Mill Creek four-foot wall line
Mill Creek’s permit flyer says a permit is needed for rockeries or retaining walls over four feet in height. It exempts a retaining wall not over four feet, with its height taken from the footing’s base to the wall’s top edge, unless the wall supports a surcharge, meaning a load imposing lateral pressure, or impounds hazardous materials. The flyer does not say whether a rockery of four feet or less qualifies for that exemption, so we ask the permit counter before one is designed. The right-of-way rule reaches further than the wall line. A permit covers any activity that may restrict, limit, or impact public use of the right-of-way, and the city’s examples include driveway replacement or repair and new or replaced sidewalk. The flyer says its information may not be complete, so we check each wall and drive against the current code before a quote is issued.
Nearby, we also build in Everett, Lynnwood, Mukilteo, and Bothell, and we serve the rest of western Washington.