The Dwelling Index
CostsRegulationsFinancingFloor PlansBuilder Guide
Start Planning
  1. Home
  2. Floor Plans

Floor Plans

Layouts from 400 to 1,200 sq ft for every lifestyle

Floor Plans

Detached ADU Floor Plans: 15 Layouts

Explore 15 practical detached ADU floor plans from 400 to 1,200 sq ft. Includes studio, 1-bed, and 2-bed layouts with dimensions.

7 min read
Read more
The Dwelling Index

The most trusted resource for homeowners building accessory dwelling units in the United States.

Topics

  • Costs & Budgeting
  • Regulations
  • Financing
  • Floor Plans
  • Builder Guide

Popular Guides

  • How Much Does an ADU Cost?
  • Prefab ADU Cost: Real Installed Prices
  • ADU Cost Per Square Foot
  • California ADU Laws 2025
  • ADU Financing Options
  • Best Prefab ADU Companies
  • Garage Conversion Guide
  • What Is a JADU?

Company

  • About
  • Editorial Standards
  • Privacy Policy
  • Terms of Use

© 2026 The Dwelling Index. All rights reserved.

For informational purposes only. Consult local authorities for specific regulations.