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B PCompatibilitIFactorsf EvaluatedtinnALUCPst <br /> 9.A. - Page 143 <br /> InfilhDevelopmentw <br /> Another special situation that ALUCs should consider when formulating compatibility policies is <br /> how to deal with infill development. By definition, infill areas are parcels that are vacant or <br /> underutilized. The areas thus are subject to ALUC review authority,provided that their <br /> development is a part of a general or specific plan amendment or zoning change. The chief issue <br /> with regard to infill occurs when the surrounding existing uses are, and proposed new <br /> development would be, inconsistent with the ALUC's compatibility criteria. The question which <br /> ALUCs need to address is whether it is realistic to attempt to prevent technically incompatible <br /> development of a small area surrounded by similar existing development. <br /> ALUCs clearly can determine nonconforming infill uses to be inconsistent with their adopted <br /> ALUCP. However,local agencies are particularly likely to disagree with such determinations and <br /> potentially to overrule them.From a broader community planning perspective, creating <br /> incompatibility with airport activities may be judged as less of a concern than causing <br /> incompatibility between adjacent land uses—for example,by placing commercial or industrial <br /> uses in the midst of a residential area. <br /> In these circumstances, a pragmatic approach may be for ALUCs to allow infill in locations not <br /> highly critical to airport activities and require local plans to designate compatible uses in the most <br /> important areas closest to the runways. Criteria outlining the conditions qualifying a parcel for <br /> infill development should be established. These criteria should address such factors as: <br /> • The portions of the AIA within which infill is to be permitted(infill within the runway <br /> protection zone might be prohibited, for example): <br /> • The maximum size of a parcel or parcels on which infill is to be allowed; <br /> • The extent to which the site must be bounded by similar uses(and not extend the perimeter <br /> of incompatible uses); <br /> • The density and/or intensity of development allowed relative to that of the surrounding uses <br /> and the otherwise applicable compatibility criteria; and <br /> • Other applicable development conditions (such as easement dedication requirements or <br /> special structural noise level attenuation criteria)which must be met. <br /> Mixes tlsew <br /> As compatibility is typically expressed in terms of allowable land uses, and associated <br /> density/intensity,mixed use development may create some difficulties for ALUCs.Mixed use is <br /> often associated with urban infill, and therefore the issues discussed above will also be factors in <br /> considering proposed mixed use development.While mixed use may mean any combination of <br /> uses separated in traditional zoning(such as commercial and industrial), the most common <br /> application of mixed use is housing in combination with commercial development. ALUCPs <br /> typically describe the allowable level of such development differently(residential density versus <br /> non-residential intensity). One recommendation is to convert residential densities into intensity <br /> levels (persons per acre). Such conversion can be done using"persons per household"data from <br /> SanfCarlosfAirportV B-20 ESAfAirportsf/130753f <br /> ALUCPfWhitefPape/ Junef2014f <br />