Likely this home will have appeal to a first time home buyer. That usually means a FHA appraisal. From an appraisal aspect the converted area will have less value per square footage than living area if it is not vented for heating and cooling. Also of appeal is if the garage door has been removed and a permanent wall is installed of the same construction materials as the other walls. The flow to that room may be non-appealing ..... all of which would drop the value not add to it. Oh and permits would be a concern as well if the room addition was not permited for the work done.
Finding a comparable in the neighborhood that has had the same work done may be an issue. Being the different home that is for sale (either bigger or smaller in some cases) is not what you are looking for in listing a home. Being desireable to the largest audience is the goal.
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20860 N. Tatum Blvd, Suite 160
Phoenix, AZ 85050-4277
602 277-3800 w
602 631-9788 f
602 524-2401 c
BK # 0910057 NMLS LO ID # 284875