Milwaukie's older lots come with uneven ground, mature trees and old fence lines that wandered over the years. A new fence here starts by finding the real line and measuring height the way the city does.
Milwaukie's code splits a lot into two zones. In the front yard, a fence stops at 42 inches. On the side, street-side and rear lines it can reach 6 feet. Flag lots, tucked behind other houses with a long drive, are the exception and may have 6 feet in the front yard too. A Milwaukie fence installation on a corner lot often uses both heights along one street.
How the city measures matters on older, uneven ground. Height is taken to the highest ground within 1 foot of the fence. Where a line runs over a bump or a root swell, that high point sets the limit, so we survey the grade along the run and step the fence to keep every section legal.
Close to streets and driveways the clear vision rule takes over: fences, walls and shrubs stay at 30 inches above the curb, or 36 inches above street level where there's no curb. Barbed, razor and electric wire aren't allowed in residential yards, so pet and garden fences rely on mesh and solid gates instead.