Section Four: Dimensional Regulations

4.0 DIMENSIONAL REGULATIONS

TABLE OF CONTENTS:

4.1 TABLE OF DIMENSIONAL REQUIREMENTS
     4.1.1 Conformance
     4.1.2 Notes to Table
4.2 GENERAL REQUIREMENTS
     4.2.1 Urban Renewal Use
     4.2.2 Lot or Yard Areas
     4.2.3 Dwelling Unit Equivalents
     4.2.4 Building Bulk
     4.2.5 Lot Size, Area and Width
     4.2.6 Minimum Frontage and Width
     4.2.7 Open Space
     4.2.8 Fences and Hedges
4.3 YARDS
     4.3.1 Urban Renewal Use
     4.3.2 Minimum Requirements
     4.3.3 Appurtenances Projecting into Yards
     4.3.4 Certain Structures
     4.3.5 Front Yard Requirements for Lots Abutting More Than One Street
     4.3.6 Exceptions to Yard Regulations
4.4 SPECIAL REQUIREMENTS
     4.4.1 Urban Renewal Use
     4.4.2 Exceptions to Height Requirements
     4.4.3 Certain Districts Abutting Residence Districts

4.1 TABLE OF DIMENSIONAL REQUIREMENTS

4.1.1 Conformance. No building or structure shall be built nor shall any existing building or structure be enlarged which does not conform to the Table of Dimensional Requirements, except as may be otherwise provided.

 

table of dimensional requirements 

4.1.2 Notes to Table.

The Table of Dimensional Requirements does not contain any requirements for the Open Space, Planned Unit Development, Planned Unit Development 1, and Downtown Districts.

See Section 8.0 for these requirements.

1. In Residence A Districts buildings shall be set back so as to conform to the average alignment of dwellings already erected on the same side of the street within three hundred feet on each side of the lot, except that no building shall be set back less than twenty-five feet and no building shall be set back more than fifty-five feet.

2. Multifamily residence and mixed use of a building are permitted within a Business A and B District with the issuance of a special permit in accordance with the standards and procedures of Section 9.4 by the Zoning Board of Appeals. Residential buildings and uses within Business A Districts obtaining special permit, as provided herein, shall conform to all requirements of Residential B Districts. Residential buildings and uses
within Business B Districts obtaining special permits, as provided herein, shall conform to all the requirements of Residence C Districts. Multifamily residences and mixed use of a building are permitted within a Business C District by special permit from the Zoning Board of Appeals pursuant to Section 9.4; provided, that residential buildings and uses within a Business C District have a maximum FAR of three and five tenths, minimum lot size of forty-two thousand square feet, minimum lot area per dwelling unit of 500 sq. ft., minimum front, rear and side yards of one quarter the height of the building, minimum lot frontage and lot width of one hundred feet and minimum open space per dwelling unit of one hundred square feet. The site plans of building containing twelve units or more must be reviewed by the Planning Board.

3. Applies only to buildings hereafter constructed.

4. Notwithstanding the number of allowable stories, no residential building shall be more than sixty feet above the existing average grade; commercial buildings shall not be more than eighty feet above existing average grade. In no case shall any building exceed six stories. Any commercial building with residential housing will be subject to the six-story above-grade limitation. These amendments shall not apply to any buildings for which a
permit to construct a foundation was issued prior to January 1, 1987.

5. In a Residential A and B District, no residential building, notwithstanding the number of allowable stories, shall exceed thirty five (35) feet in height, measured from the highest point of the structure to the average existing finished grade at the footprint of the
building.

4.2 GENERAL REQUIREMENTS

4.2.1 Urban Renewal Use. An Urban Renewal Use is exempt from the provisions of Section 4.2.

4.2.2 Lot or Yard Areas. The lot or yard areas required for any new building or use may not include any part of a lot that is required by any other building or use to comply with any requirements of this Ordinance.

4.2.3 Dwelling Unit Equivalents. For residential uses permitted in Residence and Business Districts which are not divided into dwelling units, each one thousand square feet of gross floor area of the building shall be considered equivalent to one dwelling unit for the purposes of computing minimum lot area and requirements.

4.2.4 Building Bulk. For any building or group on a lot, the ratio of gross floor area to lot area shall not exceed the maximum specified in The Table of Dimensional Requirements.

4.2.5 Lot Size, Area and Width. Where minimum lot requirements are established in The Table of Dimensional Requirements, no building or use shall be erected or established on any lot of lesser size.

1. Multifamily Dwelling Units. Where a multifamily dwelling unit provides required parking pursuant to Section 5.1 within the principal structure or within an accessory parking structure, the lot area required for one dwelling unit may be reduced by ten percent.

4.2.6 Minimum Frontage and Width. Where a minimum lot frontage and lot width is specified in The Table of Dimensional Requirements, no principal structure shall be erected on any part of a lot which has a width less than is specified in said Table.

4.2.7 Open Space. Every lot in a Residence B and C Districts shall include usable open space having not less than the minimum area for each residence district as specified in The Table of Dimensional Requirements.

1. Minimum Dimension for Eligible Open Space. Open space shall be deemed eligible for calculating the open space requirement as specified above only if each dimension is at least five feet.

2. Patios and Balconies. The minimum requirement for open space per each dwelling unit in Residence C District having a patio or exterior balcony may be reduced by fifty
percent of the total area of such balcony, but in no case more than fifty square feet.

4.2.8 Fences and Hedges. Fences shall not be higher than six (6) feet. Fences and hedges shall not be higher than three (3) feet within ten (10) feet of the front lot line.

4.3 YARDS

4.3.1 Urban Renewal Use. An Urban Renewal Use is exempt from the provisions of Section 4.3.

4.3.2 Minimum Requirements. Where a minimum front, side and rear yard is specified in The Table of Dimensional Requirements, an open area of at least the specified dimensions shall be provided between the front, side and rear lot lines and the nearest point of any building or
structure except as may be permitted hereafter. Every part of the required yard shall be open to the sky and unobstructed except for the ordinary projection of the belt courses, sills, skylights and ornamental features projecting from the building not more than twelve inches, and or cornices and gutters projecting from the building not more than twenty four inches. Awnings, arbors, and fences shall not be considered obstructions when located within a required yard.

4.3.3 Appurtenances Projecting into Yards. Projecting eaves, chimneys, bay window, balconies, open fire escapes and like projections which do not project more than three feet, and unenclosed steps, unroofed porches and the like which do not project more than six feet beyond the line of the foundation wall and which are not over four feet above the average level of the adjoining ground, may extend into the minimum yard otherwise required for the district in which the structure is built.

4.3.4 Certain Structures. Swimming pools shall be considered structures for the purpose of compliance with minimum yard requirements and shall otherwise be regulated by the State Building Code. Laundry drying equipment shall not be allowed within any required yard or in front of the principal structure.

4.3.5 Front Yard Requirements for Lots Abutting More Than One Street. On lots abutting streets on more than one side, the front yard requirements of each of the abutting streets shall apply regardless of designated front lot lines. The remaining sides shall be subject to side yard
requirements.

4.3.6 Exceptions to Yard Regulations.

1. Residence A District. In a Residence A District, for lots less than seventy-five feet in width at the time of the enactment of the ordinance, the sum of the width of both side yards for a single family dwelling may be reduced by one foot for each five feet that the lot is less than seventy five feet in width. In no case shall any side yard be less than ten feet.

2. Residence B District. In a Residence B District, for a multifamily dwelling of between four units and sixteen units, no side yard shall be less than fifteen feet. For a
multifamily dwelling in excess of sixteen units, each side yard shall be not less than twenty feet.

3. Wall. Where a wall of a building is not parallel with its corresponding lot line, the average width or depth of any yard or setback shall not be less than the dimension
specified in the Table of Dimensional Requirements for the required width or depth; provided, that said yard or setback shall not be less at any point than three fourths the required width or depth.

4.4 SPECIAL REQUIREMENTS

4.4.1 Urban Renewal Use. An Urban Renewal Use is exempt from the provisions of Section 4.4.

4.4.2 Exceptions to Height Requirements. The provisions of this Ordinance governing the height of buildings and structures in all districts shall not apply to chimneys, water towers, air conditioning equipment, elevator bulkheads, skylights, ventilators and other necessary features appurtenant to buildings which are usually carried above roofs and are not used for human occupancy; provided, that these features are located or screened so as to be not visible from any point on grade within five hundred feet of a lot line of a building so equipped; nor to domes, towers, or spires above buildings if such features are not used for human occupancy; nor to
wireless or broadcasting towers and other like unenclosed structures; nor to accessory parking facilities completely located under ground level.

4.4.3 Certain Districts Abutting Residence Districts. In a Business or Industrial District which abuts a Residence District at a street lot line, the front yard of the Residence District shall apply to any building constructed within a distance of one hundred feet from the Residence District boundary line along said street lot line except where such building is separated by a
street from the Residence District.