1. PURPOSE. To provide for two-family residential development at densities not exceeding 5.8 dwelling units per net acre.
2. PERMITTED PRINCIPAL USES.
   1. Two-family dwellings.
   2. Community living arrangements which have a capacity for eight (8) or fewer persons, subject to the limitations set forth in Section 62.23(7)(i) of the Wisconsin Statutes.
   3. Foster family homes.
   4. Family day care homes.
   5. Essential services.
   6. Zero lot line developments which meet the following conditions:
      1. Lots shall have a minimum area of seven thousand five hundred (7,500) square feet and shall not be less than fifty (50) feet in width with one dwelling unit per lot.
      2. There shall be a minimum setback of twenty-five (25) feet from the right-of-way of all public streets or from private drives. There shall be a side yard requirement on one side of a building of not less than twenty (20) feet. The dwelling unit shall be placed on one side of the property line with a zero (0) foot side yard. The minimum distance between buildings shall be twenty (20) feet. There shall be a rear yard of not less than forty (40) feet for all lots.
      3. Buildings constructed shall be of the party-wall dwelling type and shall not exceed two (2) detached dwelling units, or shall be single-family detached dwelling units constructed on alternating lot lines.
      4. Each dwelling unit shall have separate utility connections.
3. PERMITTED ACCESSORY USES.
   1. Detached garages and carports.
   2. Gardening, tool, and storage sheds.
   3. Home occupations and professional home offices.
   4. Roof-mounted solar collectors provided that a registered engineer or registered architect shall certify that the structure is adequate to support the load.
   5. Earth station dish antennas located on the roof of the principal or accessory structure or in the rear yard. Where the earth station dish is roof-mounted, a registered engineer or registered architect shall certify that the structure is adequate to support the load.
4. CONDITIONAL USES.
   1. Bed and breakfast establishments as regulated in Section 22.24(4)(a).
   2. Churches and other places of worship and Sunday school buildings.
   3. Community living arrangements which have a capacity of nine (9) or more persons.
   4. Home Industries.
   5. Schools and colleges for academic instruction.
   6. (Am. #51-05) Utility substations, municipal wells, pumping stations, and towers.
   7. Wireless communications facilities provided that comply with the provisions of Section 22.21.
5. LOT AREA AND WIDTH. Lots shall be a minimum of fifteen thousand (15,000) square feet in area and shall not be less than one hundred (100) feet in width. Corner lots shall be a minimum of one hundred ten (110) feet in width.
6. BUILDING HEIGHT AND AREA.
   1. (Am. #11-16) No principal building or part of a principal building shall exceed forty (40) feet in height. Accessory buildings shall be less than twenty (20) feet tall and shall not exceed the height of the principal structure.
   2. The total minimum floor area of a two-family structure shall be two thousand two hundred (2,200) square feet. The total minimum floor area of each unit within a two-family building shall not be less than one thousand one hundred (1,100) square feet.
   3. No detached accessory structure shall exceed one thousand one hundred fifty-two (1,152) square feet in area.
7. SETBACK AND YARDS.
   1. There shall be a minimum street yard setback of twenty-five (25) feet from any street right-of-way.
   2. There shall be a side yard on each side of all buildings of not less than ten (10) feet in width.
   3. There shall be a rear yard of not less than forty (40) feet.
   4. There shall be a minimum shoreyard setback of seventy-five (75) feet from the ordinary highwater mark of a navigable body of water.
8. EROSION CONTROL. The uses and structures in the RD-1 District are subject to Chapter 32 of the City of Waukesha Municipal Code, Chapter 21 of the Wisconsin Uniform Dwelling Code, and any other applicable State laws and administrative rules.
9. PLANNED UNIT DEVELOPMENTS. (Cr. #38-02) The restrictions on lot area, lot width, building height, setbacks, and yards may be reduced or increased if the property is part of a Planned Unit Development Overlay District in accordance with Section 22.52.

(Rep. & recr. #2-87) (Rep. & recr. #66-01) (Repealed & replaced #2020-14)