§ 78-85. Impervious surface coverage.

(a)

Generally. Impervious surface on a development site shall not exceed the ratios provided in each zoning district. The establishment of an impervious surface ratio provides a control of the intensity of development of land, by controlling the amount of the land which may be covered by any type of impervious surface.

(b)

Ratio calculation. The impervious surface ratio is calculated by dividing the total impervious surface by the gross site area. Water bodies are considered impervious.

(c)

Treatment of cluster development. Because the impervious surface ratio is calculated for the gross site, cluster development or other site design alternatives may result in individual lots within a development project exceeding the impervious surface ratio, while other lots may be devoted entirely to open space. The planning and zoning board may require, as a condition of approval, deed restrictions or covenants that guarantee the maintenance of such open space in perpetuity.

(d)

Alternative paving materials. If porous paving materials (such as grasscrete, gravel or other like materials) are used in accordance with the Florida Building Code, then only 20 percent of the area covered with porous paving materials shall be counted as impervious surface.

(e)

Pavers. If pavers are used in accordance with the Florida Building Code, then only 35 percent of the area covered with pavers shall be counted as impervious surface.

(f)

Impervious surface ratios. The maximum impervious surface ratio is given for each zoning district in this article.

(Ord. of 9-25-06)