900 Sq Ft ADU Floor Plan
At ADU Scale, we create layouts that maximize comfort and function, offering the space you need for a true home experience. With 900 square feet, you have room for a full lifestyle - without the cost of a full home build.
Starting from:
$ 200,000
Plan Overview
900 sq ft ADU Cost in California
2 bedroom
1 bathroom
0 garages
1 story
Benefits
Why Choose a
900
Square Foot
ADU Layout
Room for Two Bedrooms
Plenty of space for family or guests
Full-Size Kitchen & Living Area
Feel like you’re in a full home
Perfect Rental Opportunity
Attracts long-term tenants or Airbnb stays
Multigenerational Living Space
Private, flexible, and comfortable
How it Works
Steps to Build a
900
sq ft ADU
We’re with you from day one to move-in, making the ADU process simple and stress-free.
01
Free Consultation
Talk through your goals and property options
02
Custom Floor Plan Design
Designed 900 sq ft ADU floor plan made to fit your space
03
Permitting & Paperwork
We manage all city approvals and documentation
04
Site Prep & Utilities
Getting your lot ready for a smooth build
05
Construction & Quality Checks
Build your ADU with high-quality materials
06
Final Touches & Move-In
Inspections, finishing touches, and keys in hand
Cost Estimate
A 900 sq ft ADU in California can cost between $200,000 and $300,000. Smaller ADUs usually cost less than $150,000. A 900 sq ft ADU gives you more space and flexibility but costs a bit more, still at a fair price.
Get My Cost EstimateFAQ
Quick Answers
Can I build a 900 sq ft ADU in my backyard?
Yes, most cities in California allow it, depending on your lot size.
Is 900 sq ft enough for a family?
Yes, it can fit two bedrooms, a full kitchen, and more.
Can this small ADU house be rented out?
Definitely. Many use it for long-term tenants or Airbnb.
What can fit in 900 sq ft?
A full home setup: 2 beds, 1-2 baths, kitchen, and living room.
Ready to Unlock More Space?
Let’s get started on your 900 sq ft ADU - we’re here to help every step of the way.
More information
What makes this size so popular? A 900 sq ft ADU floor plan gives you plenty of room to live comfortably while staying efficient and affordable. Whether you want a full-time rental, an ADU guest house, or a second home for a family, this size offers a good balance of space and ease.
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