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Sec. 2. Low-density residential district (LDR). Statement of purpose. The purpose of the low-density residential district is to provide areas within the city for the development of single-family homes on individual residential lots and well planned mixed residential developments in environments which protect them from the adverse impacts of incompatible land uses. The standards of the district provide for residential development of up to six units per acre with the availability of public sewerage. Applicability. The standards of the low-density residential district shall apply to all land shown on the "Official Zoning Map of the City of Lewiston" as being located within a low-density residential district. Permitted uses. In a low-density residential district, any new building or structure which is constructed, any existing building or structure or part thereof which is used, altered or enlarged and any parcel of land, whether in whole or in part, may be used for one or more of the following: Single-family detached dwellings on individual residential lots; Mixed residential developments in accordance with the standards of article XIII; In-law apartments in accordance with the standards of article XII; Religious facilities including churches, synagogues and other houses of worship, rectories and parsonages, and church-affiliated community purpose facilities; Forest management and timber harvest activities in accordance with the standards of article XII; Cemeteries; Family day care homes; Home occupations; Accessory buildings, structures and uses; (10) Single-family cluster developments; (11) Small day care facilities accessory to public schools, religious facilities, multifamily or mixed residential developments, and mobile home parks. Conditional uses. In a low-density residential district, any new building or structure which is constructed, any existing building or structure or part thereof which is used, altered or enlarged and any parcel of land, whether in whole or in part, may be used for one or more of the following uses only after the issuance of a conditional use permit in accordance with article X of this Code: Reservoirs, pumping stations, standpipes or other water supply uses involving facilities located on or above the ground surface; Transformer stations, high voltage power transmission lines, substations, telephone exchanges, microwave towers or other public utility or communications use; ---PAGE BREAK--- Public or private facilities for nonintensive outdoor recreation; Municipal buildings and facilities; Day care centers accessory to public schools, religious facilities, multifamily or mixed residential developments and mobile [home] parks. Space and bulk standards. Any building, structure or use of land or the creation of new lots within the low-density residential district shall conform with the following requirements: TABLE INSET: ! ! # $ ! & ) $ $ $ # + $ # # $ $ $ # $ + ---PAGE BREAK--- # , $ # $ # , $ # " , # " . / 0 1 Additional standards. Any building, structure or use of land within the low-density residential district shall comply with the following standards: The general standards of performance of article XII shall apply. Lots created as part of single-family cluster developments shall meet the minimum lot size, frontage and setback requirements set forth in article XIII. Any front, side or rear yard of a mixed residential development shall maintain a 35-foot wide buffer strip in the front yard and a 25-foot wide buffer strip in the side and rear yards, all in accordance with the buffer standards of article XIII. Modifications (ie. relaxation of standards) of setbacks, yards, maximum lot coverage ratios, maximum impervious surface ratios, minimum open space ratios, and maximum building height as contained in subsection may be granted by the board of appeals, planning board, staff review committee and the code enforcement official pursuant to articles V, VII, VIII, IX, and XIII of this Code. (Ord. No. 89-3, 4-7-89; Ord. No. 89-11, 9-15-89; Ord. No. 90-3, 5-17-90; Ord. No. 90-10, 10-4-90; Ord. No. 91-8, 10-3-91; Ord. No. 92-27, 11-19-92; Ord. No. 96-6, 7-4-96; Ord. No. 97-7, 9-11-97; Ord. No. 98-6, 7-2-98; Ord. No. 00-27, 1-11-01)