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Shoreline Master Programs

Substantial development permits

Substantial development permits (“SDPs”) are required for all developments (unless specifically exempt) that meet the legal definition of "substantial development."

SDPs are reviewed and processed by local governments and subsequently sent to Ecology for filing.

Under WAC 173-27-150, substantial development permits cannot be approved unless they are consistent with policies and procedures of the Shoreline Management Act, Ecology rules, and the local master program.

Local government may condition the approval of permits if needed to ensure consistency of the project with the act and the local master program.

In addition, state rules under WAC 173-27-140 prohibit issuance of permits for any new or expanded building or structure of more than thirty-five feet above average grade level on shorelines of the state that will obstruct the view of a substantial number of residences on areas adjoining such shorelines, except where a master program does not prohibit the same and then only when overriding considerations of the public interest will be served.

For more information

Contact Ecology's shoreline permit reviewer serving your town, city, or county.