Although title plans are drawn to a specific scale, you cannot use them to find the precise boundary location. This is because:
- measurements between features shown on the Ordnance Survey map may not match the exact distance measured between the same features on the ground
- the land may not be level
- you cannot be certain where features were measured from
- a feature may be shown as a straight line on the title plan but may not be straight on the ground
Some title plans or deed plans might refer to measurements about the boundary position but the title plan will still only show the general boundary.
As a general guide, the width of a line on a 1:1250 map roughly represents 0.3 metres and on a 1/2500 map, 0.6 metres. As such, scaled measurements cannot be relied upon. The black lines are used to show that natural or manmade features exist. These lines may represent:
- a wide hedge
- a narrow fence
- a single feature like a wall
- more than one feature, for example, a fence and a hedge that are close together
See
practice guide 40: supplement 1 - the basis of HM Land Registry plans for more information.