You're right about the error. The parcel is 9.48 acres. Unfortunately, despite the Realty Trac listing on Trulia, it is not for sale today. I used to work with the listing agent on the last sale when we were both at different firms than today, and I'd be happy to call him to see what the story is. The $41,000 figure is probably grossly misleading, since it sold in 2005 for $650,000. Values have declined since then but not by that much.
For an explanation of RealtyTrac, see this blog post by my fellow Windermere agent Carl Medford.
If you'd like me to pursue more real information, please call or send me an email (click on my picture for contact information) and I'll find out from my former colleague.