The first step for this inspection item is the assesor office. Just call them. All title records online also show the square footage in accordance to the assessor records. If the records for the assessor shows a different square footage as opposed to the square footage on your appraisal record,then it is only possible that an addition was made without a permit. If you are buying an older property, built 78 or before in Laguna
Niguel, Laguna hills, Mission Viejo, etc.., some of these properties do not have updated records or correct informations in the assesor office, and some are even missing records in the city offices. To correct your property square footage you may call the assesor's office and request a representative to come in and remeasure your house and correct the assesor records. But this will cause your property value to be reassesed or potentially increase also.