If the only information you have is the location, you can't. However, If you give me the location, I can investigate recent sales in the area to arrive at a possible value. But of course every home is different, the home for sale may be one of only a few of that style and may not be anything like the recent homes sold in that area. The only way to know for sure is to drive by and check the type of home then search for comparable homes. Without more detail any estimate is probably going to be flawed. If you want my help, call me at 609.680.2326.