A JADU (Junior Accessory Dwelling Unit) is a specific type of accessory dwelling unit (ADU) in California. It is a small, self-contained living unit that is created within an existing single-family home. The main distinction between a JADU and other types of ADUs is that a JADU is created within the existing space of the primary residence, typically by converting a part of the house, such as a bedroom or a portion of the living area.

Title 24 refers to a set of building energy efficiency standards in the state of California, United States. These standards are established by the California Energy Commission (CEC) and are part of the California Code of Regulations.

CALGreen – In an effort to preserve water quality, these techniques aim to reduce storm water runoff volume and rate. The discharge of surface water contaminants from the project site into receiving waterways can be avoided by making sure that there is no detectable increase.

CALGreen – To limit thermal bridging between materials that come into contact with steel framing and to reduce the quantity of steel that must be utilized in a steel framing system.

CALGreen – To maximize open space inside a development and to promote the use of plants whenever it is possible. The inclusion of these clauses can enhance groundwater recharge, preserve open space and wildlife habitats, and increase the carbon sink effect, which lowers greenhouse gas emissions.