House numbers could be marked on houses using deferent
ways:
♦ Tagged metals
♦ Number written on pieces of metal sheets
♦ Paints on doors, windows, on frames or walls.
♦ Using markers
♦ Using chalks
N.B: Nevertheless, it is important that the number marks are
permanent or long-lasting.
The step of numbering house should be in such a way that it
will lead from one house hold or group of house holds to the
next minimized walking.
For a systematic is completed (in the office after the field work
is over). This helps to organization the assignment of numbers
of houses should be planned after the sketch map plan
blocks, zones or clusters of houses for ease of tracing.