The message lgate.org
from "Lawrence Zarb" contains these words:

I intend to build a garage on the side of my semi detached house.

Who would be best to draw up the plans, an architect, civil engineer or
someone else?

Google sketch-up. They're quite happy with DIY plans so long as they
have all the right dimensions on.

--
Skipweasel
Pay no attention to that man behind the curtain.