Energy certificate: obligation, types and costs

When do you need an energy certificate and what is the difference between demand- and consumption-based certificates?

## When is it mandatory?

For sale and rental the certificate must be presented at the viewing at the latest.

## Demand or consumption?

The **demand certificate** is calculated from the building fabric; the **consumption certificate** uses the actual consumption of the last three years.

## Costs

Typically €80–150 for consumption and €300–600 for demand certificates.