I assume you meant to value your house at �260,000. The only cost that I can think of (for sale only) will be the standard professional charges by your solicitor for the sale of a property which could be approx. �550 + VAT(�631.00).
However it could be less or more depending on which solicitor you use.
There is a seperate range of charges for the purchase of a property.
Just visit any solicitors office and ask or go to an on-line solicitor.