If the reason you are looking for it to be zoned commercial use is that you plan to run a business out of your home, you might check with the City to see if all home business activities are a problem that would require commercial usage. The Texas Board of Realtors rental forms have language in them prohibiting business activities in a residence, but most realtors, lots of investors, lots of writers, etc. do work from their homes and even have part time help working out of their homes. Most cities have 'caught up to the times' and realize people can work work from home via the Internet and are changing the old barriers about residential/commercial. It depends on the nature of the business and the potential for increase visitors, deliveries, etc. it might incur.