The default layer on planweb will look like this.
You should use the key on the right hand side to understand the layers (different colours on the maps)
To access the key, press the stack of square in the top right hand corner.
At a glance this map will show:
Red if a home is not Bron Afon
Green if a home is Bron Afon
Purple on land that is BA*
Yellow on land that is TCBC *
The small rectangle blocks are garages.
The dark red shows a garage is sold.
The lighter red shows a garage is BA.
*Please remember to check the adopted highways map for assurance