Sec. 4-12. Certificate of appropriateness—Required before issuance
of building permit; exceptions.
No building permit under the provisions of the Building
Code shall hereafter be issued for the erection, reconstruction,
alteration or restoration of the exterior of any building
or structure, or part thereof, within the restricted design district,
unless and until the applicant shall have secured a certificate
of appropriateness from the board of architectural
review; provided, that this requirement shall not apply when
the work proposed is only to maintain or repair part of a
building, such as a roof, porch, cornice, etc., and when no
change of design or general outside appearance of such building
is involved. (Code 1959, § 4-12.)