Hello llangatwg

Depends on when the house was built, but Land registry is a likely possibility, and for a fee will give the registered title plan and associated abstract of title. This will show the extent of the property and list former owners or occupiers. You could also try Electoral Roll but this would just say who lived there and not the Owner).
For older properties, there is the 1910 Valuation Office Survey (assessment of rateable value of land and property in England, Wales and Scotland). The records are held at The National Archives, Kew. From this you could find out who owned the house and who lived there. how much it was worth, etc around 1912 when the survey was completed.
Things like Trade and Street Directories (or more recently telephone directories) can help you to find inhabitants.
For even older properties, there are Tithe Apportionment Survey by Parish, Estate records, Land Tax records, and of course Census records.
Modified - another thread on Land Registry:
http://www.rootschat.com/forum/index.php/topic,528211.0.htmlKind Regards
Morgan