Usually any type of construction activity within the shoreline setback or within the waterside of the ordinary high water mark will require at least a shoreline exemption. Building or Replacing Docks On King County lakes, pier and dock construction requires either a shoreline exemption or substantial development permit. Generally, a shoreline exemption takes about 30-40 days for DDES to review while a shoreline substantial development permit may take up to 120 days for DDES to review. Bulkheading is not usually permitted on the water side of the ordinary high water mark. Setbacks A setback is the distance required from the closest part of a structure to the ordinary high water mark.
Building setbacks vary with the type of environment as defined by the shoreline management act.
For urban or rural environments, the setback is 20 feet. For conservancy environments, the setback is 50 feet and for natural environments, the setback is 100 feet. Accessory structures, such as cabanas, gazebos, or detached decks may be permitted within the required setback area subject to various limitations. As a property owner, you will need to consult with DDES to identify the specific setback requirements and shoreline development limitations associated with your specific parcel. Gravel A clearing and grading permit is required when clearing, filling, or excavating vegetation or other material within a sensitive area like a shoreline area, steep slope, wetland, lake, or stream.