Building homes should feel possible, not overwhelming.
Horizon Line is Living Property Designs' answer to a simple question: what if adding a second home to your property was clear, affordable, and something you could explore on your own first?
Our story
Why we started Horizon Line
Arizona's HB 2928 opened the door for homeowners across the state to add accessory dwelling units. But for most people, the path to actually building one is still intimidating: unclear rules, custom-design price tags, and a lot of uncertainty before you know if it's even worth it.
We built the Horizon Line to change that — a system of thoughtfully designed, pre-approved ADU's paired with a digital tool that lets you see what fits your lot in minutes. No pressure, no guesswork, and no surprises.
Our approach
Four ideas that guide everything we do
Pre-approved plans
A focused set of proven, to-scale designs — the fastest, most affordable way to build well.
A digital tool
Check your lot and place a model yourself, before any sales conversation.
A transparent process
Real dimensions, clear steps, and honest expectations at every stage.
Copperstate Truss
Factory-engineered truss packages from a trusted Arizona manufacturer.
The team / Why us
Design expertise, grounded in local knowledge
Living Property Designs brings professional design and construction experience together with a deep understanding of Arizona lots, codes, and climate. We know what works here — and we've packaged that knowledge into every Horizon Line plan.
Our long-term vision
We want building an ADU to be as straightforward as ordering from a catalog — the way Sears once sold entire homes by mail. Repeatable, well-designed, and genuinely affordable, so more Arizona families can create income, house loved ones, and put their property to work. That's the future we're building toward, one Horizon Line home at a time.