In an R-1 zone, the following uses and their accessory uses are permitted outright subject to the applicable provisions of Chapters 16.72, 16.76, 16.80 and 16.96 of this title:

1. A one-family dwelling built on site;
2. A factory built dwelling;
3. A manufactured home, subject to the siting standards of Section 16.72.140 of this title;
4. Agricultural use of land provided that no livestock shall be raised or kept on the premises and provided further that no commercial structure shall be constructed or maintained on the premises. For purposes of this Section 16.12.010, chickens and ducks are not considered to be livestock. The keeping of chickens and ducks are subject to provisions of Chapter 16.72, Supplementary Regulations;
5. A travel trailer or recreation vehicle stored unoccupied on a lot in combination with an approved dwelling (see Chapter 10.12 of this code);
6. Residential Homes; and
7. Family Day Care.
8. One Accessory Dwelling Unit (see Section 16.72.040(E)).

In an R-1 zone, the following uses and their accessory uses may be conditionally permitted subject to the applicable provisions of Chapters 16.72, 16.76, 16.80, 16.84 and 16.96 of this title:

1. Cemetery;
2. Church, non-profit religious or philanthropic institution;
3. Community Center;
4. Nursery school, Kindergarten or similar facility;
5. Governmental structure or use of land for necessary public utility facilities;
6. Home Occupation, subject to meeting all applicable standards listed in Section 16.84.070 of this title;
7. Golf course or country club, but not a miniature golf course or similar type of amusement facility;
8. Private, non-commercial recreation club such as tennis, swimming or archery club, but not commercial amusement or recreation enterprises;
9. Public park, playground, golf course, swimming pool or similar recreation use;
10. Public school or private school offering curriculum similar to public school;
11. Temporary real estate offices offering residential property within a specific subdivision or development for sale, rent or lease;
12. Residential Day Care Facility as defined in ORS 197.680;
13. Towers
14. Two or more Accessory Dwelling Units (see Section 16.72.040(E)).

In addition to standards provided in Chapters 16.72, 16.76, 16.80, 16.84 and 16.96 of this title, in an R-1 zone, the following standards shall apply:

1. Lot Size and Dimensions. The following minimum lot size and dimensions will apply in the R-1 zone:
   1. The minimum lot area shall be six thousand (6,000) square feet for a one-family dwelling with public water and sewer; fifteen thousand (15,000) square feet with public water only.
   2. The minimum lot width shall be sixty (60) feet for an interior lot and sixty-five (65) feet for a corner lot, except flag lots, which require a minimum of twenty-five (25) feet of frontage.
   3. The minimum lot depth shall be eighty (80) feet.
   4. No lot area, yard, off-street parking or loading area, or other required open space for one use shall be used as the required lot area, yard, off street parking or loading area, or other required open space for another use.
   5. Lot area, for ocean and bay front lots or lots with intervening ownership which does not prevent coastal erosion from progressive deterioration of the property shall be determined by the amount of area from the landward boundary of the riparian vegetation zone to the landward extent of the property.
2. Yards. The minimum yard requirements in the R-1 zone shall be as follows:
   1. The front yard shall be a minimum of twenty (20) feet.
   2. Each side yard shall be a minimum of five (5) feet, but any part of a building exceeding fifteen (15) feet in height must have a setback from a side property line equal to or greater than one-third the height of that part. (Height is measured from grade level adjacent to the wall which is closest to the side property line.)
   3. The street side yard shall be a minimum of twenty (20) feet, except on lots fifty (50) feet wide or less the street side yard shall be ten (10) feet.
   4. The rear yard shall be a minimum of ten (10) feet except;
      1. An accessory structure not used for human habitation, not higher than fifteen (15) feet, and separated from the main building may be located no closer than five (5) feet from a rear property line, and
      2. On a corner lot, the set back required from the rear property line shall be the same as required for side yards.
   5. No structure shall be located closer than sixty (60) feet from the centerline of any arterial street nor forty (40) feet from the centerline of any collector street.
3. Special Set-Back Requirements.
   1. Clubs, lodges, fraternal organizations, community swimming pools, and buildings housing recreational facilities in residential zones shall be located no closer than thirty feet (30) from any other lot in a residential zone.
   2. General provisions regarding accessory uses, Section 16.72.050 of this title and exceptions to the building code, Section 16.80.010 should be reviewed.
4. Decks: Unenclosed decks, unroofed landings, porches and stairs may project into any required yard, providing the following conditions are met:
   1. No portion except the guard rails shall extend above the floor level of a habitable room;
   2. No such projection shall obstruct a stairway; and
   3. No such projection shall extend into the required yard more than one-third the distance of the setback required.
5. Drainage. A plan shall be submitted showing width, depth, and direction of flow of all drainage channels on property. In addition, the location, size and type of conduit used in drainage channels and drive way accesses shall be clearly delineated. Water from roof drains and other nonimpervious surfaces shall not be concentrated and directed so as to cause damage to other properties, and shall be directed towards the street or to an on-site dry well. Pipes draining water from roof drains and other nonimpervious surfaces shall not be allowed to connect to any sanitary sewer facilities.
6. Excavation/Fill. A plan shall be submitted showing cubic yards removed or filled and a final elevation certified by a registered professional engineer for the removal of more than fifty (50) cubic yards.
7. Building Height. No building in the R-1 zone shall exceed a height of thirty (30) feet.
8. Lot Coverage. Buildings including accessory structures and garages shall not occupy more than forty-five (45) percent of the total lot area.
9. Distance Between Buildings. A minimum distance of six (6) feet shall be maintained between a building designed for dwelling purposes and other buildings on the same lot.
10. Any property identified as a geological natural hazard area as listed in Section 16.96.020 of this title or any property that has a twelve (12) percent slope or greater, as defined by a 3:1 ratio; 3 horizontal, 1 vertical, shall require a geotechnical analysis of the property in accordance with Section 16.96.030(D)(4) of this title.