Six-step design process. At the time of the application for an OSD special permit, applicants are required to demonstrate to the Planning Board that the following design process was performed with participation by a registered landscape architect and was considered in determining the layout of proposed streets, dwellings, lots and open space.
Step one: Identifying conservation areas. Identify preservation land by two steps. First, primary conservation areas (such as wetlands, riverfront areas, and floodplains regulated by state or federal law) and secondary conservation areas (including unprotected elements of the natural landscape such as steep slopes, mature woodlands, prime farmland, meadows, wildlife habitats and cultural features such as historic and archeological sites and scenic views) shall be identified and delineated. Second, the potentially developable area shall be identified and delineated. To the maximum extent feasible, the potentially developable area shall consist of land outside identified primary and secondary conservation areas.
Step two: Siting dwellings. Locate the approximate sites of individual dwelling structures within the potentially developable area and include the delineation of private yards and shared amenities, so as to reflect an integrated community, with emphasis on consistency with the Town's historical development patterns. The number of units enjoying the amenities of the development should be maximized.
Step three: Aligning the streets and walks. Align streets in order to access the dwellings. Additionally, new walks or trails should be laid out where appropriate to create internal and external connections to existing or potential future streets, sidewalks, and trails.
Step four: Lot lines. Draw in the lot lines.
Step five: Applicants shall provide building plans, landscape plans showing fences and walls, plantings, and existing and proposed trees, and provide sample building materials and color samples. The Planning Board may request models and renderings, rendered elevations of all buildings and site amenities. At the time final lot lines are proposed, the applicant shall submit draft covenants for drainage maintenance, open space preservation and maintenance, and any other covenants and easements that may be proposed. Subsequently, the applicant may submit a draft Planning Board decision with conditions to implement the project as proposed.
Step six: Prior to cutting trees on the site, blasting, grading, or changing ground elevations and prior to submitting plans for any building/construction permits, including foundations and installation of drainage or utilities, the applicant shall submit all permit plans to the Planning Board for review and approval. Such prior approval by the Planning Board shall be documented on every individual permit plan set submitted to the Inspectional Services Department and Department of Public Works. For verification, the Planning Board shall designate a subcommittee to review and approve plans submitted for permits. Subsequent to obtaining any permits, the Planning Board may, at the applicant's expense, retain a professional third-party monitoring agent to verify the project is constructed as approved.