Instead of using a transit and tape measure, to position and stake corner points and locate building lines; batter boards, string lines and a plumb bob can be used. See figure 4. The setback stakes on the property lines can be measured with a transit, or batter boards can be placed outside of each property line so their strings cross over the setback stakes and each other at the building corner stakes. Measurement errors will be reduced if the batter boards are placed close to the property line. A large error at a batter board will result in a small error at building line.