The required kVA (kilovolt ampere) for a house depends on several factors, such as the size of the house, the number of electrical appliances, and the desired capacity. In general, the power required for a typical home in the Netherlands is usually between 3 kVA and 10 kVA.

Here are some guidelines that may help you determine the required kVA for a house:

1. Calculate the estimated total power: Make a list of all electrical appliances and lighting you wish to use in your home. Note the power (expressed in watts or kilowatts) of each device. Add up the power of all devices used simultaneously to get an estimate of the total power needed.

2. Add a safety margin: Add a safety margin to the estimated total power to ensure that the power supply has enough capacity. A safety margin of 20-30% is usually recommended.

3. Consult an electrician: It is always advisable to consult a professional electrician to accurately determine the needed kVA. An electrician can evaluate the specific requirements of your home, taking into account factors such as the number of outlets, the nature of the equipment, and the expected electricity consumption.

Keep in mind that the required kVA can also vary depending on regional regulations and the specific situation of your home. An electrician can help you determine the right kVA level that complies with local regulations and your specific needs.