TOWN OF ROXBURY SUBDIVISION REGULATIONS 9.08 PLANNED UNIT DEVELOPMENT The standards and requirements of these regulations may be modified by the Board in the case of a plan and program for a new town, a complete community or a neighborhood unit which in the judgement of the Planning Board provides adequate public spaces and improvements for the circulation, recreation, light, air, and service needs of the tract when fully developed and populated and which also provides such covenants or other legal provisions as will assure conformity to and achievement of the plan. A.PURPOSE To further the public health, safety, morals and general welfare in an era of increasing urbanization and of growing demand for housing of all types and design; to encourage innovations in residential development and renewal so that the growing demands for housing may be met by greater variety in type, design and layout of dwellings and by the conservation and more efficient use of open space ancillary to said dwellings; to encourage a more efficient use of land and of public services, or private services in lieu of, and to reflect changes in the technology of land development so that resulting economies may ensure to the benefit of those who need homes; and, in aid of these purposes, to provide a procedure which can relate in type, design and layout of residential development to the particular site and the particular demand for housing at the time of development in a manner consistent with the preservation of the property values within established residential areas, and to insure that the increased flexibility of substantive regulations over land development authorized herein is subject to such administrative standards and procedures as shall encourage the disposition of proposals for land development without undue delay. B.PERMITTED USES - Dwelling units in detached, semi-detached or multi-storied structures or any combination thereof as permitted in the Zoning Ordinance. C.DENSITY - The Board, in accordance with the Zoning ordinance, may vary the density or intensity of land use, otherwise applicable to the land within the planned unit residential development in consideration of: 1. the amount location and use of common open space; 2. the location and physical characteristics of the site of proposed planned residential development and, 3. the location, design and type of dwelling units Except that the total density of land use within the planned unit development shall not exceed that which would be allowed by the Zoning Ordinance for the entire development, if all the land involved was to be developed in the conventional manner of dividing the entire tract into individual lots. PAGE In the case of a planned unit residential development proposed to be developed over a period of years, such standards may, to encourage the flexibility of housing density, design and type intended by this chapter, authorize a deviation in each section to be developed from the density, or intensity of use, established for the entire planned unit residential development. The Board may allow for a greater concentration of density, or intensity of land use, within some section or sections of development, whether it be earlier or later in the development than upon others. The approval by the Board of a greater concentration in any completed prior stage or by an appropriate reservation of common open space on the remaining land by a grant of easement or by covenant in favor of the municipality,provided that such reservation shall, as far as practicable, defer the precise location of such common open space until an application for final approval is filed, so that flexibility of development which is a prime objective of this chapter, can be maintained. D.COMMON OPEN SPACE - Any common open space resulting from the application of standards for density, or intensity of land use, set aside for the use and benefit of the residents in such development shall include provisions by which the amount and location of any common open space shall be determined and its improvement and maintenance for common open space use be secured, subject, however, to the following: 1. The municipality may, at any time and from time to time, accept the dedication of land or any interest therein for public use and maintenance, but shall not require as a condition of the approval of a planned unit residential development, that the land proposed be set aside for common open space be dedicated or made available for public use. If the Town does not wish to accept the common land, the landowner shall provide for and establish an organization for the ownership and maintenance of any common open space and such organization shall not be dissolved nor shall it dispose of any common open space, by sale or otherwise (except to the organization conceived and established to own and maintain the common open space.) 2. In the event the organization established to own and maintain common open space, or any successor organization, shall at any time after establishment of the planned unit residential development fail to maintain the common open space in reasonable order, meaning in a manner which is not detrimental to the health, safety welfare, and preservation of property values, and in accordance with the plan, the Town Attorney shall serve written notice upon such organization or upon the residents of the planned unit residential development setting forth the manner in which the organization has failed to maintain the common open space in such reasonable condition, and said notice shall include a demand that such deficiencies of maintenance be cured within thirty (30) days thereof. The residents of the planned unit development, upon receipt of said notice, may demand a hearing before Town Council to be held within (14) fourteen days of receipt of said notice to request modifications in the terms of the notice. At such hearing, the municipality may modify the terms of the original notice as to PAGE the deficiencies and may give an extension of time within said thirty (30) days or any extension thereof. The municipality, in order to preserve the taxable values of the properties within the planned unit development and to prevent the open space from becoming a public nuisance, may enter upon said common open space and maintain the same for a period of one (1) year. Said entry and maintenance shall not vest in the public any rights to use the common open space except when the same is voluntary dedicated to the public by the owners. Before the expiration of said year, the municipal authority shall, upon its initiative of upon the request of the organization theretofore responsible for the maintenance of the common open space, call a public hearing upon notice to the organization, or to the residents of the planned unit development, to be held by the municipal authority at which hearing such organization or the residents of the planned unit residential development shall show cause why such maintenance by the municipality shall not, at the election of the municipality, continue for a succeeding year. If the municipal authority shall determine that such organization is ready and able to maintain said common open space in reasonable condition, the municipality shall cease to maintain said common open space at the end of the said year. If the municipal authority shall determine such organization is not ready and able to maintain said common open space in a reasonable condition, the municipal authority may, in its discretion, continue to maintain said common open space during the next succeeding year and subject to a similar hearing and determination in each year afterward. The decision of the municipal authority in any such case shall constitute a final administrative decision subject to review in accordance with the provisions of RSA 31:77 3. The cost of such maintenance by the municipality shall be assessed ratably against the properties within the planned unit residential development that have a right of enjoyment of the common open space and shall become a lien on said properties in a total amount equal to 100% of the cost of said maintenance. The municipality, at the time of entering upon said common open space for the purpose of maintenance shall file a notice of such lien in the office of the Town Clerk upon properties affected by such a lien within the planned unit residential development. E.MINIMUM NUMBER OF ACRES - The Board shall not authorize a planned unit development that contains less than six (6) acres. This section 9.09 replaces the previous section 9.09 of the Roxbury Subdivision Regulations, in its entirety as of March 13, 1990. SECTION 9.09 SPECIAL FLOOD HAZARD AREAS All subdivision proposals and proposals for other development governed by these regulations having lands identified as Special Flood Hazard Areas in the "Flood Insurance Study for the Town of Roxbury, NH." together with the associated Flood Insurance Rate Maps and Flood Boundary and Floodway Maps of the Town of Roxbury, dates April 15, 1980, shall meet the following requirements: a. All requirements imposed by the Roxbury Floodplain Development Ordinance as approved March 13, 1990 as part of the Roxbury Zoning Ordinance. PAGE SECTION 10 - REQUIRED CONSTRUCTION IMPROVEMENTS 10.01 The developer shall be financially responsible to the Town for all clearing, grading, drainage, graveling, surface pavement, loaming and seeding within the rights-of-way, and for the installation of the required improvements. The following improvements shall be installed and constructed by the subdivider to the satisfaction of the engineer, and such improvements shall be made before submission of the final plat, or the subdivider, together with the final plat, shall file a bond sufficient to cover the cost of the improvements. a. Monuments constructed of concrete or stone at least four (4) inches on the top and at least (30) inches long shall be set at all block corners. Two bench marks of the same description as the monuments shall be set at opposite ends of the subdivision whose tops are at the even foot in reference to the USGS datum plane. b. Pipes shall be set at all lot corners. Concrete or granite bounds shall be set at all points of curvature and all points of tangent for surveying purposes. c. The roadway or traveled way exclusive of grass strip and sidewalk areas shall have a width of at least twenty (20) feet. d. The roadway shall be constructed in accordance with the following specifications: