By Brooke Brown | September 11, 2026
Here’s what I tell buyers who ask me this: don’t compare the two homes by price. Compare them by what you’ll actually pay each month and what you’ll need at the closing table. In today’s Sioux Falls market, that reframing changes the answer for a lot of people.
Builder incentives have quietly become the biggest story in local new construction. Nationally, the NAHB/Wells Fargo Housing Market Index has shown at least 60% of builders using incentives to move homes, and here in Sioux Falls those offers are running at levels we haven’t seen in about five years. That matters because a builder would rather hand you a rate buydown than cut the base price — cutting the price upsets the neighbors who bought last year and drags down the comps on the homes still for sale. So instead of a lower number on the sign, you get a lower number on your mortgage statement.
Meanwhile, resale inventory is still tight. Existing-home supply is down year over year, homes are selling in roughly 75 to 77 days, and anything well-priced under about $800,000 is firmly in seller’s-market territory. That’s the tension every Sioux Falls buyer is walking into this fall: new homes are competing hard on payment, and used homes are competing hard on scarcity.
The real trade-off is monthly payment, not list price
When people picture “new versus used,” they picture a price gap. That gap is real, but incentives are closing it in ways that don’t show up on Zillow.
The three incentives you’ll see most often on Sioux Falls new construction:
- Temporary rate buydown (like a 2-1 buydown). Your rate drops by 2% the first year and 1% the second year, then settles at the full rate in year three. The builder funds the difference upfront at closing, so your early payments are noticeably lower without extra cash out of your pocket. Great if you expect your income to rise or plan to refinance if rates fall.
- Permanent rate buydown. The builder pays points at closing to lock a lower rate for the life of the loan. This one favors buyers who plan to stay put for many years, because the savings never expire.
- Closing-cost credits. The builder covers lender fees, title costs, escrow setup, and prepaid items like taxes and insurance. This is the one that helps most if your challenge is cash to close rather than the monthly payment.
The trap is comparing incentives as if they’re all the same. They’re not. A rate buydown and a design-center credit solve different problems — one lowers your payment, the other adds finishes you’d otherwise pay for later. Before you get excited about a headline offer, translate every incentive into two numbers: what it does to your monthly payment, and what it does to the cash you need at closing. That’s the only apples-to-apples comparison.
Two honest qualifiers. Most builder incentives require using the builder’s preferred lender, so you’ll want to compare that loan against an outside quote to make sure the deal is real and not just repackaged into the rate. And a big incentive on top of a firm base price isn’t automatically a better deal than a resale you can negotiate — you have to run both.
Where resale still wins
New construction isn’t the right answer for everyone, and I’d be doing you a disservice to pretend otherwise.
Resale tends to come out ahead when:
- Established location matters more than new finishes. Sioux Falls’ core and older neighborhoods near McKennan Park, Central, and the All Saints and downtown-adjacent areas simply aren’t where new subdivisions are going up. If you want mature trees, walkability, and a shorter commute to the center of town, that’s resale territory.
- You want negotiating room. In a tight market you won’t always get it, but a resale seller can lower the price, cover repairs, or credit closing costs. A production builder rarely touches the base price.
- You need to move quickly. A finished resale home closes on your timeline. New construction may mean waiting on a build — although builders’ finished spec and quick-move-in homes are exactly where the strongest incentives tend to land right now.
- Total move-in cost matters. New homes can come with a fresh yard, window coverings, and higher-end lot premiums to budget for. A resale may already have those handled.
Most of the new-construction growth is happening on the edges — the west side around the Ellis Road corridor and pockets of the east side and southeast, plus the surrounding communities of Harrisburg, Tea, Brandon, Hartford, and Lennox. Development and rezoning in those areas is active and changing month to month, so if a specific subdivision, lot, or future road matters to your decision, verify the current status before you commit. That’s part of what I track for clients.
If you’re still weighing where in the metro to focus, my guide on how to choose the right Sioux Falls neighborhood for your life is a good companion to this decision.
How South Dakota’s closing process affects both
The buy-or-build question is national, but your actual costs are local — and South Dakota’s process has a few features that work in your favor.
- No state income tax. South Dakota is one of a handful of states with no personal income tax, which affects your overall affordability and take-home budget more than most buyers factor in.
- A low transfer fee. South Dakota’s real estate transfer fee is just $0.50 per $500 of value — about $330 on a $330,000 home. It’s customarily paid by the seller and it’s negotiable, but either way it’s small compared with the transfer taxes buyers face in many other states.
- A title company closes the deal. In South Dakota, closings run through a title company rather than an attorney, and you’ll deal with an owner’s title insurance policy and a title commitment on the way to closing. On a new build, you’ll also want to understand the builder’s warranty and any lot or subdivision documents.
- Disclosures still apply. On a resale, the seller provides South Dakota’s Seller’s Property Condition Disclosure Statement. New construction works differently, since there’s no prior-owner history — which is one reason the builder’s warranty and your own inspection matter so much on a new home.
Your specific number — new or resale — depends on the price, the loan, the incentives on the table, and your closing costs. That’s exactly the kind of side-by-side I run with clients before they fall in love with either option.
Which one fits your situation?
A quick way to sort it out:
- Lean new construction if you value a lower monthly payment over a lower price, you plan to stay long enough for a permanent buydown to pay off, or your budget is tighter on payment than on cash to close.
- Lean resale if established location and walkability matter most, you want negotiating leverage, you need to close fast, or you’ve found the right home in a neighborhood where nothing new is being built.
And if you’re a move-up seller, there’s a third layer: today’s incentives can make the new home more affordable than you’d expect, while the tight resale market can help your current home sell quickly and near asking. Timing those two transactions so you’re not carrying both — or caught without a place to land — is the part worth planning carefully.
Frequently asked questions
Is new construction cheaper than resale in Sioux Falls?
Not on list price, usually — but often on monthly payment. With builder rate buydowns and closing-cost credits near a five-year high, a new home can carry a lower monthly cost than a comparable resale even at a higher sticker price. Always compare the two on payment and cash-to-close, not on price alone.
Do I need my own agent to buy new construction?
Yes, and it costs you nothing to have one. The on-site sales rep works for the builder. Having your own agent means someone is comparing incentives, reviewing the contract and warranty, checking the builder’s lender against outside quotes, and representing your interests — not the builder’s.
How much are closing costs when buying a home in South Dakota?
South Dakota’s transfer fee is low at $0.50 per $500 of value, and there’s no state income tax. Your buyer closing costs mostly come from lender fees, the appraisal, title work, and prepaid taxes and insurance — often a few percent of the purchase price. On new construction, closing-cost credits from the builder can offset a large share of that.
Is it a good time to buy in Sioux Falls right now?
It depends on your situation, but the setup is unusual: builder incentives are strong, and resale supply is tight with homes selling in about 75 days and prices firm under roughly $800,000. That combination rewards buyers who compare a well-negotiated resale against a well-incentivized new build rather than assuming one is always better.
Should I use the builder’s preferred lender?
You can, and their incentives often require it — but get at least one outside quote first. Compare the rate, fees, and total cost, not just the advertised buydown, so you know the incentive is real value and not offsetting a higher rate somewhere else.
If you’re weighing new construction against a resale for your own move, I’m happy to run both side by side — payment, cash to close, and the fine print — so you can see the real difference before you decide. Reach out anytime.
About Brooke Brown
Brooke Brown is a full-time real estate agent with the Merchant Home Group, one of the top listing teams in Sioux Falls, South Dakota. She works with both buyers and sellers across the Sioux Falls metro — including Harrisburg, Tea, Brandon, Hartford, Canton, Dell Rapids, Parker, and Lennox — and partners closely with a select group of local builders. You can find her work and search Sioux Falls homes at modernsiouxfallshomes.com.