Is It Cheaper to Build or Buy a House?

The Mistake That Blows Up Build Budgets: The Quote Is Not the Budget

Here's the mistake that wrecks build budgets: treating the builder's per-square-foot quote as the whole cost. That $150-to-$400-per-square-foot number covers construction. Just construction. Stack the rest on top: the land itself, $30,000 to $200,000 or more depending on market. Site preparation, $5,000 to $20,000. Permits and fees, $1,500 to $15,000. Architect and design work, $5,000 to $30,000. Landscaping and finish work, $5,000 to $50,000. Then the line item almost nobody budgets for: cost overruns, which commonly run 10% to 20% over the original estimate. Financing costs more too. Construction loans typically carry interest rates 1% to 2% above standard mortgage rates, require 20% to 25% down, and expect a credit score of 680 or higher. Add it all up and a realistic all-in range for a new build lands at $350,000 to $700,000 or more, depending on market and finishes. If the number you're comparing against an existing home skips any of those layers, the comparison was broken before it started.

What Buying an Existing Home Actually Takes

Buying an existing home is smaller money and a shorter clock, full stop. With the national median price near $403,000, a $400,000 purchase typically needs a $20,000 down payment at 5%, around $12,000 in closing costs at 3%, and $400 to $600 for inspections. Total cash to get in the door: roughly $32,000 to $62,000. FHA or conventional programs can pull that down payment as low as 3% to 3.5%. The clock runs in weeks, not seasons: about 30 to 60 days from accepted offer to keys. Building still makes sense in specific situations. When land in your target area is genuinely affordable, $10,000 to $50,000. When you need a design that simply doesn't exist on the resale market. When local housing stock is old enough that major system replacements erase the savings. Or when a production builder in the $200-to-$350-per-square-foot range is competitive. In 2026, production builders in parts of the Midwest and South are pricing new construction within 5% to 10% of existing homes, sweetening deals with mortgage-rate buydowns, closing-cost credits, and appliance packages. In coastal markets, expensive land and strict permitting mean building almost always costs more.

What This Math Means for Florida Homeowners Selling or Trading Up

Run the numbers and the depth of the resale market makes sense on its own. When a would-be builder sees the 20%-to-25% construction-loan down payment, the 6-to-18-month wait, and the five-figure stack of costs hiding outside the builder's quote, most of them buy an existing home instead. That buyer, putting 3% to 5% down on a fully underwritten FHA or conventional loan and working a 30-to-60-day closing clock, is exactly who is shopping for your current house. It's also the buyer pool Cash Flow Deals works with every week. With Cash Flow Deals, you choose between the Fast Cash Offer, where we buy your house as-is and close, and the Premium Cash Offer, where a pre-approved FHA or conventional buyer we already have, ready to go, pays more and buys directly from you. With Premium, you sign with us at an agreed number and give us permission to bring in a buyer in our place. That buyer signs a new contract directly with you, title transfers directly to them, their lender funds the purchase, and Cash Flow Deals is paid as a separate line item on the settlement statement. Your home may be listed through Silver Door Realty, a licensed Florida brokerage, with a licensed agent and scheduled showings. If your plan is to sell your current home to fund a build, lining up the sale matters twice over: construction lenders want to see your money lined up before they fund, and your sale proceeds help turn someday-we-will-build into an actual groundbreaking date.

With either offer, the number is agreed before any work starts, and it changes only if you agree. The one exception: if something structural surfaces that was not visible or disclosed before we signed — foundation issues, hidden moisture, old wiring, cast-iron drain failure — we re-cost it and bring the number back to you. You decide. You can walk away. We disclose what we know at offer time so this almost never happens. We cover repair costs, and we figure out a way, so nothing comes out of your pocket. With Premium, only what the buyer's lender requires gets fixed; those costs are settled from the sale proceeds, from our share rather than your agreed number. With Fast Cash, we buy your house as-is, with no repairs for you to make. If the Premium buyer's loan falls through, that is our problem, not yours, and you can still take the Fast Cash Offer at its own number or continue with the Premium Cash Offer.

Here's how Cash Flow Deals helps you plan your sale around your build:

1. Share your address and target build timeline with Cash Flow Deals, so you can compare the Fast Cash Offer and Premium Cash Offer against when you need the funds in hand.

2. Review both offers, what you would receive, and the proposed closing dates. You choose which offer fits. With the Fast Cash Offer, we buy your house as-is and close; with the Premium Cash Offer, your home may be listed through Silver Door Realty, a licensed Florida brokerage, with a licensed agent and scheduled showings. Only what the Premium buyer's lender requires gets fixed, with repair costs settled from the sale proceeds and nothing paid by you up front.

3. Discuss the existing close-in-45-days-or-less option and a date you help pick, so you can plan when proceeds would be available for your lot, plans, or construction-loan down payment. Confirm the timing for the offer you choose in your written contract.