The City Council may from time to time on its
own motion or on petition or other application, after public notice
and hearing, amend, supplement or change the regulations and districts
herein established and adopt rules and regulations for the purpose
of interpreting and carrying the chapter into effect.
When owners of more than 50% of the frontage
within a district or part of district comprising not less than one
block shall present to the City Council a petition or other application,
duly signed, requesting the change, relocation or revision of said
district or a part thereof, the City Council shall act upon said request
within 60 days after the filing of said petition or other application
with the City Clerk. Said petition shall be accompanied by a map showing
the area for which the change of district is asked and all immediately
abutting property and uses thereof, and, further, shall be accompanied
by a statement setting forth the grounds or reasons for the proposed
change.
All such proposed changes of this chapter or
relocation of districts or part of districts shall be referred by
the City Council to the City Planning Board for approval, disapproval
or suggestions. Failure of the Planning Board to approve or disapprove
any proposed change within 45 days from the date of its reference
to the Board shall have the same effect as approval thereof.
In the event of unfavorable report from the
Planning Board or in case of a protest against such proposed change
signed by the owners of 20% or more either of the area of the lots
or land included in such proposed change or of the lots or land in
the rear thereof extending 100 feet therefrom or of the lots or land
on either side thereof or directly opposite thereto extending 100
feet therefrom (exclusive of street space), such change shall not
become effective except by the favorable vote of 2/3 of all members
of the City Council.