I'm sorry to hear that Trulia is misrepresenting your home, but I wouldn't worry about it too much. When the time comes that you're ready to sell your property, your listing agent will be looking at your house specifically, taking into account all of its assets and features. Any buyers agent who knows what they're doing will do the same, instead of relying on a number generated by Trulia.
If you would like a more accurate estimation of your homes value, I would be happy to take a look! You can contact me from my Profile page, or by emailing me at: