Looking for a compact, affordable, and efficient housing solution? A 400 sq ft ADU (Accessory Dwelling Unit) plan might be the perfect fit! Whether you’re building a backyard guest house, rental unit, or a cozy space for aging parents, a well-designed 400 sq ft ADU offers functionality without wasting space. And the best part? You can download the complete floor plan in PDF format right here.
What Is a 400 sq ft ADU?
A 400 square feet ADU is a small yet versatile structure that typically includes:
- 1 Bedroom
- 1 Bathroom
- A combined living and kitchen area
- Storage space or a small laundry zone
This size is ideal for singles, couples, or as a rental income property. It fits comfortably on most residential lots and often avoids the need for major zoning issues.
ample Layout Overview
Here’s what a smart 400 sq ft ADU layout typically includes:
| Area | Description |
|---|---|
| Living Room | Multi-purpose space for lounging or dining |
| Kitchenette | L-shaped or galley-style with basic appliances |
| Bedroom | Fits a queen-size bed and closet |
| Bathroom | Walk-in shower, toilet, and vanity |
| Entryway | Private entrance with porch or deck option |
400 sq ft ADU Plan PDF Download
We’ve prepared a sample 400 sq ft ADU floor plan for you to download and use as inspiration or submit to your builder.
👉 Click here to download the 400 sq ft ADU Plan PDF
(Note: Replace # with your actual download link)
This plan includes:
- Floor layout
- Room dimensions
- Suggested furniture placement
- Plumbing & electrical suggestions
Final Thoughts
A 400 sq ft ADU is a smart, sustainable solution for homeowners looking to expand their living space without breaking the bank. With our free downloadable plan, you’re one step closer to building your dream tiny home, rental unit, or guest house.