Washington County, MN Building Setbacks & Zoning: Structure Height Limits (2026)

' The chapter's own definitions section spells out how that height is measured: Section 3(13) defines 'Height of Building' as the vertical distance above a reference datum measured to the highest point of the coping of a flat roof, the deck line of a mansard roof, or the average height of the highest gable of a pitched or hipped roof, with the datum set from the highest adjoining sidewalk or ground surface within five feet of the exterior wall, or ten feet above the lowest grade on steeper lots.

The 35-foot cap applies on top of the chapter's other structure standards for shoreland lots, including setbacks from the ordinary high water level that run from 50 to 200 feet depending on whether the waterbody is classified Natural Environment, Recreational Development or General Development, plus a 30-foot bluffline setback that applies regardless of classification. 1 requires the Zoning Administrator to verify that Chapter Six's requirements, including the height limit, have been met and to issue a Certificate of Compliance; the code states plainly that any use, arrangement, or construction not consistent with a required permit is deemed a violation of the chapter. 2(3) weighs whether the lot is used seasonally or year-round and whether the septic system needs upgrading before granting relief.