From their site:
Curbplaces is a real estate data website, built for Charlottesville, VA. All data is taken from publicly available websites and databases.
Curbplaces is a project of Cloudbrain, LLC, a web development firm based in Charlottesville. This project is a work-in-progress, so please be kind as we continue to improve the website. We would love to hear any suggestions you may have.
As of yet, I haven’t figured out from where they are pulling their data, but they seem to be affiliated with House Values. They are competing in a tough field filling up fast. Zillow, Cyberhomes, Propsmart, Realestateabc, etc. … More to come …
Update 5/8/2007: Having played with it some more, I have yet to find how to zoom in/zoom out. Curbplaces is intriguing, if only because they are a local startup, running WordPress.