Before the construction, alteration, reconstruction,
moving or demolition of any structure within a designated historic
district and before any changes take place which would affect either
the exterior appearance of a structure or its related environment
within the voluntary designated historic district, a part of which
is visible or intended to be visible from a public way, the person
proposing to make changes shall file with the HDC an application for
an historic area work permit to build, alter, reconstruct, move or
demolish.