement or reconstruction affecting the exterior of a building or structure; or (2) a permanent freestanding sign within the City of Manchester, the applicant shall submit plans to the Planning and Zoning Commission, except as otherwise provided, showing the floor elevation, floor plan and siting of each building as well as a description or drawing of the exterior material and colors, signs, type of garage, height and type of roof, number and size of windows, fences or landscaping. Additionally, for any planned development under Section
405.260,
405.270 or
405.285, at the time of application, the applicant shall submit a site plan under the procedures of Subsection
(D) of this Section
405.820. Architectural review shall not be required by the Commission for residential buildings except for: (1) new construction; (2) additions that affect the front elevation of the structure as determined by the Director or his/her designee; and (3) additions that increase the floor area by fifty percent (50%) or more. The Commission shall review such plans according to the standards and requirements set out below. The Commission may accept, reject, require modifications of such plans, or postpone its review and request further information, studies, engineering opinions or other documentation that the Commission determines will assist in its decision. Any approval or conditional approval of such plans by the Commission shall be effective, all circumstances remaining constant, as determined in the sole and absolute discretion of the Commission for a period of one (1) year from such approval or conditional approval, following which such plans shall be resubmitted to the Commission for its further review and approval or conditional approval. After one (1) year, unless a building permit is obtained, and substantial construction is commenced and all additional building permits necessary to complete the project as approved in the final approved site plan are obtained in a timely fashion, the site plan approval shall expire, and, in the case of a planned development, zoning shall revert to the zoning prior to approval. The term "circumstances," referred to herein, includes, but is not limited to, traffic volumes, sanitary sewage and stormwater runoff, ingress and egress, traffic signalization or control, environmental considerations, access to utilities, safety and health considerations, and fire safety considerations.