Chapter 17.59 — HILLSIDE DISTRICT

17.59.110 Purpose. ¶

The purpose of this chapter is to provide regulations for the development of those areas in the city which, due to their topography, require special consideration to assure that they are developed in a way that will substantially maintain their natural character and environmental and aesthetic values in accordance with the policies set forth herein.

(‘78 Code, § 17.62.110.) (Ord. 2813 § 2, 2006; Ord. 1531 § 1 (part), 1979.)

17.59.120 Applicability. ¶

The regulations contained in this chapter shall be considered as supplementary to the city's other ordinances establishing standards for underlying zones. When a conflict in the standards of the Hillside District and the underlying zone exists, the standards of the Hillside District shall be used. "Hillside District" means any parcel or proposed parcel which before any new grading is located in a slope area of 15% or greater. Any parcel located within the 15% or greater slope area as shown by Figure 4.5-1, Slope Analysis of the City of Corona General Plan Technical Background Report, as updated in 2003, shall be considered under the jurisdiction of this chapter. (‘78 Code, § 17.62.120.) (Ord. 2813 § 2, 2006; Ord. 1531 § 1 (part), 1979.)

17.59.130 Policies. ¶

The goal of the Hillside District chapter is to develop and implement land use controls that preserve significant visual resources from potential loss or disruption. This goal shall be achieved through the following policies as follows:

(A) Encourage development clustering which contributes to the provision of view corridors;
(B) Encourage development design that reflects the distinct environmental and topographical characteristics of the land;
(C) Encourage the clustering of development on the most gently sloping portions of the site;
(D) Encourage innovative architectural, landscaping, circulation and site design;
(E) Discourage mass grading of large pads and excessive terracing except where soils stability dictates grading and recompaction for public safety;
(F) Provide for safe circulation of vehicular and pedestrian traffic to and within hillside areas and to provide adequate access for emergency vehicles necessary to serve hillside areas; and
(G) Encourage design and building practices to assure maximum safety from wildfire hazard.

(‘78 Code, § 17.62.130.) (Ord. 2813 § 2, 2006; Ord. 1531 § 1 (part), 1979.)

17.59.140 Standards and policies – Generally. ¶

(A) City staff shall review all plans for development in Hillside District areas to assure their compliance with the standards and guidelines set forth in this chapter.

(B) In this review, staff shall take into account the policies set forth in § 17.59.130.
(‘78 Code, § 17.62.140.) (Ord. 2813 § 2, 2006; Ord. 1531 § 1 (part), 1979.)

17.59.150 Density. ¶

Density shall be established by the General Plan land use designation applicable to the site in which the project is located. For the purpose of calculating allowable density, any area with a General Plan designation of Open Space shall be considered to have an allowable density equivalent to that of the Rural Residential I General Plan designation. This is for the sole purpose of establishing allowable density and does not entitle the subject site to such density. Development in hillside areas with greater than 25% slope shall be clustered on the most gently sloping portions of the site, to the extent possible, according to the following density limitations of the underlying General Plan land use plan designation.

*Maximum Percentage of Site to be Graded*	*Maximum Percent of Allowable Density*
40-44.9%	100%
45-49.9%	90%
50-54.9%	80%
55-59.9%	70%
60-64.9%	60%
65-69.9%	50%
70-74.9%	40%
75-79.9%	30%
80-84.9%	20%
85+%	10%

(‘78 Code, § 17.62.150.) (Ord. 2813 § 2, 2006; Ord. 1531 § 1 (part), 1979.)

17.59.160 Street standards. ¶

Hill streets shall conform to the following standards.

(A) The minimum right-of-way width requirements shown below do not include any additional setback requirements of the grading ordinance.

(1) Streets with residences on both sides shall have a minimum curb-to-curb width of 36 feet with a ten-foot

parkway on each side of the street. The parkway shall consist of a four-foot sidewalk and a six-foot landscape buffer per city standards.

(2) Streets with residences on one side of the street shall have a minimum curb-to-curb width of 36 feet with a ten-foot parkway on the house side of the street and a six-foot parkway on the other side. The ten-foot parkway shall consist of a four-foot sidewalk and a six-foot landscape buffer, per city standards. The six-foot parkway shall consist of a landscape buffer per city standards.

(3) Access roads between residential clusters shall have a ten-foot parkway on one side of the street and a six-foot parkway on the other. The ten-foot parkway shall consist of a four-foot sidewalk and a six-foot landscape buffer per city standards. The six-foot parkway shall consist of a landscape buffer per city standards. No parking is permitted on access roads.

(a) Access roads with maximum average daily trips of 500 or less shall have a minimum curb-to-curb width of 28 feet.

(b) Access roads with maximum average daily trips in excess of 500 shall have a minimum curb-to-curb width of 36 feet.

(B) Maximum street grade shall be 12% except that steeper grades may be allowed where determined appropriate by the Public Works Director and Fire Chief.
(C) Minimum centerline radius shall be 250 feet provided there is appropriate stopping and passing distance.
(D) Cul-de-sacs shall conform to the adopted cul-de-sac specifications of the Public Works Department.
(E) Street lights shall be provided in conformance with adopted city plans and specifications or as approved by the Public Works Director.
(F) All other street improvement standards shall conform to the adopted standard plans and specifications of the Public Works Department.

(‘78 Code, § 17.62.160.) (Ord. 2813 § 2, 2006; Ord. 1729 § 1, 1984; Ord. 1531 § 1 (part), 1979.)

17.59.170 Fire protection. ¶

(A) In areas where, in the opinion of the city Fire Chief, there will be a fire hazard, unobstructed fire protection equipment access easements shall be required, as well as fuel modification plans.

(B) Water mains and water systems shall be sized to provide sufficient water to meet the firefighting requirements of the hillside area involved. The Fire Chief shall review and approve proposed systems.

(‘78 Code, § 17.62.200.) (Ord. 2813 § 2, 2006; Ord. 1531 § 1 (part), 1979.)