(1) INTENT. The intent of this district is to provide for medium- to high-density residential development, including single-family, two-family, multiple-family, and mobile home dwellings and mobile home parks.

(2) PERMITTED PRINCIPAL USES AND STRUCTURES. The following shall be permitted as uses by right when in conformance with the Residential Design Standards in section 11-521:

(a) Single-family dwellings.

(b) Two-family dwellings.

(c) Multiple-family dwellings.

(d) Mobile homes.

(e) Mobile home parks, or any expansion of an existing mobile home park, in compliance with section 11-515.

(f) Child care homes.

(3) PERMITTED ACCESSORY USES AND STRUCTURES. The following accessory uses and structures shall be permitted if the principal use or structure is present:

(a) Accessory uses and structures normally appurtenant to the permitted uses and structures and to uses and structures permitted as special uses.

(b) Private garages.

(c) Home occupations in accordance section 11-512.

(d) Temporary buildings, mobile homes, or travel trailers for dwelling, storage, office, or other uses incidental to construction or building remodeling work, provided that such temporary buildings or mobile homes are removed within sixty days after occupancy of the permanent residential dwelling.

(e) Travel trailer which is being stored or otherwise kept, provided said trailer is not used for occupancy as a dwelling or sleeping space for any one period of time to exceed thirty days in duration.

(4) SPECIAL EXCEPTION USES. A building or premises may be used for the following purposes in the R-4 Mixed Residential District if a special use permit for such use has been obtained in accordance with section 11-230:

(a) Utility substations.

(b) Hospitals and nursing, convalescent, and retirement homes.

(c) Medical clinics.

(d) Professional, medical, and business offices, including personal services offices that are appropriate in a residential neighborhood.

(e) Child care centers.

(f) Alternative energy systems utilizing biomass, geothermal, hydropower, solar, or wind sources in conformance with Net Metering per Neb. Rev. Stat. §§ 70-2001 to 70-2005 (August 30, 2009, as amended). Individual or Small Wind Energy Conversion Systems (SWECS) shall also be in conformance with the provisions of sections 11-525 and 11-526.

(g) Co-location of additional cellular or communication antennas on an existing tower in conformance with the provisions of section 11-528.

(h) Commercial business meeting facilities, group activity centers, or fraternal organization meeting facilities.

(i) Community unit plans, in compliance with the Supplementary Regulations.

(5) PROHIBITED USES: All other uses and structures, which are not specifically permitted or not permissible as special exception uses, shall be prohibited from the R-4 Mixed Residential District.

(6) SPACE LIMITATIONS. No residential structure shall be constructed or substantially improved within a floodplain or flood prone area unless the lowest floor, including basement, is elevated to at least one foot above the base flood level. Additionally, no structures for human habitation shall be allowed in a designated floodway. No property shall be utilized for any purpose other than permitted by this District, and no structure shall be moved, constructed, or substantially improved without complying with the provisions of the Floodplain Regulations. The following shall apply except as otherwise allowed for community unit plans of the Supplementary Regulations:

(a) The maximum height and minimum lot requirements within the R-4 Mixed Residential District shall be as follows:

(b) Maximum lot coverage shall be 60%.

(7) MISCELLANEOUS PROVISIONS: Supplementary Regulations shall be complied with as herein defined.

(8) SIGN REGULATIONS: Signs within the R-4 Mixed Residential District shall be in conformance with the provisions of the Sign Regulations.

(9) PARKING REGULATIONS: Parking within the R-4 Mixed Residential District shall be in conformance with the provisions of section 11-508.

(10) FENCE REGULATIONS: Fences within the R-4 Mixed Residential District shall be in conformance with the provisions of section 11-502.

Source: Ord. 1116 (1990); Ord. 1142 (1991); Ord. 1264 (1995); Ord. 1400 (1998); Ord. 1926 (2015); Ord. 1974 (2016)