SECTION 22-21 - R-1 LOW DENSITY RESIDENTIAL DISTRICT
   The following regulations shall apply to the R-1 low-density residential district:
   (a)   Intent. The R-1 district is intended to encourage the development of permanent low-density residential neighborhoods. These districts are located primarily in areas susceptible to environmental damage from more intensive uses of the land.
   (b)   Permitted uses. The following uses shall be permitted by right:
      (1)   Detached single-family dwellings, not to include mobile homes.
      (2)   Customary accessory buildings, including private swimming pools and tennis courts.
      (3)   County owned or leased facilities.
      (4)   Accessory dwelling unit according to the provisions of Sec. 22-58.6 of this code.
   (c)   Special uses. The following uses are permitted, subject to the requirements of this district, and additional regulations and requirements imposed by the Board of Commissioners as provided in Article X of this chapter:
      (1)   Churches and cemeteries.
      (2)   Fire stations, schools and other public buildings.
      (3)   Home occupations.
      (4)   Private clubs, including boat launching areas, golf courses, tennis courts, community centers, libraries, picnic areas, beach clubs and concessions integral thereto; provided, that there is no open commercial activity and that no sign other than a directional sign is allowed.
      (5)   Public and private utility facilities (must provide a vegetated buffer strip at least ten feet in height where the facility abuts a residential lot or use).
      (6)   Family child care homes as defined in Section 22-2 and subject to the provisions of Section 22-29.1. (Adopted on 11-5-90; amended 5-16-11)
      (7)   Small child care homes, large child care homes, and small child care centers as defined in Section 22-2, only as an accessory use of an existing or proposed church. (Adopted on 11-5-90)
      (8)   University campuses.
         a.   University campuses may include educational buildings, service facilities, student housing, research facilities and other uses normally associated with college campuses.
         b.   The minimum lot size shall be no less than 30 acres.
         c.   There will be no commercial uses on the campus. (Adopted on 2-1-10)
   (d)   Dimensional requirements.
      (1)   Minimum lot size.
         a.   Single-family lots served by a private well and an on-site septic tank/drain field system: 20,000 square feet of area.
            Single-family lots served by a central water supply and an on-site septic tank/drain field system: 15,000 square feet of area.
            Single-family lots served by a central water supply and a central wastewater disposal system: 15,000 square feet of area. (Amended 9-19-94)
      (2)   Minimum lot width: 75 feet, measured at the building setback line.
      (3)   Minimum front yard: 25 feet.
      (4)   Minimum side yard: 10 feet. An additional 10-foot side yard adjacent to the street is required for a corner lot.
      (5)   Minimum rear yard: 25 feet.
      (6)   Maximum allowable lot coverage by principal use and all accessory structures: 30%.
      (7)   Height limitation: 35 feet. (11-20-75, art. 7, 7.06)
      (8)   Height limitation for R-1 on Hatteras Island:
         (a)   Lots 7,499 square feet or less in area – building height shall be limited to a total of 35 feet measured as an average of the peak of the roof.
         (b)   Lots 7,500 square feet to 14, 999 square feet in area – building height shall be limited to 35 feet to the top plat of the ceiling of the highest habitable floor for a total building height of 42 feet, measured as an average of the peak of the roof.
         (c)   Lots 15,000 square feet or greater in area – building height shall be limited to 35 feet for the highest horizontal structural member of the highest habitable floor, plus 10 feet for interior walls or a top plat level of 45 feet, plus 7 additional feet for attic space and roof line design, for a total building height of 52 feet, measured at the peak of the roof. (Adopted on 11-16-92)
      (9)   Height limitations for university campuses:
         (a)   Maximum building height shall be limited to 70 feet.
         (b)   An additional 2 feet of setback per foot of building height over 35 feet shall be established to any property line for structures exceeding 35 feet in height. (Adopted 2-1-10)
(Am. Ord. passed 9-16-2019; Am. Ord. passed 6-21-2021; Am. Ord. passed 4-20-2022; Am. Ord. passed 5-17-2023)