(A) Purpose. The R-1 District is intended to provide low density residential areas, apartments and other buildings of three or more dwelling units, in those areas where the development corresponds to the Land Use Plan, where properly related to other land uses and thoroughfares, and where adequate municipal utilities are available.
(B) Permitted uses. The following uses shall be permitted in R-1 Residential District:
(1) Single-family dwellings, multiple-family dwellings and apartment buildings, and manufactured homes as defined by the approved minimum residential structure requirements, § 154.163 of this chapter;
(2) Parks and recreational areas owned or operated by governmental agencies;
(3) Public schools, private schools, nursery schools, churches, hospitals, nursery and convalescent homes; and
(4) Home occupations.
(C) Conditional uses. Buildings or land may be used for the following if granted a conditional use permit:
(1) Earth-sheltered residential buildings;
(2) Municipal administration buildings, police and fire stations, museums, art galleries, post offices and other municipal service buildings;
(3) Water supply buildings, reservoirs, wells, elevated tanks and similar essential public utility and service structures;
(4) Railroad right-of-way, but not including railroad yards;
(5) Boarding or rental rooms not exceeding five to eight persons on a premises;
(6) Hospitals and clinics;
(7) Open land recreational uses;
(8) Charitable institutions; and
(9) Uses determined by the Planning Commission to be of the general character of the conditional uses above and found not to be detrimental to the general health and welfare of the city.
(D) Accessory uses. The following uses shall be accessory uses within the R-1 Residential District:
(1) Private garages and carports;
(2) Private swimming pools. Either permanent or temporary, with a depth of water over two feet, intended for the use of the residents, when conforming to the following standards.
(a) Pools shall not be located within ten feet of any side or rear lot line nor within six feet of any principal structure or frost footing. Pools shall not be located within any front yard.
(b) Pools shall not be located beneath overhead electrical lines or over underground utility lines of any type.
(c) Pools shall not be located within any private or public utility, walkway, drainage or other easement.
(d) The filter unit, pump, heating unit and any other noise making mechanical equipment shall be located at least 30 feet from any adjacent residential structure and not closer than five feet to any lot line.
(e) Lighting for the pool shall be directed toward the pool and not toward adjacent property.
(f) A security fence at least five feet in height shall completely enclose the area in which an outdoor pool is located.
(g) All construction of swimming pools shall be subject to the submission of a site plan and obtaining a zoning permit.
(3) Parking of one commercial motor vehicle of not over 26-foot length used by the resident occupant, and parking of passenger cars, but not including the storage of vehicles which are inoperable or for sale or rent. All such vehicles must be parked on authorized parking surfaces as defined in this chapter. If not, they will be unauthorized vehicles and not permitted as an accessory use.
(E) Height regulations.
(1) No structure shall exceed two and one-half stories or 30 feet in height; except that, church spires, belfries, domes which do not contain usable space, and chimneys may be of any height which does not conflict with air traffic requirements.
(2) For multiple-family dwellings, structures shall not exceed three stories or 45 feet in height.
(F) Front yard regulations.
(1) Front yards shall have a depth of not less than 30 feet. However, in a block where two or more residences have been erected facing the same street, the setback for remaining lots in that block fronting on the same street shall be determined by the average setback of existing buildings.
(2) For multiple-family dwellings, a front yard shall have a depth of not less than 30 feet. However, any portion of a building exceeding three stories in height shall have an additional front yard setback of one foot for every one foot that the building exceeds the height of 30 feet.
(3) Where a lot is located at the intersection of two or more roads or highways, there shall be a front yard setback on each road or highway side of the corner lot. No accessory buildings shall be allowed within the required front yard.
(G) Side yard regulations.
(1) Each lot shall have two side yards, each yard having a width of not less than six feet on each side of the building.
(2) For multiple-family dwellings, there shall be a side yard having a width of not less than 15 feet on each side of the building.
(H) Rear yard regulations.
(1) Each lot shall have an unoccupied rear yard having a depth of not less than 25% of the lot depth. Accessory buildings such as non-attached garages and structures used for storage of non-commercial property shall be located no less than four feet from the property line and not less than four feet from an alley.
(2) For multiple-family dwellings, there shall be a rear yard of not less than 25 feet or 25% of the lot depth, whichever is greater.
(I) Lot size regulations.
(1) Every lot on which a one- or two-family dwelling is erected shall contain an area of not less than 7,000 square feet. No lot shall have more than 5% of its space devoted to parking space and driveways.
(2) For multiple-family dwellings, the minimum lot area per dwelling unit shall not be less than 2,000 square feet. However, public housing for the elderly projects and privately sponsored private housing for the elderly projects built and occupied to the same standards, require only 1,000 square feet per dwelling unit.
(3) Every lot on which a one- or two-family dwelling is erected shall not be less than 75 feet in width. Lots fronting on curvilinear streets shall have a minimum frontage of 50 feet and a 75-foot width at the building line.
(4) The lot area and width regulations of this section shall not apply to lots recorded prior to the adoption of this chapter. However, the lots shall not be altered in any way which would further reduce their dimensions below the minimum requirements of this section, and no lot in conformance with the provisions of this section shall be reduced or resubdivided to produce a lot not in full conformance with this section.
(J) Maximum ground coverage. For multiple-family dwellings, not more than 35% of a lot or plot shall be occupied by buildings. No lot shall have more than 5% of its space devoted to parking space and driveways.
(K) Permit regulations. No zoning permit for a multiple-family dwelling may be issued unless the permit application is accompanied by a site plan. The site plan shall include topography, location of parking and loading spaces, landscaping, screening and other information pertinent to the development of the site.
(2001 Code, § 11.06)