Prices around the redevelopment of Santana Row are an example of what will happen near the flea market. Prices strengthened in comparison to the overall market. Or let's say, they dropped less than the general market. Though, that comparison is not ideal in that the general market around Santana Row was predominantly single family homes and the new construction was high end condos. As for Berryessa - there will be a large influx of new single family homes to compete with the older stock of housing. This will make prices soft until Berryessa flea market homes are fully sold. Long term, this is good for your neighborhood, in the meantime, it will mean a lot of inventory to compete with. What are your short and long term plans with your housing? This will dictate which strategy you want to take.