The R-3 Residence District is designed primarily to make provisions for single-family residential development at low and moderate suburban-type densities; to relate residential density to environmental and health concerns by limiting development to low density where water and sewer are to be on-lot, but allowing moderate suburban-type densities when public sewer or public water service is used; and to maintain the identify and character of existing suburban-type residential neighborhoods.
[Amended 1-8-1990 by Ord. No. 461]
A. 
Permitted principal uses. A building may be erected, altered or used and land may be used or occupied, subject to the provisions in Articles XXIX and XXX, for any of the following uses and for no other:
(1) 
Single-family detached dwelling.
(2) 
Park or recreation area.
(3) 
Woodlands, silviculture, wildlife and nature preserve or other open space use.
(4) 
Communications antennas mounted on an existing communications tower and communications equipment buildings, subject to the regulations set forth in § 275-216 of Article XXXIV.
[Added 9-14-1998 by Ord. No. 588; amended 3-8-1999 by Ord. No. 595]
B. 
Accessory uses.
(1) 
Accessory uses on the same lot and customarily incidental to the principal uses permitted in Subsection A herein, and as governed by the general provisions for accessory uses in Article XXXIII.
(2) 
Private parking space and private garage, in accordance with the off-street parking and loading regulation in Article XXXI.
(3) 
Private (noncommercial) swimming pool, tennis court or other private recreational facility, for the use and enjoyment of residents and their guests, subject to the general provisions for such accessory uses in Article XXXIII.
(4) 
Signs, in accordance with the sign regulations in Article XXXII.
(5) 
Accessory uses must comply with the general provisions for accessory uses in Article XXXIII.
C. 
Conditional uses.
(1) 
Agricultural uses and buildings, subject to the provisions in Article XXXI.
(2) 
Cultural, religious and charitable uses.
(3) 
Conversion of single-family detached dwellings to apartments, subject to the general provisions for conversions in Article XXXIII.
(4) 
Home professional office and home occupation, subject to the general provisions for home professional offices and home occupations in Article XXXIII.
(5) 
Public utility and governmental uses subject to the provisions in Article XXXIII.
(6) 
Communications antennas mounted on an existing public utility transmission tower, building or other structure and communications equipment buildings, subject to the regulations set forth in § 275-216 of Article XXXIV and all other standards and criteria for approval of conditional uses in this chapter.
[Added 3-8-1999 by Ord. No. 595]
The maximum height of dwellings and other structures erected, enlarged or used shall be 35 feet, except as provided in Article XXXIV.
[Amended 1-8-1990 by Ord. No. 461]
Except as restricted under Articles XXIX and XXX, the following area and bulk regulations shall apply:
A. 
Residential dwelling units.
(1) 
Lots with on-lot sewage disposal systems and on-lot water supply systems shall meet or exceed the following standards.
(a) 
Minimum lot area: one acre for each principal permitted building.
(b) 
Minimum lot width at building line: 120 feet.
(c) 
Minimum lot width at street line: 50 feet.
(d) 
Maximum impervious surface area: 40% of the area of the subdivision tract.
(e) 
Maximum building coverage area: 20% of the area of the subdivision.
(f) 
Minimum depth of each front and rear yard: 50 feet.
(g) 
Minimum aggregate width of side yards: 60 feet.
(h) 
Minimum width of each side yard: 25 feet.
(i) 
Minimum width for yard abutting a street on a corner lot: 50 feet.
(2) 
Lots with public sewer but no public water shall meet or exceed the following standards:
(a) 
Minimum lot area: 1/2 acre for each principal permitted building.
(b) 
Minimum lot width at building line: 100 feet.
(c) 
Minimum lot width at street line: 50 feet.
(d) 
Maximum impervious surface area: 45% of the area of the subdivision tract.
(e) 
Maximum building coverage area: 20% of the area of the subdivision tract.
(f) 
Minimum depth of each front and rear yard: 35 feet.
(g) 
Minimum aggregate width of side yards: 45 feet.
(h) 
Minimum width of each side yard: 20 feet.
(i) 
Minimum width for yard abutting a street on a corner lot: 35 feet.
(3) 
Lots with public sewer and public water shall meet or exceed the following standards:
(a) 
Minimum lot area: 1/4 acre for each principal permitted building.
(b) 
Minimum lot width at building line: 70 feet.
(c) 
Minimum lot width at street line: 50 feet.
(d) 
Maximum impervious surface area: 50% of the area of the subdivision tract.
(e) 
Maximum building coverage area: 25% of the area of the subdivision tract.
(f) 
Minimum depth of each front and rear yard: 30 feet.
(g) 
Minimum aggregate width of side yards: 30 feet.
(h) 
Minimum width of each side yard: 10 feet.
(i) 
Minimum width for yard abutting a street on a corner lot: 30 feet.
B. 
Other uses. The area and bulk regulations for certain conditional uses shall be as follows:
(1) 
Agricultural uses shall meet or exceed the area and bulk regulations started at Subsection A(1).
(2) 
Cultural, religious and charitable uses.
(a) 
Minimum lot area: five acres.
(b) 
Minimum lot width at building line: 200 feet.
(c) 
Minimum lot width at street line: 150 feet.
(d) 
Maximum total impervious surface area: 35%.
(e) 
Maximum building coverage: 15%.
(f) 
Minimum depth of each front and rear yard: 100 feet.
(g) 
Minimum width of each side yard: 50 feet.
(3) 
For all other conditional uses, the area and bulk regulations shall either be those set forth in Subsection A(1) or B(2) above, depending on which uses the particular conditional use in question is most similar to.