Floor Plan Orientation & Scale

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Floor plans should feature a north point to show how the house is oriented – the direction it faces makes a big difference to heating, cooling and lighting the house. This could be drawn in any one of a number of ways, but it should be pretty obvious when you see it.

Where possible, other plans (e.g. site plans, drainage plans etc.) should also be oriented in the same way to help prevent any kind of unnecessary confusion.

Scales indicate relative sizes and distances.
Floor plans normally feature a written ratio (e.g. Scale 1:100) to demonstrate scale, as well as a block or granulated scale, which helps give a visual indication of sizes and distances. Measurements are almost always provided in millimetres – the exception being that metres are sometimes used to give a general idea of room sizes.

References like these ones tell the reader where to find more detail about a particular part of the plan.