The Main Phases of Building a Custom Home in Southern Utah

by Madsen Homes

If you've never built a home before, the process can feel like a black box. You know there's a beginning and an end, but everything in between is a little unclear. This post is here to change that.

Building a custom home in Southern Utah follows a fairly consistent sequence, and understanding that sequence ahead of time makes the whole experience feel more manageable. You'll know what's coming, what's expected of you at each stage, and roughly where you are in the process at any given point.

Every builder runs their process a little differently. What follows is how we do it at Madsen Homes. The broad phases will look similar across most custom builders, but the details, how design and budget are sequenced, how selections are handled, and how clients are kept informed, vary from one company to the next. If you're talking to multiple builders, it's worth asking each of them to walk you through their specific process.

Here's how it works with us, from the first conversation to move-in day.

Phase 1: Initial Consultation and General Budget

Every build starts with a conversation. Before any design work begins, your builder needs to understand what you're trying to build and what you're working with financially.

At this stage, you're not nailing down exact numbers. You're establishing a general sense of budget and scope so that the design phase that follows can be grounded in reality. A builder who skips this step and jumps straight into design is setting you up for a painful budget conversation later.

This is also where you start to get a feel for whether the builder is the right fit. How do they communicate? Do they ask good questions? Do they give you straight answers? The relationship you build here carries through every phase that follows.

What this feels like for you: A conversation, not a commitment. Come with questions and a general sense of what you want. You don't need all the answers yet.

Phase 2: Design and Selections

This is where the home starts to take shape, and it's a bigger phase than most first-time builders expect.

Design and selections happen before a formal budget is finalized. That's intentional. The decisions you make during this phase, floor plan, layout, finishes, fixtures, materials, are what allow your builder to build an accurate budget. A budget built before selections are made is really just a guess.

At Madsen Homes, we work as a design-build company, which means we guide you through the entire selection process. You'll work through every category of the home: cabinets, countertops, flooring, tile, plumbing fixtures, lighting, hardware, paint, exterior materials, and more. Each decision gets documented in a design workbook that becomes the reference point for everything that follows.

This phase takes time, and how much time depends largely on you. Clients who come in with a clear sense of direction and make decisions efficiently move through it faster. Clients who are less certain, or who want to explore more options, take longer. Neither is wrong. The important thing is that every decision is made before ground breaks.

What this feels like for you: A lot of decision-making over a sustained period. It can feel overwhelming at times, but this is the phase where you have the most control. The decisions you make here are the ones you'll live with, so it's worth the effort.

Phase 3: Permitting and Pre-Construction

Once design and selections are finalized and the budget is signed off on, the project moves into permitting and pre-construction planning.

Your builder submits permit applications to the relevant city or jurisdiction. Southern Utah has several separate permitting jurisdictions, including St. George, Hurricane, Washington City, Ivins, and Washington County, each with its own process and timeline. For most straightforward projects in Washington County, permitting currently runs around two to four weeks.

If your lot is in a community with an Architectural Control Committee, such as Black Desert or Sand Hollow, that review happens here as well, before a permit is submitted or construction begins. ACC review timelines vary by community and by the complexity of the home. Simple plans in communities with streamlined processes can move through in a couple of weeks. More complex homes or communities with detailed review requirements can take longer. If changes are made to the plans after initial submission, they typically go back through review, which adds time.

This phase also includes finalizing subcontractor scheduling, confirming material lead times, and making sure everything is in place for a smooth start to construction.

What this feels like for you: A bit of a waiting period. Most of the active work is happening on the builder's side. Stay available in case questions come up, and use this time to start thinking through anything that hasn't been finalized yet, like landscaping.

Phase 4: Site Work and Foundation

Construction begins with the lot itself. Before a foundation goes in, the site has to be prepared.

This includes clearing and grading the land, excavating for the foundation, and addressing any site conditions that weren't fully predictable beforehand. In Southern Utah, this can mean encountering lava rock or caliche beneath the surface, which may require additional excavation work, rock chipping, or blasting depending on the depth and volume. It can also mean soil conditions that require over-excavating and backfilling with engineered material. These situations add time and cost, and they're part of what makes lot selection and evaluation important before you commit to a piece of land.

Once the site is prepared, the foundation goes in. The foundation type depends on the design of the home and the conditions of the lot.

Southern Utah's climate means construction can happen year-round, which is a genuine advantage over most of the country. Summer monsoon season can occasionally affect exterior site work, but it's rarely a significant disruption.

What this feels like for you: The build is officially underway. It may not look like much yet, but the work happening now is what everything else is built on. Literally.

Phase 5: Framing and Mechanicals

Framing is when the home starts to look like a home. Walls go up, the roof takes shape, and the floor plan you spent so much time designing in Phase 2 becomes something you can actually walk through.

After framing, the mechanical trades move in: electrical, plumbing, and HVAC. Wiring gets run, pipes get placed, ductwork goes in. This is also when any special backing or blocking gets installed, for future shelving, grab bars, TV mounts, or anything else that needs solid wall support behind the drywall.

This phase ends with what we call the six-way walkthrough. When all the framing and mechanical work is complete and the home is ready for drywall, we walk through it with you. This is your opportunity to confirm that outlets are where you want them, backing is in the right places, and anything that needs to be adjusted gets flagged before the walls close up. After the walkthrough, there's a review period where changes can still be made. Then the inspection happens, approval is granted, and drywall begins.

Once drywall starts going up, we begin placing material orders. Changes after this point are possible but can come with added cost, so the six-way walkthrough is a milestone worth taking seriously.

What this feels like for you: One of the most exciting phases visually. The home transforms quickly during framing. The six-way walkthrough is an important moment, so come prepared and walk every room carefully.

Phase 6: Interior and Exterior Finishes

This is the longest phase of construction, and it's where everything you selected in Phase 2 starts showing up in the home. Drywall gets finished and painted, cabinets and flooring go in, tile is set, countertops are installed, and fixtures, doors, and hardware complete the picture. The home transforms quickly once this phase gets moving.

Exterior work happens in parallel: siding, stucco, stone, roofing, windows, and doors all come together during this phase as well. Southern Utah's summer heat is worth noting here. It doesn't stop exterior work, but certain tasks are better scheduled in the cooler parts of the day, early morning or late afternoon, rather than mid-afternoon in peak summer. Interior work is unaffected. Landscaping planning should be solidified around the time framing wraps up, with the layout finalized so your landscaping subcontractor can be scheduled appropriately.

Material lead times matter most during this phase. Selections that were made early and orders placed on schedule keep things moving. Items with long lead times that weren't ordered ahead of time can create wait periods that affect the overall schedule.

What this feels like for you: Gradual, then suddenly fast. Progress can feel slow in the early part of this phase, then the home seems to come together all at once toward the end. Weekly updates from your superintendent will keep you informed of what's happening even during the quieter stretches.

Phase 7: Final Walkthrough and Move-In

Before you get your keys, a final walkthrough happens. This is a detailed review of the completed home where any items that need attention get identified and added to a punch list. Your builder works through that list before closing out the project.

Final inspections are completed, the certificate of occupancy is issued, and the home is officially yours.

What this feels like for you: The finish line. Walk through carefully and note anything that looks off. This is the right time to raise concerns, not after you've moved in. Once the punch list is cleared and inspections are complete, you're home.

A Quick Reference

For a detailed breakdown of how long each phase typically takes, see our post on How Long Does It Take to Build a Custom Home in Southern Utah?.

One More Thing Worth Knowing

These phases don't always happen in a perfectly clean sequence. Some overlap. Some move faster than expected and some slower. What stays consistent throughout is communication. At Madsen Homes, you'll receive weekly updates so you always know where the project stands and what's coming next, regardless of what phase you're in.

Building a custom home in Hurricane, St. George, Washington, Ivins, or anywhere in Washington County is a significant undertaking. Understanding the process doesn't make it simple, but it does make it a lot less mysterious. And that's a good place to start.

Check out related blog posts and projects:

Building in Southern Utah: What to Know Before You Start

Hurricane vs. St. George: Which Southern Utah City Is Right for Your Custom Home?