Stormlight House was a house in the Proxima System, located on an asteroid. It was a fairly typical posh manor house. It was owned by Wesley Sparks, who had links with the Tenth Doctor's companion Majenta Pryce. Staff included Owl and Violet. The only way to get to Stormlight House was by transmat. (COMIC: Mortal Beloved)
Intersol, an organisation looking for Majenta Pryce, had a lead here on where they could find her. It ultimately went cold. (COMIC: The Crimson Hand)