Generally houses do not have deeds these days, those that have them, they are interesting but, I think, no longer legal.
Registering properties with the land registry came in 1925, but has only been compulsory since 1980, although most properties were registered when it was voluntary. Now that registering with the Land Registry is compulsory All properties now have all legal transactions, including buying selling, charges on the property (eg a mortgage) registered at the Land Registery.
The one exception would be if your home hadn't changed hands since 1980. There is a small chance that it might not yet be registered, in which case you might need your deeds.
bytheway Just speak to the solicitor you are using for the sale of your property and he will have all the relevant legal information about your house at his finger tips, so nothing to worry about.