PopularThe Smarter Way to Plan Your ADU
Small Homes.
Big Possibilities.
Find ADU plans that fit your property, match your goals, and help you understand what comes next before you build.
Browse All Plans
Match by Property
Know the Rules
Save & Compare
Build Confidently
Designed for Real Life
Discover plans built around flexibility, function, and the way you actually want to use your space.
Property-First Planning
Start with your property and narrow down plans that make sense.
Local ADU Research
Understand state and local rules before moving forward.
Save & Compare
Keep your favorite plans together and compare the details.
Plan With Confidence
Know what is included, what needs verification, and what comes next.
Explore ADU Plans
Find the right ADU floor plan for your project.
Browse accessory dwelling unit plans by bedroom count, size, building type, and architectural style, then compare the designs that make the most sense for your property.
ADU Plans
1 Bedroom ADU Plans
Efficient layouts for guest houses, rentals, backyard cottages, and independent living.
ADU Plans
2 Bedroom ADU Plans
Flexible ADU floor plans for families, rentals, guests, and multigenerational living.
ADU Plans
Small ADU Plans
Compact designs for smaller footprints, tighter lots, and efficient backyard living.
ADU Plans
Garage ADU Plans
Combine useful garage space with independent living areas above or alongside it.
ADU Plans
Modern ADU Plans
Contemporary accessory dwelling unit plans with clean lines and efficient layouts.
Popular ADU Plans
Explore ADU Plans
Start with professionally designed plans and narrow your options by size, layout, style, and the way you want to use your ADU.
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SpaciousHave a size in mind?
Jump straight to plans that match your target footprint.
Find Your Fit
What are you building your ADU for?
Your reason for building changes the plan you should choose. Start with your goal and we'll help narrow down the designs that make the most sense.
Build an Income-Producing ADU
Rental Income
Turn unused space on your property into a flexible rental that can generate monthly income and long-term value.
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Keep Family Close
Aging Parents
Create a comfortable home for parents or relatives that keeps everyone nearby while preserving privacy and independence.
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Family
Flexible living space for children, relatives, or changing family needs.
Guests
Give visitors a private, comfortable place that feels like home.
Home Office
Separate work from home with a dedicated backyard workspace.
Downsizing
Live smaller, simplify your space, and stay connected to family.
Not sure which direction fits your property or goals? Answer a few questions and we'll help narrow it down.
Start My SearchHow It Works
From property to plan in four simple steps.
Best ADU Plans helps you move from early research to a plan you can confidently take to the next stage of your project.
Start Your Search01
Enter Your Property
Tell us where you want to build and what you want your ADU to accomplish.
02
Get Your Matches
Explore plans that align with your space, goals, and preferred layout.
03
Compare & Customize
Save favorites, compare options, and request plan modifications when needed.
04
Build With Confidence
Understand what comes next and move toward permitting and construction.
Learn Before You Build
The plan is only part of the project.
Explore practical guidance around local rules, project costs, planning decisions, and plan modifications before construction begins.
Explore All ResourcesNational Guidance. Local Detail.
ADU rules change when your address changes.
Where you build can affect size limits, setbacks, parking, utilities, occupancy, permitting, and even whether an ADU is allowed. Start with our available state and local guides, then verify the requirements for your specific property.
Available State Guides
Best ADU Plans provides educational guidance. Requirements can vary by jurisdiction, zoning district, and individual property. Always confirm current requirements with the applicable local authority.
ADU Location Intelligence
Understand where you're building.
Your Property
Location changes
what you need to know
Example Local Guide
Lynchburg, Virginia
Local Guide Available
State and local context
Known size and use considerations
Property-specific items to verify
Relevant planning resources
Virginia Local Guides
Explore the local guides currently available in the marketplace.
Why Best ADU Plans
More than a place to buy a floor plan.
We're building the tools and guidance around the plan so you can make a better decision before your project gets expensive.
01
Clear Plan Details
Understand the size, layout, features, pricing, and what is included before choosing a plan.
02
Upfront Pricing
See plan pricing clearly and understand when modifications or additional services may be needed.
03
Property-First Search
Narrow your options around property dimensions, goals, bedrooms, features, and intended use.
04
Guidance Along the Way
Use planning resources, local rule research, and modification services to understand what comes next.
Small Homes. Big Possibilities.
Find the ADU plan that fits what comes next.
Start with your property and goals, or explore the full collection of ADU plans available today.
Start With Your Property
Tell us what you're working with and narrow down your options.