Site & Civil / Secondary building
Accessory structure
Definition
A building on a lot that serves the main use without being a home itself, such as a detached garage, shed, or studio.
Fig. 245 — Accessory structure: schematic studyNOT TO SCALE
Illustrative study — Accessory structure · AI-generatedSAMPLE IMAGE
Structural & construction notes
Accessory structures usually have smaller setbacks and lower height limits than the main house. Adding a kitchen and bathroom typically turns one into an ADU with different rules.
Frequently Asked Questions
An educational reference. Project-specific design requires professional guidance.