Foundations are essential to securely transfer the load of the building to the ground. As a result, all structures need have suitable foundations (often concrete), which will vary from project to project based on the specifics of each situation. The building regulation requires that you must be able to withstand an earthquake with a magnitude of 7.0 or greater on the Richter scale. The building regulation also requires that you must be able to withstand wind speeds of 155 miles per hour or greater at the top of the structure. This is called the "minimal design load" and it's usually shown in pounds per square foot. You'll also need to make sure that the foundation meets other requirements such as having adequate drainage and being able to handle snow and ice loads. If you're building a new home, then the building regulation requires you to perform your own investigation into the suitability of the site for your needs and provide your own description of what kind of foundation should be used. However, if you hire someone else to build your home, then they'll be responsible for ensuring that they select a suitable foundation for the location. In conclusion, the building regulation requires that you must be able to withstand an earthquake of magnitude 7.0 or greater and wind speeds of 155 miles per hour or greater at the top of the structure.