The physical boundaries of a unit constructed in substantial accordance with the original survey map and set of plans thereof become its boundaries rather than the metes and bounds expressed in the survey map or plans, regardless of settling or lateral movement of the building or minor variance between boundaries shown on the survey map or plans and those of the building. This section does not relieve a declarant or any other person of liability for failure to adhere to the survey map and plans.
RCW 64.34.252