Limitations on required minimum open space and maximum impervious lot or site coverage are established for the following purposes:

(a)

To provide sufficient area on each building site for landscaping and open space.

(b)

To protect existing vegetation including trees.

(c)

Sufficient recharging of aquifer.

Thus, the following requirements are intended to qualify and supplement, as the case may be, the specific district regulations set forth in Article V:

A.

Open space, as defined in Section 2-4 of Article II of this Code, required for an existing building, structure or lot shall not be counted as open space for any other building, structure or lot.

B.

Open eaves, cornices, window sills and belt courses may project into any required yard a distance not to exceed two (2) feet. Open porches, as defined in Section 2-4(245) of Article II, or open fire escapes may project into a front yard a distance not to exceed five (5) feet.

C.

Where the dedicated street right-of-way is less than fifty (50) feet, the depth of the front yard shall be measured starting at a point twenty-five (25) feet from the edge of right-of-way.

D.

Any pedestrian walkway or path, patio, driveway, parking space or other vehicle circulation area, regardless of materials, including asphalt, concrete, pavers, pervious pavers, gravel, synthetic turf, and impervious mulch, shall be set back at least two (2) feet from the side and rear property lines. Pervious materials used in landscaping will be considered impervious material when used for parking. The provisions of this Code shall also apply to prohibit the diversion of drainage from vehicle parking or circulation areas onto adjacent properties.

E.

No dwelling shall be erected on a lot which does not abut at least one (1) street, which is at least forty (40) feet in width, for at least twenty (20) feet. The street shall form the direct and primary means of ingress and egress for all dwelling units. Alleys, where they exist, shall form only a secondary means of ingress and egress.

F.

Accessory buildings which are not a part of or attached to the main building may be built in the rear yard but shall not cover more than thirty (30) percent of the rear yard.

G.

On any corner lot, the applicable front yard setback shall apply to both street frontages. In cases where (1) two (2) corner lots adjoin at the end of a block, (2) the single-family dwelling units are designed rear-to-rear, and (3) there are no garage or main entry doorways exiting to the side front yard, then in such cases, the front side building setback shall be reduced to fifteen (15) feet from the property line. The foregoing provision applies only to new single-family dwellings for which building permits are obtained after January 15, 2008.

H.

On any corner lot on which a front and side yard is required, no wall, fence, sign, structure or any plant growth which obstructs sight lines at elevations between two and one-half (2½) feet and ten (10) feet above any portion of the crown of the adjacent roadway shall be maintained in a triangle formed by measuring from the point of intersection of the front and exterior side lot lines a distance of twenty-five (25) feet along the front and side lot lines, and connecting the points so established to form a safe sight triangle on the area of the lot adjacent to the street intersections of minor and collector streets. The same distance for the intersection of any street with an arterial street as defined in the Comprehensive Plan shall be forty (40) feet.

I.

An attached or detached private garage or carport which faces on a street shall not be located closer than twenty-five (25) feet to the street right-of-way.

J.

Open porches may extend into the rear yard in residential districts provided that:

(1)

The open porch does not cover more than thirty (30) percent of the rear yard;

(2)

The open porch does not increase the maximum impervious surface of the lot to be greater than fifty (50) percent;

(3)

The open porch is no closer than seven and one-half (7½) feet to the rear lot line and no closer than seven and one-half (7½) feet to either side lot line; and

(4)

The open porch does not extend into any utility, drainage or landscape easement or conservation area.

K.

The required open space area for a single-family residential lot shall not include covered area with any impervious materials as defined in Section 2-4 in Article II of this Code. In no case shall any impervious materials, other than those required for sidewalks, driveways or driveway aprons, be placed within public or private roadway rights-of-way.