The white area being roads and non-registered land (mainly stuff that hasn't sold for decades and roads).
It's great, I can find a unique owner for any bit of field I have a question about, the size of the plot, etc.
The downside is that to get a copy of the actual entry in the register (to see who owns it and any covenants on the property there are), you have to pay £3. The entire process is digital and automated, IMO it should be free, but I suppose it's not a terrible price.
