Purchasing a home that does not reflect correct sq ft

[Deanna Daily]

Hi all!

I am in the San Antonio market and hoping someone can help me with this question. I am looking to make an offer on a home that is listed on the tax records as a 1335 sq ft but upon measuring, it is actually much larger closer to 1700. This home is a foreclosure so there is no seller disclosure to me and therefore, no information as to when the additions were done. However, they were clearly done in the 70's. I am happy to get a larger house but my concern is that once it goes on the market after rehab, the appraiser will catch the discrepancy causing a domino effect of issues. Has anyone dealt with this issue in San Antonio in particular? How is the building department to deal with here? I am new to the area and have not dealt with the city as of yet. Is it possible they would grandfather the changes? Thanks!