Site Building is the process of creating a website using the Drupal content management system (CMS). It involves configuring the Drupal core and contributed modules, creating content types, fields, and views, and designing the overall look and feel of the website. Site Building is a key part of the Drupal development process, and is often done by a Drupal developer or site builder.

The Drupal core provides a number of tools to help with Site Building, including the Configuration Manager, which allows for easy configuration of core and contributed modules, and the Theme Manager, which allows for easy customization of the look and feel of the website. Additionally, there are a number of contributed modules that can be used to extend the functionality of the website, such as the Views module, which allows for the creation of custom lists and displays of content.

Site Building is an important part of the Drupal development process, and is often done by a Drupal developer or site builder. It involves configuring the Drupal core and contributed modules, creating content types, fields, and views, and designing the overall look and feel of the website. By taking the time to properly configure and customize the website, a Drupal developer or site builder can ensure that the website is optimized for performance and usability.