Subdivisions in Connecticut are authorized under CGS 8-25 as a function of municipal planning commissions. One of the lesser known “shalls” in this section is that subdivision regulations “shall also encourage energy-efficient patterns of development and land use,” renewable energy, and energy conservation. But what does an energy-efficient pattern of development look like, and how can regulations be written to require it? The Town of Watertown has expertly applied the powers granted in CGS 8-25(b) in reasonable, well-written, eco-friendly regulations.
Watertown’s Subdivision Regulations deal with “Energy, Efficiency, and Conservation” in Section 5.15.
- Solar access: Streets, lot lines, and buildings should be oriented to allow for maximum solar access, with permissible variations of up to 15 degrees. The regulations also direct the Commission to utilize a setback overlay and evaluation procedure to determine if solar access is adequate.
- Wind barriers: Existing vegetation and topography that provide a wind barrier should not be disturbed by construction. The addition of manmade wind barriers is encouraged.
- Street trees: Street trees should not obstruct solar access.
- Open space: Public areas should be laid out as not to preclude “future use of community energy systems.” The design of these areas should also not take away solar and wind access from other lots.
Watertown’s exemplary subdivision regulations demonstrate that renewable energy and efficiency considerations – or even requirements – can be a fundamental piece of subdivision planning strategies.
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The “Sustainability Spotlight” provides readers with ideas on how to incorporate sustainability into your land use regulations.
Please send any questions or suggestions to Christine O’Neill, Environmental Planner II at coneill@nvcogct.gov.
