Chapter 18.21
R-4.3, 4.3 UNITS PER ACRE ZONE (10,000 SQUARE FEET)

Sections:

18.21.010 Purpose.

18.21.020 Permitted uses.

18.21.030 Conditional uses.

18.21.040 Lot area and density.

18.21.050 Lot coverage.

18.21.060 Setbacks.

18.21.070 Building height limitations.

18.21.075 Minimum lot dimensions.

18.21.080 Flexible lot design standards.

18.21.010 Purpose.

The purpose of the R-4.3 zone is to provide for vital residential neighborhoods having urban density and having those community improvements and facilities normally associated with urban area development. (Ord. 2005-21 § 1, 2005: Ord. 92-08 § 2, 1992)

18.21.020 Permitted uses.

Permitted uses in the R-4.3 zone are:

A. Accessory dwelling units;

B. Accessory uses and buildings;

C. Family day care homes;

D. Manufactured homes;

E. Minor home occupations;

F. Parks, passive recreation;

G. Single-family dwellings built to I

BC standards. (Ord. 2005-29 § 17, 2005: Ord. 95-07 § 13, 1995; Ord. 92-08 § 2, 1992)

18.21.030 Conditional uses.

Conditional uses are:

A. Agriculture;

B. Child day care centers;

C. Clubs;

D. Cultural facilities;

E. Educational, governmental, religious or health care facilities;

F.  Multifamily dwellings;

G. Major home occupations;

H. Parks, active recreation;

I. Public and private utility buildings and structures;

J. Recreation activities, indoor;

K. Recreation activities, outdoor;

L. Shared-use park and ride lots. (Ord. 2005-29 § 18, 2005: Ord. 2005-21 § 2, 2005: Ord. 96-15 § 5, 1996; Ord. 92-08 § 2, 1992)

18.21.040 Lot area and density.

A. The density shall be one unit per 10,000 square feet of land.

B. The minimum lot area shall be 10,000 square feet.

C. Pursuant to Chapters 18.37 and 18.41 BIMC, the minimum lot area for a dwelling unit shall be 5,400 square feet for that area designated on the official land use map as the urban single-family overlay district (R-8SF). All other requirements of this chapter shall apply.

D. When a short plat, subdivision, large lot subdivision, or planned unit development of land is proposed pursuant to the requirements of the flexible lot design process, the provisions of BIMC 18.21.080 apply. (Ord. 2004-12 § 15, 2004: Ord. 2001-44 § 1, 2001: Ord. 95-35 § 4, 1995; Ord. 92-08 § 2, 1992)

18.21.050 Lot coverage.

The maximum lot area covered by buildings shall not exceed 25 percent. (Ord. 92-08 § 2, 1992)

18.21.060 Setbacks.

A. Front setbacks, rear setbacks and side setbacks facing streets shall be not less than 25 feet, measured by the distance from the nearest lot lines, planned rights-of-way, or road easements.

B. Side setbacks shall not be less than 15 feet in total sum with no side setback less than five feet.

C. Rear setbacks shall be 15 feet.

D. In case of structures over two stories high, front and rear setback requirements each shall be increased by four feet for every story over two; each side setback requirement shall be increased by five feet for every story over two.

E. In the case of detached accessory dwelling units, side setbacks shall be no less than 10 feet for single-story and 15 for two-story. (Ord. 2004-02 § 14, 2004: Ord. 95-07 § 14, 1995; Ord. 92-08 § 2, 1992)

18.21.070 Building height limitations.

A. The building height is 25 feet, except that buildings up to 30 feet may be allowed under a conditional use permit if, in addition to the requirements of Chapter 18.108 BIMC, it is demonstrated that: (1) view opportunities are not substantially reduced; (2) fire flow is adequate; (3) no unstable slopes or soils are on the building site; and (4) solar access of neighboring lots is not reduced.

B. Structure height is 25 feet, except that taller structures may be allowed with the issuance of a conditional use permit; provided, that (1) view opportunities are not substantially reduced; (2) structures shall not be permitted in required setbacks except as otherwise authorized by this code; (3) each setback requirement shall be increased one-half foot for every foot above the maximum structure height; (4) noncommercial, nonparabolic antennae affixed to noncommercial communication towers that are 50 feet or less in height above grade shall not require conditional use permits; (5) one flagpole 45 feet or less in height may be placed on a parcel without requiring a conditional use permit; (6) utility poles 50 feet or less in height shall not require conditional use permits; and (7) utility structures existing on the effective date of the ordinance codified in this subsection that are taller than 50 feet shall not be considered nonconforming structures and may be replaced without a conditional use permit; provided, that the structure is not larger or taller than the original structure and is not moved more than 20 feet from its original location. (Ord. 2004-02 § 1, 2004; Ord. 95-13 § 5, 1995; Ord. 92-08 § 2, 1992)

18.21.075 Minimum lot dimensions.

No minimum lot width and depth shall be imposed. (Ord. 92-08 § 2, 1992)

18.21.080 Flexible lot design standards.

The following bulk and dimensional standards shall not apply to those lots which have been established pursuant to the requirements of the flexible lot design process by short subdivision, subdivision, large lot subdivision, or as a planned unit development:

A. Minimum lot area;

B. Setbacks;

C. Minimum lot dimensions. (Ord. 2004-02 § 3, 2004; Ord. 96-06A § 1, 1996)