Is there a code that a house of a certain size needs to be equipped with a certain type of electrical service?

Looking at a new house whose standard service is 100 amps. In order to upgrade any electric in the house - multiple high hats, electric ovens, christmas lights, pool, the home will certianly require more powerful service like 150 or 200a service.

Is this the builders or purchasers responsibility on a home this size?