Using a Disti laser measure I have checked a large number of properties and have so far found that the measurements all match the specifications in the contracts which are actually based on the square metres for the room as they do not publish actual room sizes
We have also been measureing the plot sizes on Villas and one we checked that had previously checked by the valuer we found that he under calculated by more than 50 d1 mts, as I used a trundle wheel which is more accurate
Often the problem is that people don't undertstand how to correctky measure the room and you have to calculate in the wardrobes and halls
I have also measured many windows and agian not found any variance between types of properties as these fran es are pre-manufactured nad fixed so the width and drop cannot vary but of course there are many different of windows and many differenbt styles of apartments , different Laurels Tilos etc
In Spain a developer can legally reduce the property and plot size by up to 10% and not havre to compensate the buyer, outragous I know, plus vary the surroundings
If you read the article they were able to cancel the contract based on the failure to deliver the property based on the delivery dates using the BG not on rrom sizes or views etc