800 Sq Ft ADU Floor Plan
This size gives you room to breathe without overwhelming your lot or your budget. If you're looking for the ideal mid-sized ADU, ADU floor plans 800 sq ft offer a perfect balance of space, comfort, and flexibility.
Starting from:
$ 150,000
Plan Overview
800 sq ft ADU Cost in California
2 bedroom
1 bathroom
0 garages
1 story
Benefits
Why Choose a
800
Square Foot
ADU Layout
Comfortable for Two Bedrooms
Fits a full layout easily
Great for Rental Income
More appeal for long-term tenants
Flexible Living Spaces
Room for office or guest room
Still Easy to Permit
Often meets local zoning without issue
How it Works
Steps to Build a
800
sq ft ADU
Building a small ADU might feel like a big step—but it’s easier than you think. Here’s a simple look at how it usually goes:
01
Check Local Rules
Review zoning and property guidelines
02
Pick Your Floor Plan
Choose prefab or design a custom layout
03
Submit for Permits
File plans and wait for city approval
04
Start Construction
Build foundation, frame, install systems
05
Interior Finishes
Add flooring, kitchen, bath, and details
06
Final Inspections
Wrap up and get ready to move in
Cost Estimate
An 800 sq ft ADU usually costs between $160,000 and $280,000, depending on your needs. It’s a cost-effective way to create more living space. It’s perfect for hosting guests, earning rental income, or giving families their own private area.
Get My Cost EstimateFAQ
Quick Answers
Is 800 sq ft enough for a family?
Yes, with the right floor plan.
Can I build this ADU tiny house on a small lot?
Often, yes. Check local setbacks.
Can an 800 sq ft ADU have two bathrooms?
Absolutely, depending on the layout.
Is this size (800 sq ft) good for renting?
Definitely. It's great for long-term tenants.
Ready to Unlock More Space?
Let’s create your perfect 800 sq ft ADU that matches your needs, style, and budget.
More information
Choosing from ADU floor plans 800 sq ft gives you a lot of flexibility. This size works beautifully as an ADU guest house, a full-time ADU tiny home, or a private space for aging parents. It’s also a great option for creating rental income while keeping the build manageable.
See more