They also have a limit to the square footage allowed for a detached structure.  

@Kyle NelsonCheck if local laws would allow you to bill tenants for utilities based on sq footage of their units.

For example, the SFR will always rent for more than a CRE unit on the same block, with the same square footage, fit and finish.Tenant quality: SFRs tend to attract a higher quality, more stable class of tenants than CRE units.

Buyer's loan officer called me yesterday and said the appraiser shows more finished square footage than county records due to the finished basement.

Make up some fancy calculation based on square footage if you feel like it :)Not sure how the abandoned property thing would work out.

When u do a search URSELF on craigslist, you may not take into consideration the square footage, etc.

Maybe the max amount relates to certain criteria like square footage or number of bathrooms.

The square footage is 2,565 but it is a pretty standard 3 story brick row home from the 1930's with an attached wall on one side and an alley on the other.

I am exploring the idea of adding square footage to my downtown duplex (above the crosstown in the West Side neighborhood). 

The extra square footage was not included in the purchase price.