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 The Last Green Valley



UMASS Extension

Land Use Regulations

Table of Contents

Introduction
Zoning Regulations Overview
          Single Use Districts
          Mixed Use Districts
          Special Districts
                    Overlay Districts
                    Floating Zones
          CT Statutory Requirements
          MA Statutory Requirements
Innovative Zoning Techniques
          Transfer of Development Rights
          Form-Based Zoning
          Streamlined Zoning
          Performance Zoning
Subdivision Regulations Overview
          In Connecticut 
                   
CT Statutory Requirements
          In Massachusetts
                    MA Statutory Requirements
          Conservation Subdivisions
QSHC Examples
Helpful Links
References

 

Subdivision Regulations Overview
“Subdivision is the legal process of dividing land into smaller units called lots for future sale and development.  The subdivision ordinance establishes standard for the division of lots….” (Daniels, Keller & Lapping, 1995).

In CT and MA, subdivision regulations vary greatly from town to town.  In the QSHC, most subdivision ordinances promote larger lot development from 1- 2 acres.  While this overall density may be necessary in areas without sewer and water infrastructure and poor soils, there are alternative approaches that allow for greater flexibility in subdivision design and do a far better job of protecting important natural features in the process (See Conservation Subdivisions below). 

Large Lots


In Connecticut, tools to protect natural resources are also available to communities through the traditional subdivision process.  In CT, Conservation Commissions are charged with inventorying and cataloguing natural resource information.  Conservation Commissions can also review subdivisions and make recommendations to Planning and/or Inland Wetlands Commissions to ensure that important natural features are protected and not adversely impacted by new development.  Today more communities in the QSHC are utilizing the knowledge and information available to them through their Conservation Commissions.  For more information see Conservation Commissions.

Another important tool in CT is the allowance for an Open Space Dedication or Fee in lieu of that open space dedication.  This tool gives CT towns an opportunity to protect those open spaces that are most important to them.  Once a town has developed an open space plan, it can request that priority resource areas (a percentage of the site area) are set aside through the development process or that funding is set aside (in lieu of) to protect priority resources in the future.  For more information see Conservation Commissions.

Connecticut Statutory Requirements
Chapter 126, Section 8-25, Subdivision of land, says that land to be subdivided shall:

“…be of such character that it can be used for building purposes without danger to health or the public safety, that proper provision shall be made for water, sewerage and drainage, including the upgrading of any downstream ditch, culvert or other drainage structure … and that the proposed streets are in harmony with existing or proposed principal thoroughfares shown in the plan of conservation and development as described in section 8-23, especially in regard to safe intersections with such thoroughfares, and so arranged and of such width, as to provide an adequate and convenient system for present and prospective traffic needs.  Such regulations shall also provide that the commission may require the provision of open spaces, parks and playgrounds when, and in places, deemed proper by the planning commission, which open spaces, parks and playgrounds shall be shown on the subdivision plan.  The commission may also prescribe the extent to which and the manner in which streets shall be graded and improved and public utilities and services provided.”

For the complete version of Chapter 126, Section 8-25 go to: http://www.cga.ct.gov/2005/pub/Chap126.htm#Sec8-25.htm  

In Massachusetts, the Subdivision Control Law (adopted in 1953) was designed to “provide suitable ways for access furnished with appropriate municipal utilities, and to secure sanitary conditions.”  The purpose was to establish the identity of new, individual building lots and to eliminate title defects.  In MA, the statute must be adopted by cities and towns to be in effect.  Planning Board regulations regulate the process, including such things as the presentation of plans, utility placement, limitations of one residential building per lot, and issues related to the grade of ways of subdivisions. 

Under the statute, a subdivision is a division of a tract of land into two or more lots, including re-subdivision, and relates specifically to the process itself.  Of note is the fact that excluded from this definition are lots that are being divided out and have frontage on a public way, a way maintained as a public way or a way in existence when the law first became effective in that town – lots now referred to as ANR (approval not required) or Form A lots.  Though ANR lots do not require subdivision approval, they much go through an initial process to get the ANR status. 

Regular non-residential subdivision planning begins with the submission of a preliminary plan (as of 1986) to both the planning board and the board of health.  Lots for a residential subdivision can avoid this step.  In reality, however, submitting a preliminary plan on even residential projects makes sense – it can be less costly to find out the planning board issues on a preliminary plan.  The approval of a preliminary plan and the submission of a definitive plan within seven (7) months “freezes” the zoning in effect with regard to the land and “freezes” the environmental code provisions in effect during the time the plan is being processed.  The definitive plan is a final working document and is recorded at the registry of deeds.

The planning board rules and regulations govern what is contained within this plan.  It may include such things as impact reports (schools, roads, utilities, environmental, etc.) and aesthetic aspects of the proposal. A planning board also retains the power to modify, amend or rescind its approval of a plan of subdivision if good reason is shown.

One of the most unusual aspects of Massachusetts subdivision law is the fact that the filing of a definitive plan “freezes” the zoning in effect at the time the plan is submitted to the planning board for a period of eight (8) years, starting as of the date of the endorsement of the plan.  

Massachusetts Statutory Requirement
Subdivision Control is Chapter 41, Sections 81K-81GG. http://www.mass.gov/legis/laws/mgl/gl-41-toc.htm

 

Conservation Subdivisions
This type of subdivision provides the same number of building lots or overall density that is allowed under zoning, but development is clustered more tightly together on the most suitable areas on a site, while preserving open space and sensitive natural features.

Conservation subdivisions are gaining popularity in CT and MA where they are being used as a tool to protect open space and make greenway connections through the development process.  This tool is just one more piece of the web of options available for protecting important natural features and the rural character of our communities. 

For information about conservation subdivision design see Community Planning Fact Sheet #3, Win-Win of Subdivision Design and Residential Design

Strathmore Farms


Benefits
of Conservation Subdivisions:

  • Maintains overall density and simultaneously protects open space
  • Reduces costs of infrastructure development & maintenance - because roads and other utilities don’t have to extend as far.  These cost savings can benefit municipalities, developers, homeowners & homeowner’s associations
  • Reduces impervious surface areas
  • Reduces grading costs
  • Enables large tree preservation
  • Can create a “neighborhood”
  • Proximity to protected open space can increase real estate value
  • Preserves resources & reduces fragmentation – maintains connectivity among wildlife habitats and corridors
  • Can protect:
    • Open Spaces
    • Natural Features
    • Water quality
    • Cultural features
    • Agricultural Resources
    • Views

A recent article concluded that “…conservation subdivisions – can provide higher profits to developers.  Lots in conservation subdivisions carry a price premium, are less expensive to build, and sell more quickly than lots in conventional subdivisions.” (Mohamed, 2006)  Costs are reduced in conservation subdivisions because the development is grouped together.  Infrastructure development and grading costs are limited because development doesn’t cover the entire site but is limited to a smaller development area.

Your town has a number of options for promoting conservation subdivisions.  These strategies must be clearly spelled out in your town’s land use regulations.

  • Mandatory - Some communities are requiring this type of development in designated areas or throughout their community. 
  • As-of-Right Use - Allow Conservation Subdivision as-of-right and require a special permit for a conventional subdivision.
  • Incentives - Allow for reduced road standards, bonus units or other flexibility in design to promote concept.   See Brunswick, Maine for a good example of using a density bonus.

Communities also take different approaches to how much open space is protected and how it is protected in a conservation subdivision.  Some communities require a certain percentage of the entire site to be protected as open space and others consider what works best on a case by case basis.  The extent to which development can be clustered will be based on whether or not infrastructure is available and if it is not (as is the case in most of the QSHC), it will depend on soils conditions.
 
Community wells and/or septic systems can provide more flexibility (than individual wells and septic systems) in laying out conservation subdivisions.  However, it is currently more time consuming to get such systems through the approval process and therefore, more costly.  (For recommendations to level the playing field between conservation and conventional subdivision development, see Livable Communities Toolkit, pg. 4-12 at http://www.crcog.org/publications/tcsp.html)

Options are also available for ownership and maintenance of a conservation subdivision’s open space.  This should be tied to the function of that open space, for example:

  • Homeowner’s Association - if use of the protected land is limited to subdivision residents only
  • Land Trust Ownership – if the primary purpose is natural resource protection - may or may not involve public use
  • Municipal Ownership - if public use/recreation is allowed.

Typical 100 Acre Site

Diagram1

Conventional Subdivision 2-acre lots

Diagram1

Conservation Subdivision 1-acre lots

Diagram1

 


Whoever owns the property, conservation easements should be utilized and held by a third party to ensure permanent protection of the open space. 

In the QSHC, the Town of Coventry has been promoting conservations subdivisions with a mandatory approach longer than anyone else.  More recently, the Towns of Woodstock, Scotland, Sprague and Ashford also adopted mandatory approaches.  Other communities have recently adopted conservation subdivisions approaches that are not mandatory, including the Town of Griswold (see below for links to regulations available online.)

Good design is critical to the success of a conservation subdivision and should be approached differently than the development of conventional subdivisions.  For more information about design see Community Planning Fact Sheet #3, Win-Win of Subdivision Design and the Residential Design page.