§ 25-2-551. LAKE AUSTIN (LA) DISTRICT REGULATIONS.

(A)

In this section:

(1)

SHORELINE means the 492.8 topographic contour line along the shores of Lake Austin.

(2)

SHORELINE SETBACK means a line parallel to the shoreline and at a distance from the shoreline that is prescribed in this section.

(3)

SHORELINE SETBACK AREA means an area between the shoreline and the shoreline setback.

(B)

This subsection specifies shoreline setbacks in a Lake Austin (LA) district.

(1)

The shoreline setback is:

(a)

75 feet; or

(b)

25 feet, if:

(i)

the lot is located in a subdivision plat recorded before April 22, 1982, or is a legal tract exempt from the requirement to plat; and

(ii)

the distance between the shoreline and the front lot line, or the property line of a legal tract, is 200 feet or less.

(2)

A shoreline setback area is excluded from impervious cover calculations.

(3)

No structures are allowed in a shoreline setback area, except that:

(a)

a bulkhead, retaining wall, fence, dock, public boat ramp, non-mechanized pedestrian access facility, or marina may be constructed and maintained in accordance with applicable regulations of this title; and

(b)

an on-site sewage facility may be constructed and maintained in accordance with the applicable regulations of Chapter 15-5 ( Private Sewage Facilities ).

(C)

This subsection specifies lot width and impervious cover restrictions in a Lake Austin (LA) district.

(1)

If a lot fronts on a cul-de-sac and is included in a subdivision plat recorded after April 22, 1982 or is exempt from the requirement to plat it must have:

(a)

a chord width of not less than 33 feet at the front lot line;

(b)

a width of not less than 60 feet at the front yard setback line; and

(c)

a width of not less than 100 feet at all points 100 feet or more behind the front lot line.

(2)

For a lot included in a subdivision plat recorded after April 22, 1982, impervious cover may not exceed:

(a)

20 percent, on a slope with a gradient of 25 percent or less;

(b)

10 percent, on a slope with a gradient of more than 25 percent and not more than 35 percent; or

(c)

if impervious cover is transferred under Subsection (D), 30 percent.

(3)

For a lot included in a subdivision plat recorded before April 22, 1982, or a tract that is not required to be platted, impervious cover may not exceed:

(a)

35 percent, on a slope with a gradient of 15 percent or less;

(b)

10 percent, on a slope with a gradient of more than 15 percent and not more than 25 percent;

(c)

5 percent, on a slope with a gradient of more than 25 percent and not more than 35 percent; or

(d)

40 percent, if impervious cover is transferred under Subsection (D).

(D)

This subsection authorizes the transfer of impervious cover in a Lake Austin (LA) district.

(1)

Impervious cover may be transferred only:

(a)

between tracts within an LA district; and

(b)

from land with a gradient of 35 percent or less, to land with a gradient of 15 percent or less.

(2)

Land from which impervious cover is transferred must remain undisturbed, if the land exists in a natural condition, or be restored to a natural condition as prescribed by the Environmental Criteria Manual.

(3)

A transfer of impervious cover must be documented in a manner approved by the director and documented in the county deed records.

(E)

This subsection specifies additional development standards based on slope gradient in a Lake Austin (LA) district.

(1)

On a slope with a gradient of more than 15 percent:

(a)

vegetation must be restored with native vegetation, as prescribed by the Environmental Criteria Manual, if it is disturbed or removed as a result of construction; and

(b)

construction uphill or downhill from the slope must comply with the Environmental Criteria Manual.

(2)

On a slope with a gradient of more than 35 percent, development is prohibited except for the construction of a fence, driveway, road or utility that cannot be reasonably placed elsewhere, or a non-mechanized pedestrian facility, such as a foot path, sidewalk, or stairs.

(F)

In an LA district, a person may transfer impervious cover in accordance with this subsection.

(1)

Impervious cover may be transferred only:

(a)

between tracts within an LA district; and

(b)

from land with a gradient of 35 percent or less, to land with a gradient of 15 percent or less.

(2)

Land from which impervious cover is transferred may not be developed. The land must either remain undisturbed or be restored to a natural state.

(3)

A transfer of impervious cover must be described in a restrictive covenant that runs with the land, is approved by the city attorney, and is recorded in the county deed records.

Source: Section 13-2-631; Ord. 990225-70; Ord. 031211-11; Ord. No. 20140626-113, Pt. 2, 7-7-14 ; Ord. No. 20160922-048 , Pt. 1, 10-3-16.