IN sedo you can sell web sites also ,but your site should have some minimum requirement like follows
* Your website has its own navigational structure and content on various pages
* It is not a domain parking page or a page with advertising content only
* The website can be reached directly from the main URL – Content that can only be reached via subdomains or forwarding cannot be classified as a project.
* Neither the domain name nor the project content violates trademark or naming laws
* Websites of erotic nature must have a homepage that contains sufficient measures to protect minors.