The "GPDO Part 1 (All Classes) - Visual Guide" document on this website has been significantly expanded, so that it now includes a set of illustrations for each of the following:
- Typical 1930s Council house with a rectangular footprint.
- Typical Victorian house with a two-storey rear projection (i.e. an "outrigger").
Below are two example screenshots from the above document:
Note: the full version of the above document (which is only accessible by members) contains both of the above sets of illustrations, whilst the free version of the above document (which is accessible by anyone) contains only the first of the above sets of illustrations.