September 10, 2026
Planning and Building a Junior Accessory Dwelling Unit
ADU Basics & Types
A junior accessory dwelling unit (JADU) is a smaller secondary living space typically created within an existing single-family home or as a modest addition. These units often share some of the main residence’s systems but include separate entry and essential living components such as a sleeping area, kitchenette, and bathroom facilities. The purpose of a JADU is to provide additional housing options that accommodate smaller households, aging family members, or rental opportunities while minimizi