A. 
Building. All buildings in any district shall meet the minimum requirements set forth in this article unless otherwise expressly provided by this bylaw or by MGL c. 40A, § 6.
B. 
Lot change. No lot shall be created nor shall an existing lot be changed in size or shape except through a public taking, or except where otherwise permitted herein, so as to result in violation of the requirements set forth in these intensity of use regulations.
A. 
The minimum size for lots in all districts shall be one acre.
B. 
No part or portion of any lot which is determined by the Conservation Commission to be a coastal or freshwater wetland, as defined by the Wetlands Protection Act (MGL c. 131, § 40) and the regulations promulgated thereunder (310 CMR 10.00), shall be used in determining minimum lot size as required herein, except that this subsection shall not apply to any lot lawfully laid out by plan or deed duly recorded, as defined in MGL c. 41, § 81L, prior to the effective date of this subsection, to any lot shown on a plan endorsed, prior to the effective date of this subsection, with the words, "Approval under the Subdivision Control Law not required" or words of similar import, pursuant to MGL c. 41, § 81P, or to any lot shown on a definitive plan endorsed with the words "Approved under the Subdivision Control Law" or words of similar import, pursuant to MGL c. 41, § 81U, which complied at the time of such recording or endorsement, whichever is earlier, with all of the minimum area requirements set forth in the Zoning Bylaw, except for this subsection; provided, however, that this subsection shall apply to any subdivision under the Subdivision Control Law, aforesaid, submitted to the Planning Board on or after the effective date of this subsection.
C. 
Stormwater management system. No part or portion of any lot which contains any element of a stormwater management system, as defined under § 201-1.2 of this Zoning Bylaw, shall be used toward calculating the minimum lot area required under Subsection A. This subsection shall not apply to any of the following:
[5-13-2002 ATM; amended 5-14-2007 ATM, Art. 17]
(1) 
A building lot lawfully laid out by plan or deed and duly recorded prior to the adoption of the Town's Zoning Bylaw;
(2) 
A building lot for single- or two-family residential use that is eligible for protection from zoning changes that increase lot area requirements under MGL c. 40A, § 6, on the effective date of this subsection, provided that the lot complied with all applicable lot area requirements at the time of its creation;
(3) 
A building lot that is shown on a plan that was duly endorsed as "Approval Not Required" under MGL c. 41, §§ 81L and 81P, prior to the effective date of this subsection, in which case the predecessor requirements of this subsection shall apply; or
(4) 
A building lot shown on a definitive subdivision plan duly endorsed by the Planning Board with the words "Approved under the Subdivision Control Law," or words of similar import, pursuant to MGL c. 41, § 81U, prior to the effective date of this subsection and in which case the applicable predecessor requirements of this subsection shall apply.
[Amended 5-6-2024 ATM by Art. 44]
A. 
The minimum street frontage shall be 80 feet for all lots in all districts, Street frontage shall be measured at the street line and shall be continuous and uninterrupted.
B. 
The minimum lot width shall be 150 feet in all districts, except in Business Districts A and B, where the minimum lot width shall be 125 feet. Lot width shall be measured through all parts of a primary building and shall be measured parallel to street frontage.
C. 
The minimum straight line distance between any two points on nonintersecting lot lines shall be 40 feet.
D. 
No dwelling may be erected or placed on a lot unless it is located within a circle which has a diameter of at least 150 feet. The circle shall be located within the boundaries of the lot and shall be located entirely on upland.
[5-10-2011 ATM; 5-6-2019 ATM, Art. 30; 5-8-2023 ATM by Art. 42; 5-6-2024 ATM by Art. 44; 5-5-2025 ATM by Art. 37]
A. 
Front yard.
(1) 
No building and/or structure shall be erected, placed or added so as to extend within the following required front yards:
Measured from Front Property Line
Residential A
50 feet
Residential B
35 feet
Business A
15 feet1
Business B-1 to B-8, C-1 to C-3
50 feet
1
Parking areas are prohibited within the front yard setbacks.
(2) 
However, no required yard shall exceed the average yards provided on lots abutting on either side, a vacant lot to be considered as if occupied by a building and/or structure at the minimum yard setback.
(3) 
The front yard setback in each district shall apply to any boundaries of lots which abut and run with a street or way.
B. 
Side and rear yards.
(1) 
In Residential Districts A and B, any structure, as defined under § 201-1.2, shall maintain a minimum setback of 20 feet from any side or rear line. However, a structure that has existed since July 1955, may have an addition to it erected or placed that is located less than 20 feet, but shall be a minimum of 10 feet, from a sideline. Furthermore, in the Residential District B, where abutting the Business District B-5 at the westerly boundary (measuring 950.80 feet), a structure shall maintain a minimum setback of 25 feet. Furthermore, in the Residential Districts A and B, any small detached accessory structure, as defined under § 201-1.2, shall be required to maintain a minimum setback of five feet from any adjacent boundary line.
(2) 
In business districts, no building and/or structure shall be erected, placed or added to within 10 feet of the side line or 20 feet of the rear line of any lot. In any business district contiguous to a residential district, no building and/or structure shall be erected, placed or added to unless such building and/or structure as erected, placed or added to is set back from the boundary line delineating said business district a distance equal to not less than 20% of the distance of the said boundary line from the way line of the public way from which the depth of such business district is measured; provided, however, that such setback shall not be required to be more than 100 feet. For purposes of this subsection, Business Districts A and B shall not be considered contiguous to any residential district if the business district and the residential district are separated by a public way.
(3) 
Excepted from this provision is Business District B-5 only. No building and/or structure in this district shall be erected, placed or added to unless such building and/or structure is set back from the easterly boundary line (measuring 950.80 feet) a distance of 25 feet.
A. 
No building and/or structure shall be erected or altered to exceed 2 1/2 stories in height, or 34 feet, in any residential district and Business Districts A and B or three stories, or 40 feet, in Business District C, nor shall any dwelling unit in a business district exceed 2 1/2 stories, or 34 feet, in height. Chimneys, elevators, poles, spires, tanks, towers and other projections not used for human occupancy may extend above the building and/or structure height limits by a maximum of 10 feet.
B. 
Poles, tanks, towers and other projections not attached to a building and/or structure shall not exceed the maximum allowed building and/or structure height unless approved by a special permit.
[Added 5-6-2024 ATM by Art. 43]
A parcel of land shall be considered to be a conforming, buildable lot for a single-family dwelling use (which shall include allowed accessory uses, including an accessory dwelling unit that complies with the Zoning Bylaw), even if the parcel does not have the full 80 feet of frontage required under § 201-9.3A, provided that the parcel shall:
A. 
Have a minimum of two acres of land, with at least one acre of upland;
B. 
Have a minimum of 40 feet of frontage, measured at the street line;
C. 
Have a minimum of 40 feet of lot width, measured at the street line and at all points between the street frontage and the closest portion of the single-family dwelling that faces the street frontage;
D. 
Take its physical access from the street frontage to the single-family dwelling, unless a lawful common driveway is in place; and
E. 
Conform to all of the requirements of § 201-9, except for the eighty-foot frontage requirement, and all other applicable zoning requirements, including stormwater control requirements. Demonstration of dimensional conformance shall be shown on a plan prepared and stamped by a licensed professional land surveyor and provided to the Building Department before any building permit issues and before an occupancy permit issues.