Unfortunately we can't really give you a good estimate of value without knowing more about the property in question.
I can though share some information with you. The median price of homes sold in 85307 over the past 3 months were around $75/sqft. This takes in consideration foreclosures, short sales and other distressed properties. A typical home in better than average condition can sell for significantly more than the median price.
If you would like an estimate for your home you can go to my website, fill a quick survey and I will send you a Property Valuation Report - no strings attached:
Jose Dias, REALTOR | (623) 418-5700 | Jose@MyFirstHouseAZ.com | http://www.MyFirstHouseAZ.com