Compact and Efficient One-Story ADU – 400 Sq Ft Driftwood Design

Driftwood is a 400 sq ft ADU floor plan featuring 1 bedroom and 1 full bathroom in a thoughtfully designed single-story layout. This 1-bedroom ADU plan is ideal for homeowners seeking a functional, compact, and modern accessory dwelling unit for guest stays, rental income, or minimalist living.

Floor Plan Overview

• Total Living Space: 400 sq ft
• Dimensions: 12′ x 20′ (rectangular footprint)
• Stories: Single-story for convenient access and simple construction

The open-concept layout integrates the kitchen, dining area, and living space into a cohesive environment that maximizes every square foot. The bedroom is efficiently sized to provide comfort, privacy, and flexibility for rest or remote work.

Key Features of This 1-Bedroom ADU Plan

• One bedroom: practical and comfortable for daily use or guest accommodation
• One full bathroom: designed for efficient use of space
• Open living space: seamless connection of kitchen, dining, and living areas
• Compact footprint: 400 sq ft of intelligently organized space
• Ample natural light: wide windows enhance the airy, welcoming feel

Why Choose the Driftwood ADU Plan?

This 400 sq ft single-story ADU demonstrates that small spaces can be functional, comfortable, and stylish. With a smart layout, bright interiors, and efficient room placement, Driftwood is a versatile solution for backyard housing, guest suites, or small rental units. Perfect for homeowners looking to maximize their property with a thoughtfully designed ADU floor plan without sacrificing livability.