Ask estate agents. They might not have photographs of empty property in their shop window, but that doesn’t mean they haven’t got some empty houses for sale. See our list of estate agents and letting agents.
Auction catalogues are a good place to find empty properties that are for sale. See our list of major auction houses in the UK.

The following websites specialise in empty properties:

Empro.co.uk
RenovateAlerts.com
Propertyrenovate.co.uk

The Empty Homes Agency

The Empty Homes Agency is an independent charity, which campaigns to highlight the waste of empty property in England and works with others to work out and promote solutions to bring empty property back into use.

www.emptyhomes.com

Building land for sale: More often than not building land already has a house on it. Often the house needs demolishing (knocking down) but sometimes it can be saved and rebuilt.

Propertyspy.com
Plotfinder.net
Self build ABC
Buildingplot.org

Keep your eyes open. About one in 20 homes in this country is empty. Once you start looking, you’ll see that empty houses are everywhere.