Is the flat does not differ in size?
Unfortunately, it is often the case that the units sold by developers differ in terms of the square metres mentioned in the offer. Arrangements concerning the metric area of the flat should be taken into account already at the stage of signing the developer's contract. In such an agreement, there must be clear information on how the property will be measured. After a meticulous review of the clause concerning the difference between the as-designed and the as-built metric area and the arrangements concerning the rights to which both parties are entitled, you can go to the acceptance of the flat with a calm head.
If the square metre differs from that agreed at the time of ordering, it is possible to receive a refund for each square metre that is missing. Even in the event of objections from the developer, you should not give up the money to which you are entitled, but rather consult a lawyer.