Minimum lot size.
The minimum lot size shall be governed by the base zoning district.
The minimum net project area for each lot shall be at least one acre.
If the lot is not served by a public sewer or common system, the lot shall have adequate room for one single-family residence and two private on-site wastewater treatment systems (POWTS).
Minimum lot width.
In the rural residential management zone, the minimum lot width shall be 200 feet measured at the building line and at the side of the lot nearest the river.
In the conservation management zone, the minimum lot width shall be 250 feet measured at the building line and at the side of the lot nearest the river.
Structure height. The maximum structure height shall be measured between the average ground elevation and the uppermost point of the structure, excluding chimneys.
The maximum height for principal and accessory structures in the rural residential management zone shall be 35 feet.
The maximum height for principal and accessory structures in the conservation management zone shall be 25 feet.
Structure setbacks. On structures existing prior to the effective date of this chapter, all setbacks shall be measured on a horizontal plane from the foundation of the structure at the point of the structure that is nearest the ordinary high-water mark (OHWM), bluffline, or property line.
On modifications or additions to existing structures, roof overhangs shall not encroach within the required setbacks more than three feet, and any cantilevered portions of the structure must meet the required setbacks.
On new structures constructed after the effective date of this chapter, all setbacks shall be measured on a horizontal plane from the roof overhang and any cantilevered portions of the structure at the point of the structure that is nearest the OHWM, bluffline, or property line.
All structures except piers, wharves, structural erosion control measures, stairways, and lifts shall meet the following:
OHWM setback: at least 200 feet from the OHWM of the Lower St. Croix River.
Bluffline setback: at least 100 feet from the bluffline in the rural residential management zone, and 200 feet from the bluffline in the conservation management zone.
Structures that do not meet the setback may be permitted within the bluffline setback area if they are set back at least 40 feet from the bluffline and meet all of the following standards:
The structure does not protrude above the bluffline as viewed from at or near the midline of the river or from 250 feet riverward from the OHWM, whichever is less.
The structure is not located in a slope preservation zone.
The structure utilizes building materials that are earthtone in color and of a nonreflective nature, except that windows may be made of ordinary window glass or nonreflective glass but may not be made of glass designed to reflect more light than ordinary window glass.
The structure is visually inconspicuous.
Side yard setback: at least 25 feet from all exterior lot lines.
Dimensional standards summarized.