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607 <br />• REVISED Attachment A (Amendments to Section 3.2.3.3 and 3.2.3.4) <br />3.2.3.3 ADDITIONS TO EXISTING STRUCTURES. <br />3.2.3.3.1 The provisions of this section apply to any expansion or addition to an existing <br />conforming structure or building. This Ordinance classifies additions or expansions of existing structures <br />into three categories for the purposes of identifying what design standards shall apply. Expansion of <br />nonconforming structures is regulated in Article 13 of this Ordinance. <br />(a) Low Impact Additions /Expansions shall be defined as an addition that equates to less than 25% to the <br />total Gross Floor Area (GFA) of a site and requires less than 10 additional off - street parking spaces. <br />Low Impact (Type 1) expansions shall be exempt from most UDO design improvements, except: <br />• the building expansion shall conform to the LIDO standards for building setbacks <br />• new or expanded off - street parking areas shall be paved in accordance with Section 8.2.6.1 <br />• ffronting on a corridor as defined in .Section 10.7 of the UDO, the building(s) shall be retrofitted <br />to conform to all design standards of that section <br />• all outdoor solid waste disposal areas shall be screened in accordance with Section 10.1 of the <br />UDO <br />(b) Moderate Additions /Expansions shall be defined as: <br />• a proposed addition that is greater than 25% but less than 50% total of the total GFA of a site, <br />• and /or <br />• a proposed addition that requires 10 or more additional off - street parking spaces <br />Moderate Additions /Expansion shall provide the following site improvements from this Ordinance: <br />• Street Yard buffer as set forth in Section 7.7 of this Ordinance. The Street Yard buffer shall not <br />be required where existing buildings encroach into the area that would be required to provide <br />such a buffer. This exemption does not include existing parking areas. <br />• Parking area landscaping as set forth in Section 7.6 of this Ordinance. <br />• If abutting single- family residential developed properties, a Buffer (screening) Yard as set forth in <br />Section 7.5 of this Ordinance. <br />• Conformity to the standards for Article in terms of off - street parking and driveway design <br />• new or expanded off - street parking areas shall be paved in accordance with Section 8.2.6.1 <br />• ffroming on a corridor as defined in Section 10.7 of the UDO, the building(s) shall be retrofitted <br />to conform to all design standards of that section <br />• all outdoor solid waste disposal areas shall be screened in accordance ivah Section 10.1 of the <br />UDO <br />(c) Substantial Additions /Expansions shall be defined as proposed additions that equate to 50% or more <br />of total GFA of a site. Construction of a "Substantial Addition/Expansion" shall require compliance with <br />the full design and dimensional requirements of the UDO. <br />F_ I <br />L <br />