Clarity before complexity
Start with the few decisions that shape everything else, then reveal detail at the right moment.
ABOUT ADU.APP
A clearer starting point for your ADU.
ADU.app brings together educational guides, illustrative design ideas and a transparent cost calculator to help homeowners prepare for local planning and construction conversations.
A
THE VISION
Understand the choices before committing to a project.
ADU projects sit at the intersection of housing, family, investment, design, construction, regulation, and local expertise. That makes the category valuable—but difficult to navigate.
Use the site to compare ADU approaches, build a first budget, explore design concepts and find official planning resources. Local agencies determine what your property allows, and local professionals supply project-specific designs and quotes.
Explore the learning journeyPRODUCT PRINCIPLES
Built to earn attention—and trust.
Clear answers, visible assumptions, primary sources and honest limits are the foundation of useful ADU research.
Visual by default
Help people understand space, cost, and process through imagery, interaction, and plain language.
Education over certainty
Show what to investigate without pretending a general website can replace parcel-specific advice.
A flexible platform
Create room for calculators, project inspiration, learning tools, regulation research, and future services.
EDITORIAL STANDARD
Who writes and reviews ADU.app?
ADU.app publishes these educational guides and planning tools. The content includes AI-assisted writing, source research and calculation checks; it does not carry a named independent professional review.
No architectural, engineering, legal, appraisal or contractor credentials are claimed for the publisher. Confirm property-specific decisions with the responsible agency and qualified local professionals.
Publisher
Translate ADU planning topics into concise answers, comparison tools and practical checklists for homeowners.
What is checked
Check source authority, date freshness, visible claims, calculator formulas and alignment between page content and structured data.
Corrections
Found an error? Send the page URL, the statement and a supporting source through the contact page. Material corrections should update the visible content, page date and structured data together.
Original cost-model data and formulas are published on the methodology page. Official agencies are cited as sources and are not presented as endorsers.
CITE OR COLLABORATE
Transparent models you can inspect.
The cost comparison publishes editorial assumptions and formulas. It is not a survey of contractor prices. Builders, architects and housing organizations can suggest corrections or contribute documented local data.
A CATEGORY-DEFINING PLATFORM
Short name. Clear meaning. Room to grow.
The domain naturally supports a focused consumer brand, a project-planning application, an educational publisher, a design marketplace, or a software platform for the ADU ecosystem.
EducationPlanning toolsDesign discoveryRegulation researchFuture services
LET'S TALK ABOUT ADU.APP