1635 Amherst Dr Ames, IA 50014-3925

(a) More than one principal building may be erected on a lot in an agricultural, commercial, industrial or special purpose zoning district, provided that all setbacks from the exterior property lines otherwise required for a single principal building are observed. The distances between buildings internal to the site shall be determined by the provisions of the City Building and Fire Codes. (i) Exception. Within an agricultural zone, only one single-family dwelling is permitted on a lot with or without additional principal buildings for permitted uses within the zone. (ii) Exception. In the South Lincoln Mixed -Use District (S -SMD), no more than one single- family [or two-family] home is permitted on a lot and no other principal buildings are permitted on that lot. (b) Within a residential zoning district, only one principal building is permitted on a lot except as authorized in this section. (i) More than one apartment building is permitted on a lot, provided that all area and setback requirements are calculated as if each structure were on its own individual lot. (ii) A principal use of Group Living within multiple buildings on a site may occur within medium and high-density residential zoning districts, provided that all area and setback requirements are calculated and applied to each building. (iii) Institutional uses may include multiple buildings provided that all area and setback requirements are calculated and applied to each building. (iv) A mixed-use building with Office or Trade uses and apartment dwellings shall be permitted to have multiple buildings on a lot subject to the standards of apartment buildings. (v) A combination of principal uses within multiple buildings is permitted for uses described above, subject to the standards described for area and setbacks requirements. (vi) Within a F-PRD zoning district, multiple principal buildings are permitted subject to approval of a Major Site Development Plan. (c) In cases where a Residential Use, as categorized within this ordinance, exists as a non- conforming use on a lot, additional principal buildings for a permitted use are not allowed. (Ord. No. 4122,09-11-12; Ord. No. 4161, 10-8-13; Ord. 4390, 9-13-19)