Residential Zone R-10
Section 7. Uses Permitted Outright . In a R-10 zone the following uses and their accessory uses are permitted outright:
(1) Single-family dwelling.
(2) Agricultural use of land, such as truck gardening, orchards and horticulture, but excluding commercial buildings or structures. The raising of animals other than normal household pets is allowable, but only in compliance with Section 131. (Amended by Ord. No. 3294/1-82.)
(3) Duplex dwellings on not to exceed 20% of the lots in a newly platted, or replatted, subdivision, when such lots are so designated at the time of preliminary subdivision or resubdivision approval or reapproval. The minimum size for a subdivision proposing designation of up to 20% of the lots therein for duplexes is twenty lots. (Amended by Ord. No. 3240/5-81.)
(4) Home occupation, as defined in Section 3 hereof, subject to the requirements of Section 128A. (Added by Ord. No. 3029/8-79 and Amended by Ord. No. 4856/8-00.)
(5) A duplex lot, established in conformance with subsection (3) above, otherwise meeting the requirements of the Zoning Ordinance, may be divided for the purpose of allowing two single-family attached dwelling units. (Added by Ord. No. 3395/10-83.)
(6) A manufactured home complying with the placement standards contained in Section 77E. (Added by Ord. No. 4213/3-94.)
(7) Light Rail Facility. (Added by Ord. No. 4300/12-94.)
(8) Accessory Dwelling. (Added by Ord. No. 4902/5-00.)
(9) Residential Homes and Facilities (Added by Ord. No. 5667/9-06.)
Section 8. Conditional Uses Permitted . In a R-10 zone the following uses and their accessory uses are permitted when in accordance with Sections 78 to 83:
(1) Church.
(2) Governmental structure or use including public park, playground, recreation building, fire station, library, or museum.
(3) School: primary, elementary, junior high or senior high, college or university, publicly owned. Accessory uses such as tennis courts, grounds or playground lighting, covered walkways, surface or subsurface improvements, accessory buildings of less than 450 square feet, landscaping, shall be allowed as a part of such use without additional application or submission to the City of Hillsboro . (Amended by Ord. No. 2466/10-77 and 5168/7-02.)
(4) Utility substation or pumping station with no equipment storage.
(5) Residential recreation center. (Added by Ord. No. 2733/10-75, and Amended by Ord. No. 3599/2-86.)
(6) Condominium or unit ownership of duplex units allowed pursuant to Section 7 (3) hereof. (Added by Ord. No. 3029/8-79.)
(7) Group living structure, limited to the number of dwelling units allowable. (Added by Ord. No. 3029/8-79 and 5667/9-06.)
(8) Radio transmission facilities. (Added by Ord. No. 3194/12-80.)
(9) Light Rail Construction Area. (Added by Ord. No. 4300/12-94.)
(10) Transit Park and Ride. (Added by Ord. No. 4300/12-94.)
(11) Bed and Breakfast Inn , as defined in Section 3 (6) subject to the requirements of Section 128A. (Added by Ord. No. 4856/8-00.)
(12) Child Care Facility. (Added by Ord. No. 5168/7-02.)
Section 8A. Minimum and Maximum Densities. In the R-10 zone, the minimum density standard is 3.50 dwelling units per net residential acre. The maximum density standard is 4.35 dwelling units per net residential acre. (Added by Ord. No. 4902/5-00, Amended by Ord. No. 5778/8-07, and 5821/12-07)
Section 9. Signs. (Deleted by Ord. No. 5676/10-06. See Municipal Code Chapter 11.32.)
Section 10. Lot Size. In a R-10 zone the lot size shall be as follows:
(1) The minimum average lot area shall be 10,000 sq. ft. with a maximum of one single-family residence (or duplex) per lot. However, in a newly platted or replatted subdivision of eight lots or more lot areas and widths shall be varied as specified in the Lot Dimension and Setback Variation Requirements adopted under Subdivision Ordinance Article VII.
(2)The minimum lot widths at the front building line shall average 70 feet.
(3) The minimum lot depths shall average 90 feet.
(4)Notwithstanding the dimensional and area standards set forth in subsections (1) through (3) above, approved duplex lots may be split in order to allow for dual ownership, provided that the parent parcel meets or exceeds the minimum average lot areas and widths specified in Subsections 1 and 2. The dwelling units shall have a common wall at the zero lot line. (Added by Ord. No. 3395/10-83.)
(Section 10 Amended by Ord. No. 5778/8-07)
Section 11. Setback Requirements .Except as provided in Sections 88 and 93, in a R-10 zone the yards shall be as follows:
(1) The front yard shall be a minimum of 20 feet, except as provided in Subsection 7 of this Section. . (Amended by Ord. No. 2350/4-70)
(2) The side yard shall be a minimum of 10 feet, except as provided in Subsection 7 of this Section.
(3) The rear yard shall be a minimum of 20 feet.
(4) All corner lots shall have interior yards of not less than 10 feet, except as provided in Subsection 7 of this Section. (Added by Ord. No. 2350/4-70.)
(5) All corner lots shall have front yards of not less than 20 feet, except as provided in Subsection 7 of this Section. (Added by Ord. No. 2350/4-70.)
(6) All duplex lots shall meet the setback requirements established in Subsections (1) through (5) above, except that the setback for the zero lot line shall be waived. (Added by Ord. No. 3395/10-83.)
(7) In a newly platted or replatted subdivision of eight lots or more, front yards shall be varied, and side yards may be varied, as specified in the Lot Dimension and Setback Variation Requirements adopted under Subdivision Ordinance Article VII. (Added by Ord. No. 5778/8-07)
(Section 11 Amended by Ord. No. 5778/7-07)
Section 12. Height of Buildings . In a R-10 zone buildings shall not exceed a height of 35 feet or two and a half stories, whichever is less.
Section 13. Lot Coverage . In the R-10 zone buildings shall not occupy more than 40 percent of the lot area of an interior lot nor 45 percent of a corner lot. (Amended by Ord. No. 4902/5-00.)