Query the possibilities

Here’s an example of some of the work I’m doing on my GIS project. Start with all the tax lots in Portland, query all lots zoned “single family residence”, then query those with a total value (property and building) of $175,000 to $225,000, then query those results for homes built before 1950, then query those results for lot size greater than 4400 sq. ft., then query those results for building square footage for those greater than 1500 sq. ft. Here’s what you get:

All Portland Taxlots After the fall

Kind of startling, huh? I wasn’t going to put streets in it originally, but there’s no way to tell where the second image is otherwise.