[Amended 10-23-2003; 10-22-2009 STM by Art. 12; 10-27-2016 STM by Art. 19; 11-14-2024 STM by Art. 20]
A dwelling or building or structure hereafter erected in any district shall be located on a lot having not less than the minimum requirements set forth in the table in § 4.2, and no more than one dwelling shall be built upon any such lot, except as authorized by these bylaws or otherwise by state law. No existing lot shall be changed as to size or shape so as to result in the violation of the requirements set forth in § 4.2.
[Amended 1992; 10-23-2003; 10-27-2016 STM by Art. 19]
Table 4
It should be noted that additional dimensional and density regulations may apply as required in other applicable Overlay District, Special Permit and/or General Regulation sections of this Bylaw.
Minimum Lot Dimensions
Minimum Yard Dimensions
Maximum Height of Buildings
Maximum Coverage of Building Including Accessory Buildings
Districts
Area
(square feet)
Frontage
(feet)
Depth
(feet)
Width
(feet)
Front
(feet)
Side
(feet)
Rear
(feet)
Number of Stories
Feet
Residential
22,500
150
150
150
50
15
40
2 1/2
35
30%
Agricultural-Residential (Ag-Res)
30,000
175
150
150
50
15
40
2 1/2
35
20%
Limited Business and Local Business
30,000
175
150
150
50
15
40
2 1/2
35
30%
Business
30,000
175
150
150
50
15 (50 when adjacent to Ag-Res District)
40 (50 when adjacent to Ag-Res District)
3
42
30%
Aquifer Protection
40,000
200
150
150
50
Per the Underlying District
Per the Underlying District
20%
Industrial
62,500
250
250
250
50
40 (50 when adjacent to Ag-Res District)
40 (50 when adjacent to Ag-Res District)
4
50
30%
Floodplain
Per the Underlying District - New Residential Construction Not Permitted
[Amended March 1977; 1992; May 1998; 5-5-2011 ATM by Art. 18; 10-27-2016 STM by Art. 19; 5-22-2021 ATM by Art. 3]
See § 1.2. In addition to the regulations contained in § 4.1 above, the following regulations shall apply.
4.3.1. 
A lot or parcel of land having an area or a frontage of lesser amounts required by this table may be considered coming within the area and frontage requirement of this section, provided such lot or parcel of land shown on a plan or described in a deed only recorded or registered at the time of the adoption of this bylaw and did not at the time of such adoption adjoin other land of the same owner available for use in connection with such lot or parcel.
4.3.2. 
Frontage is to be measured from the right-of-way line where a plan of the way is on file with the Registry of Deeds or, in the absence of such plan, from a line drawn 25 feet parallel to the center line of the traveled way. In case of corner lots, the front yard depth shall be observed from all bordering streets.
[Amended ]
4.3.3. 
The limitations on height of buildings shall not apply in any district to chimneys, cooling towers, elevator bulkheads, skylights, ventilators, electronic equipment, elevator shafts, other necessary appurtenances usually carried above the roof, and, if not used for human occupancy, towers, spires, or other ornamental features of buildings.
4.3.4. 
(Reserved)
4.3.5. 
(Reserved)
4.3.6. 
The minimum front yard dimensions shall not apply to signs, the location of which shall be governed by the sign section of this bylaw designated as Section VII.
4.3.7. 
Width is defined such that a square area 150 feet by 150 feet must be able to fit into the plan of a lot and at least one point of that square must lie on the frontage line. At no point, between the front lot line and the rear of the principal structure (said rear being the furthest point of the structure from the front lot line) located on the lot, shall the lot have a width less than the minimum lot width required, except that the Planning Board may (but is not required to) issue a special permit as provided in § 6.2.2. to permit lot width of no less than 75% of the minimum lot width required when, in its judgment, such action is in the public interest and not inconsistent with the intent of this Zoning Bylaw.