Within Single Residence, Suburban and Rural Districts, the following
uses may be authorized on special permit from the Board of Appeals:
4211.
One additional dwelling unit within a building or structure,
provided:
a. That the building or structure in which the additional unit is located
is occupied by the owner;
b. That the additional unit is occupied only by a person or persons
related to the owner;
c. That the additional unit shares a common entrance in the existing
structure.
4212.
Conversion of a single residence which was in existence on the
date this Zoning Bylaw became effective, March 13, 1933, into a residence
for two families.
4213.
Conversion of a dwelling or building accessory thereto, or both,
into a building or buildings containing in the aggregate as many dwelling
units as could be obtained if the dwelling and building accessory
thereto, if any, were to be razed, the lot subdivided into as many
lots as the Zoning Bylaw permits and as many dwelling units as permitted
by the Zoning Bylaw were then constructed; provided that the dwelling
and the building accessory thereto, if any, were in existence on the
date this Zoning Bylaw became effective (March 13, 1933) and that
a permanent preservation restriction under MGL c. 184, §§ 31
through 33, is provided, assuring the future integrity of the building
exterior and the grounds.
In Single Residence, Rural and Suburban Districts, and Business
District C, a special permit from the Select Board may authorize conversion
to multifamily dwelling use of a building then or formerly in municipal
use, provided that additions or extensions increase lot coverage by
not more than 10% of lot area. Lot area plus contiguous land dedicated
to public recreation or conservation use shall equal at least 2,000
square feet per dwelling unit; the provisions of this section shall
prevail over the provisions and/or limitations of Subsection 2320,
including without limitation Subsections 2321 and 2326.
Apartments in excess of two dwelling units, including services
related thereto, over nonresidential establishments may be authorized
in Business Districts B and C by special permit from the Board of
Appeals, provided that no dwelling unit shall be located below the
second floor, in accordance with the following:
4231.
Number of bedrooms shall not exceed 16 per acre. For the purposes
of this calculation, a studio apartment shall be considered a one-bedroom
apartment.
4232.
Usable open space shall be provided on the same site to at least
the following amounts per unit:
|
Studio apartment
|
400 square feet
|
|
One-bedroom apartment
|
600 square feet
|
|
Two-bedroom apartments
|
800 square feet
|
|
Three-bedroom apartment or more
|
1,200 square feet
|
4233.
Usable open space shall be on substantially level ground and
open to the sky; maintained in grass or landscaped as recreational
or park area, provided that no more than 25% of the required minimum
usable open space is covered with impervious materials; not less than
20 feet in any dimension, exclusive of required setbacks; accessible
to all residents on the site without crossing parking areas or driveways.
4234.
Notwithstanding the provisions of Subsection 3112, all parking
required for residences shall be located on the same lot and shall
be reserved for the residents.
4235.
On a lot which is used for residence as well as business, the
landscaping requirements of Subsection 3117 shall apply to side and
rear lot lines, except where driveways or parking areas are shared
with an adjoining lot. A strip of lawn or natural vegetation at least
20 feet wide may be substituted in place of the screening otherwise
required.
4236.
Site plan approval shall be required in all cases pursuant to
Subsection 6320. In addition to the reviews provided in said Subsection
6320, the Board of Appeals shall also consider suitability and safety
of ways for residents to their apartments, parking areas and usable
open space; and the compatibility of the proposed nonresidential uses
with residential uses with respect to safety from fire or other hazards
and to protection from noise, litter or other nuisance.