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prior to the granting of any permit. (see below for information on the shore impact zone) • Staff recommends incorporating the DNR's grading regulations into the shoreland ordinance. 2. Measuring Lot Setbacks a. "String line" setbacks — applies to new home construction and reconstruction • This provision is where the City may require a principal structure to be set back greater than the standard shore setback if the adjacent homes exceed the standard shore setback. For example, if the homes on either side of a lot are 60 feet from the lake, the City could require the new home to be 60 feet back from the lake instead of the standard 50 feet. This is meant to preserve views of existing homes that are farther from the lake from being blocked by new homes that could be closer to the lake. It is called a string line setback because it would be like taking a string from the two adjacent lots to determine the setback of the middle lot. • The DNR includes a similar provision though the language is different. • While the goal of this provision is to protect site lines, the application of the provision is difficult and sometimes controversial. The provision either needs to be reworded or removed. b. Structures/decks, accessory structures, etc • The City and DNR have matching setbacks for structures from the Ordinary High Water Mark (OHW). No changes are needed for the setback numbers. • The City does not address decks in its shoreland ordinance. The DNR classifies an attached deck as part of the principal structure and a detached deck (i.e. gazebo) as a water -orientated accessory structure. Decks are subject to the same size, design and setback requirements as structures or water - orientated accessory structures depending on whether it is attached or detached. • The City does not allow water -orientated accessory structures, which means people could not construct structure in the lake setback area. While the DNR model ordinance includes provisions for water -oriented accessory structures, they often recommend that cities do not allow them since it increases impervious surface in the shoreland setback. • Staff recommends clarifying the City's ordinance to note that all structures and patios, including decks and storage buildings, be outside the shoreland setback. There are separate provisions for stairs, landings, and walkways. 3. Stairs, landings and walkways • The City does not address stairs, landings or walkways in its shoreland management ordinance. The DNR has model regulations for stairs, landings and walkways. Staff recommends adopting the DNR's model ordinance for stairs, landings, and walkways. City of Arden Hills Planning Commission Meeting for February 4, 2009 I WhdocsllahlAHdatalPlanninglPlanning Cases 12009109-003 Shoreland Preservation Ordinance 1020409 -PC report - Shoreland Regulation Ordinance.doc Page 3 of 6