Site & Civil / Freestanding secondary residence
Detached accessory dwelling unit
Definition
An accessory dwelling unit built as a separate structure from the main house, often called a DADU or backyard cottage.
Fig. 244 — Detached accessory dwelling unit: schematic studyNOT TO SCALE
Illustrative study — Detached accessory dwelling unit · AI-generatedSAMPLE IMAGE
Structural & construction notes
In Nashville, DADUs are allowed only in certain zoning districts and overlays, with limits on size, height, and placement. Some are built over a garage.
Frequently Asked Questions
An educational reference. Project-specific design requires professional guidance.