Your clear home base for a GuestADU project
The Owner-Builder Portal is where Horizon Line owners track status, return to site configuration, review findings, and move through deposit and plans — calmly, in one place.
Street number and name, city, and ZIP. We currently serve Arizona only — State is assumed AZ.
Who it is for
Built for homeowners who want clarity
Whether you are just exploring or already in motion, the portal is designed around the owner-builder path.
Homeowners exploring an ADU
See how a GuestADU could fit your lot and understand what comes next before you commit.
Owner-builders who want transparency
Follow a guided process with clear status, documents, and next steps — not a black box.
People who want clarity early
From first placement through review findings, deposit, and plans — know where you stand.
What you can do
Everything that matters for your project — in one place
The portal grows with your project. Early on you may only need status and placement; later, documents and next steps join the same home base.
Track project status
See where your project stands and what is waiting on you or the team.
Return to site configuration
Reopen your placement and refine the layout as your thinking evolves.
View review findings
Read updates and findings from Living Property Designs as they are shared.
Access key documents
Find released documents in one place when they are ready for you.
Understand deposit & next steps
Know what the deposit covers and what follows toward plans — without guesswork.
Schedule time with the team
Book conversations when you want guidance, not when a sales process dictates.
How it works
From first placement to guided next steps
You do not need an account to explore. The portal becomes your project home as review and follow-up begin.
Step 1: Explore fit with the Site Configuration tool
Enter your address, place a to-scale Horizon Line model on your lot, and try layouts at your own pace.
Step 2: Request a professional review
When a placement feels promising, send a review request from inside the tool so our team can take a look.
Step 3: Receive follow-up and findings
We respond with clear findings — what looks workable, what may need adjustment, and sensible options.
Step 4: Access your portal as the project moves forward
Your Owner-Builder Portal becomes the home base for status, updates, and released materials.
Step 5: Continue through deposit, plans, and guided next steps
Move forward when you are ready — with deposit, plans, and next actions explained in one place.
Why it exists
A calmer way to stay oriented
Building an ADU has enough complexity. Your project home base should not add more.
Reduce uncertainty
Replace scattered emails and unanswered questions with a calm, visible path.
Keep everything in one place
Status, placement, findings, and documents live together so you always know where to look.
Make the process transparent
See what is happening and what comes next — without overpromising outcomes you cannot control.
Support owner-builder success
Built for homeowners who want to stay informed and make clear decisions along the way.
What it is not
Clear boundaries, honest expectations
We would rather underpromise and stay useful than imply outcomes we cannot guarantee.
Not a substitute for permitting
Jurisdiction review and permits remain separate. The portal helps you prepare and stay organized — it does not approve a permit.
Not a generic file dump
Materials appear when they are relevant to your stage, so you are not digging through an unfiltered folder.
Not a contractor replacement
You still choose how construction is delivered. The portal supports your Horizon Line project home base — it does not replace a licensed builder.
Ready when you are
Try the Site Configuration tool on your lot, request a review from inside the tool when you are ready, or contact the team if you would rather talk first. Already have access? Sign in to the portal.