Install a lawn sprinkler?
When installing a lawn sprinkler system, a permit is required for the backflow prevention between the sprinklers and the water supply. • Install a residential water heater? Yes, 2003 UPC requires a permit for new installation of any plumbing fixtures. • Build a retaining wall? Permits are required for retaining walls over 4 foot in height, when measured from the bottom of the footing to the top of the wall, and/or for walls that support a surcharge. Engineering by a Washington State registered engineer is required for all retaining walls being permitted. • Build a deck? All decks require a separate permit with the following two exceptions: • Exterior entry landings which are proportionate in size to the entry.The maximum size measured in square feet is the gross width of the entry squared including side glazing. Example: An entry door with sidelights measuring 60 inches wide, outside trim to outside trim, the porch may be a maximum of 25 square feet. • Platform or free standing decks 3
