Zoning of the Plan d’Occupation des Sols de Gellainville (28177), in Eure-et-Loir

The Urban Planning Code defines four types of areas regulated in the local planning plan (R.123-5 to 8): urban areas (U), areas to be urbanised (AU), agricultural areas (A) and natural and forest areas (N). These areas shall be demarcated on one or more graphic documents. A regulation is attached to each area. The by-law may lay down different rules, depending on whether the purpose of the construction relates to housing, hotel accommodation, offices, commerce, crafts, industry, agricultural or forestry operations or warehouse functions. These categories are restrictive (Art. R.123-9). Areas already urbanised are classified as U areas where existing or under construction public facilities have sufficient capacity to serve the buildings to be installed. The areas of a natural nature of the municipality intended to be opened for urbanisation depending on whether or not the existing facilities on the periphery are sufficient to serve the buildings to be installed may be classified as AU zones. There are two types of AU zone: “constructible” and “inconstructible” AU zones. Areas A may be classified as areas of the municipality, whether or not equipped, to be protected due to the agronomic, organic or economic potential of agricultural land. Areas of the municipality equipped or not may be classified as N zones, to be protected either by reason of the quality of the sites, natural habitats, landscapes and their interest, in particular from the aesthetic, historical or ecological point of view, the existence of forestry or their nature as natural areas. — Within zones N, may be demarcated: areas within which the right to be built can be transferred (transfer of COS), — areas of limited size and capacity where construction is possible under the condition of location and density.《城市规划法典》（Urban Planning Code）对本地规划方案中受规制的四类区域作出了规定（条款编号R.123-5至R.123-8）：城市建成区（U）、待城市化区域（AU）、农业区域（A）以及自然与林业区域（N）。上述四类区域须在一份或多份图件中进行划定。每一类区域均附有对应的规制条款。根据建设用途的不同——包括住宅、酒店住宿、办公、商业、手工业、工业、农林作业或仓储功能——地方法规可设定差异化的规则。上述区域分类具有限制性（详见条款R.123-9）。已完成城市化的区域将被归类为U类区域，条件为现有或在建的公共设施具备足够承载力，可为拟入驻的建筑物提供服务。市域范围内拟开放用于城市化开发的自然属性区域，可根据其外围现有公共设施是否具备足够承载力以服务拟入驻建筑物，被归类为AU类区域。AU类区域分为两类：可建设AU区与不可建设AU区。无论是否配套相关设施，A类区域均可被认定为市域受保护区域，保护依据为农用地所具备的农艺特性、生态有机属性与经济潜力。市域范围内无论是否配套设施的区域，均可被归类为N类区域，其保护理由包括场地品质、自然栖息地、景观风貌及其保护价值——尤其是从美学、历史或生态视角出发，以及区域具备林业属性或本身属于自然区域。——在N类区域内，可进一步划定两类子区域：其一为建设权可转让的区域（COS转让），其二为规模与承载力受限、仅在符合选址与密度要求的前提下方可开展建设的区域。