There are 2 ways to view the recently sold houses, here's how to do it:
Method 1 - From Comparables
Go to "Deal Stacker" found on the left side panel
Under "Comparables-Residential" edit the full postcode and the criteria that you wish to see then click "Search"
Click "Last sold (Land reg)" and now you can see the list of recently sold houses with the postcode you searched and the criteria you've set.
Method 2 - From the property detail page