Most likely it is not accurate. We never directly measure a home on our own, and never make any legal representations for that reason. Many third party sites post square footage, and we have to rely on that information to help us estimate repair costs and rental rates, but we always understand it's a very flawed method, and you must as well. Even if it's listed on our website it is probably not accurate and only used internally for estimation purposes. We also use Matterport 3D scans which do highly accurate scans of most of our rentals. They are quite accurate on a room to room basis, but measuring square footage is complex and their method is not the same as real estate brokers use. We also never scan every room, closet, etc. So manual measurements that you might do using the scan directly are extremely accurate and can be used to roughly place furniture quite well. Auto generated measurements especially for the whole home will often be way off though.