When an application is filed within the required 30 days, the applicants shall have 60 days after filing the application, or any further time that the board allows, within which to do the following:
(a) Present to the board plans and specifications.
(b) Obtain the board’s approval of plans and specifications.
(c) Commence the work of repair, construction or completion.
(Added by Stats. 1943, Ch. 369.)