The build-and-sell guide
Buying new construction while selling your Utah home.
Building a new home while you still own one is a different problem than a resale-to-resale move. The build itself hands you something a resale never does: months of runway to sell before you need the keys. But the builder's completion date can slide, and the builder's contract almost never waits on your home selling. This page is about using that runway well, timing your listing against the build, and bridging any gap between your sale and the builder's closing date.
Want the general two-move playbook first? Start with buying and selling at the same time, part of the life-transitions hub.
On this page
The short answer
A new build changes the timing in your favor, mostly.
Here is the whole thing in a paragraph. When you build a new home while selling your current one, the build itself gives you a runway that a resale purchase never does. From contract to keys a new home in Utah commonly runs several months, and often the better part of a year, so you are not forced to sell in a hurry to line up two closings in the same week. That is the gift. The trap is two-sided: the builder's completion date is a target that can move, and the builder's own purchase agreement almost never lets your offer wait on your home selling first. So the plan is not really about the house hunting, since you already picked the home. It is about reading how the build is truly tracking, prepping the home you are leaving, timing your listing against the build's real milestones rather than its promised date, and having a clean way to cover any gap between your sale and the builder's closing.
This page is the new-construction version of the two-transaction move. The general playbook, sell first or buy first, the contingency, the bridge, and the rent-back as one plan, lives on the guide to buying and selling at the same time, and it is worth reading alongside this. What follows here is the part that only applies when the home you are buying is being built: the runway and how to use it, the builder-contract reality that changes your options, where your money is exposed if the sale drags, and the specific ways to bridge the gap when a build and a sale do not finish on the same day.
The gift and the trap
The build is your runway, until the date moves.
Start with the good news, because it is real. A resale-to-resale move is a race: the moment you go under contract on the next home, the clock is loud, and you often have only weeks to sell and close so the two sides meet. A build stretches that clock out. You sign the builder's paperwork, then the home has to be permitted, graded, poured, framed, roughed in, drywalled, and finished before anyone hands you a key. That is months of visible, trackable progress during which your current home can be prepped, priced, listed, and sold on a calmer schedule. Used well, the runway means you are not dumping your home at a discount to hit a closing date, and you are not stacking two payments any longer than you have to.
Now the trap. A completion date on a new build is a target, not a promise, and it moves for reasons that have nothing to do with you: a slow permit review, winter weather that stalls a foundation up north or extreme summer heat that reshapes exterior work in the St. George area, a back-ordered material, or a trade booked out on other jobs. The build timeline guide walks each of those reasons in detail. The point for a build-and-sell move is that you cannot set your listing to the date printed in the contract and trust it. If you sell to that date and the build runs two months long, you have sold your home and have nowhere finished to go. If you ignore the date and the build finishes early, you may be closing on the new home with your old one still unsold. The whole skill here is watching the build's actual milestones, not its paperwork date, and timing your sale to reality.
Timing your listing
When to list, keyed to the build.
The sequence below runs your sale off the build's real progress instead of its promised date. Each step links to the deeper guide behind it.
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Read your equity at contract signing
The day you go under contract on the build, get an honest value on the home you have, drawn from recent comparable sales nearby. That number sets what your current home nets and shapes every timing choice that follows, including how much room you have if the two closings do not line up. Get your home's value.
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Get pre-approved and ask about the gap
Talk to a lender early about your purchase and about what carrying both homes for a short stretch would look like if the sale ran behind the build. How your financing holds through a long build is a lender's conversation, so have it up front rather than assuming. How pre-approval works.
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Prep the home you are leaving during the build
Use the runway. While the new home is framing and finishing, handle the deep clean, the declutter, and the small obvious repairs on your current home, and set a price from real comps. A home that is show-ready can be listed on short notice when the build tells you the time is right. Preparing your home.
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Track the build's milestones, not its date
Follow the phases: dried in, roughed in, the pre-drywall walk, drywall, finish. When the home is through rough-in and into finishes, the completion is close and reliable enough to plan a sale around. That is your signal to move, not the target date printed months earlier. Contract to keys.
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List so the sale lands near completion
Time your listing so your home sells and closes as near to the build's finish as the market allows, ideally close enough that you move once. In a fast market that means listing later in the build; where homes sit longer, you list earlier and plan to bridge the gap on the back end.
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Coordinate both closings and a fallback
Work to set your sale and the builder's closing as close together as both allow, and have a short interim plan ready in case the dates miss. A rent-back on your sold home or a brief rental keeps a mismatch of days or weeks from turning into a crisis. Temporary housing options.
Builders and sale contingencies
The builder will rarely wait on your home selling.
On a resale, if you need your current home to sell before you can close on the next one, Utah's standard contract has a clean way to write that in, a Subject to Sale of Buyer's Property Addendum, and many resale sellers will accept it. New construction is a different animal. As a general practice, production and national builders do not accept an offer that is contingent on your home selling first. The reason is structural: the builder is financing and constructing the home themselves and only gets paid when it is finished and delivered, so a sale contingency would leave them exposed if your home never sold and you walked away from a home built to your selections. Their purchase agreement is typically take-it-or-leave-it, written by the builder's attorneys, and a home-sale contingency is one of the things it is written to exclude.
That single fact reshapes your options. On a resale you might lean on the contingency as your safety net and sell at a relaxed pace. Building, you usually cannot. You are committing to buy the new home on the builder's timeline whether or not your current home has sold, which is exactly why the runway, the milestone tracking, and the bridge tools below matter so much more here. It also raises the stakes on the contract itself. Before you sign, read the deposit, completion-date, and delay clauses closely and have a real estate attorney review them, because those clauses, not a contingency, are what actually govern your risk. The builder-contract guide walks that document clause by clause.
If a builder does make an exception and entertains a contingency, read the terms carefully, because they tend to favor the builder. Expect firm deadlines for listing your home, accepting an offer, and closing, and expect that if your home does not sell in that window your deposit may become non-refundable. An exception written on the builder's terms can carry more risk than no contingency at all, so treat any such clause as a reason to slow down and get it in front of an attorney, not a reason to relax.
Where the risk lives
What is exposed if your sale runs behind.
None of these are reasons not to build. They are the specific spots where a build-and-sell move can cost you if the sale lags the build, so you plan for each one early.
Your builder deposit
New builds tend to ask for a larger deposit than a resale, and money you put toward upgrades at the design center is often non-refundable right away, because the builder orders materials around your picks. If your sale stalls and you cannot close, that deposit can be what is at risk. Know exactly when each dollar locks before you sign.
Carrying two at once
Without a sale contingency, you are on the hook to close on the finished home whether or not your current one has sold. If the sale runs behind, you may carry two mortgages and two sets of costs for a stretch. That is the exact load to size up with a lender before you commit, not after the build is done.
The date that moved on you
A completion date that slips can cut both ways. Sell to the old target and a delay leaves you with no finished home to move into; ignore the target and an early finish leaves you closing with your home still unsold. Planning a rent-back or interim housing on both ends is what keeps a moved date from becoming a scramble.
Bridging the gap
Match the bridge to when your home actually sells.
Because a build and a sale rarely finish on the same day, the right tool depends on which one lands first. Here are the three cases and the bridge that fits each, by how it works rather than what it costs. The financing pieces are a lender's call on your numbers.
| When your home sells | What that means for you | The bridge that fits |
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| Well before the build finishes | Your home sells and closes while the new one is still going up, so you have your equity and clean, non-contingent buying power, but you need somewhere to live in the meantime. | A short-term rental or interim housing carries you until the build is done, and a rent-back on your sold home can hold you in place for a shorter gap. Both keep you to a single move at the end. |
| Right around completion | The sale and the build finish in the same window. This is the goal: you close on both sides close together and move once, straight from the old home into the new. | Tight coordination between both closings, with a short rent-back or a few interim days as a cushion in case the dates miss by a little. No extra financing needed when the timing lines up. |
| Not yet when the build is done | The builder's date does not wait on your sale, so you may need to close on the new home, and carry both, before the old one has sold. | Bridge financing or borrowing against your current home's equity can cover the new purchase until the sale closes, whether the tool fits and what it costs is a lender's call. A price adjustment to move the old home is often the faster, cheaper answer. |
Both clocks, one plan
One person watching the build and the sale.
Here is the part a guide cannot do for you. A build-and-sell move has two clocks running at once, a construction schedule you do not control and a sale you have to time against it, and it helps to have one person watching both who has done this across this market.
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Twenty years in Southern Utah. I have helped buyers through new builds and helped sellers list and close across Iron and Washington counties. I know how these build schedules really run here, and how fast homes move, which is what a listing date has to be timed against.
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I track the build so you can time the sale. I watch the design-center deadlines, the inspection points, and the moving completion date, and read them against your current home so you list when the build says the finish is real, not when the contract guessed.
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Agent and lender, one picture. I am licensed in both. I can list the home you are leaving and read the builder contract and the financing timing on the next one as a single plan, taking one role on the purchase and never both at once, so nothing falls through the gap.
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Statewide, told straight. In Southern Utah I am your agent on both sides. Anywhere else in Utah, I connect you with a vetted partner agent I trust in your area and stay involved, so you always have a local who knows the streets.
Questions, answered
What people ask about building while selling.
As a general practice, no, especially with production and national builders. Because the builder finances and constructs the home and only gets paid at delivery, a home-sale contingency would leave them exposed if your home never sold, so their purchase agreement is usually written to exclude it and is take-it-or-leave-it. If a builder does make an exception, expect firm deadlines to list, accept an offer, and close, and expect your deposit to be at risk if your home does not sell in that window. Read any such clause with a real estate attorney before you rely on it.
It gives you a runway a resale purchase does not. From contract to keys a new home in Utah commonly runs several months, sometimes close to a year, so you are not forced to sell in a hurry to line up two closings in the same week. You can prep and price the home you are leaving at a calmer pace, then list it so the sale lands near the build's finish. The one catch is that the completion date can move, so you time the listing to the build's real progress rather than the date printed in the contract.
That is the risk to plan for, because the builder's closing date will not wait on your sale. You may need to close on the new home, and carry both for a stretch, before the old one sells. The tools people use to cover that gap are bridge financing or borrowing against your current home's equity, and whether either fits and what it costs is a lender's call on your numbers. Often the faster and cheaper answer is a price adjustment to move the home you are leaving. It is worth sizing up all of this with a lender before you sign the build contract, not after.
Then you have your equity and clean, non-contingent buying power, but you need somewhere to live until the build finishes. A short-term rental or other interim housing bridges the longer gaps, and a rent-back that lets you stay in your sold home as a temporary tenant handles the shorter ones. Both keep you to a single move at the end instead of two. Which fits depends on how much time is left on the build and on your budget, and it is one of the first things to plan once your home is under contract.
Yes. Utah's standard contract lets you sell, close, and then stay in the home as a short-term tenant under a separate written agreement, so a rent-back works just as well on a build-and-sell move as on a resale one. It is a clean way to sell before the new home is finished without moving twice, holding you in place for an agreed window while the build wraps up. The length and terms are negotiated into the sale of your current home, so it is planned as part of listing, not after.
List so the sale lands as close to the build's completion as the market allows, and key that off the build's real milestones rather than the target date. Once the home is through rough-in and moving into drywall and finishes, the completion is close and reliable enough to plan a sale around. In a fast market you list later in the build; where homes take longer to sell, you list earlier and plan to bridge the gap on the back end. Keeping the home show-ready during the build lets you launch on short notice when the timing is right.
It can, and how your financing holds through a build that runs long is a lender's conversation, not something to size up from a guide. Ask your lender up front what a delayed completion would mean for your loan and what carrying both homes for a stretch would look like if your sale ran behind. I keep the financing specifics with a lender and focus on timing the sale and the move around the build. Loan-by-loan detail lives in the choosing your loan guide.
Keep exploring
Building a new home and selling the one you have?
I am Scott Buehler, and I have helped people across Southern Utah build new while selling the home they were in, with the build schedule and the sale run as one plan instead of two crossed fingers. Tell me the builder or community and where your current home stands, and I will give you an honest read on your equity and when to list against the build. The loan mechanics and pricing stay with a lender, always. No cost, and no pressure to list.
Not in Southern Utah? I will connect you with a partner agent I trust in your area, and stay involved.