In Southlake, Building New Costs More Than Buying Resale Before You Even Buy the Lot

On a Southlake teardown, the new house can't get its building permit while the old house's paperwork is still open. Under the City of Southlake's February 2026 guidelines for new dwellings, the demolition permit for the existing home has to be issued, inspected and closed before the city will issue a permit for the new one. That sequence applies to a buyer who purchased a house in order to remove it.

The reason someone would buy a house just to remove it shows up in the city's own quarterly reports. In two of the last three reported quarters, the declared construction value of the average new Southlake home was well above the average price an existing Southlake home sold for, and in the third the two were nearly even. That resale price includes the land. The construction figure doesn't. In practical terms, a resale home here is a lot with a house on it, and the house is selling for less than it would cost to build again.

What the city's permit ledger shows

Southlake's Planning and Development Services department publishes a development update every quarter. The FY2026 third-quarter report covers April 1 through June 30, 2026. It also repeats the first two quarters of the fiscal year, so the trend is visible in one place. The home sales figures come from NTREIS, the regional MLS.

Divide each quarter's new residential permit value by the number of permits and you get the average construction value per new home. Here it is next to the average resale price:

The gap grew every quarter. In Q1 the two numbers were within about $18,000 of each other. By Q3 the average new home's permit value was roughly $577,000 above the average resale price. Over all three quarters, Southlake issued 40 new residential permits worth $83.2 million and covering about 292,000 square feet. That works out to about $2.08 million and 7,300 square feet per home, or roughly $285 per square foot of declared construction value.

There is a limit to what the reports can show. The city's total building permit count lumps demolition in with fences, pools, reroofs and about twenty other categories, so the reports can't tell you how many of those 40 new homes replaced an older house.

Why the permit number is a floor

A permit valuation is the construction value declared when the permit is filed. It isn't a final invoice. One Southlake-area custom builder's 2026 cost guide puts luxury custom construction in this corridor at $350 to more than $600 per square foot. That is well above the roughly $285 average implied by the city's figures.

At the builder's range, a home the size of Southlake's FY2026 average, about 7,300 square feet, would cost something like $2.56 million to $4.4 million to build. That is an inference from two sources, not a published figure. Still, it points the same way as the city's own data: the permit values are probably conservative, so the real gap between building and buying resale is likely wider than the table shows.

Then add the dirt

None of the construction numbers above include land, and land is what Southlake has least of. Community Impact reported in July 2025 that Southlake was 94% built out and that 54 new homes were completed in the city in 2024. In the same article, Paul Rostron, co-owner of Calais Custom Homes, said that in Southlake and Colleyville, "City Council will typically not let any developer or builder put more than one home per acre of land." That is a builder describing what usually happens, not the zoning code.

The few new subdivisions still coming online show the density he described:

• Jane's Place, off North Peytonville Avenue, is 14 lots on 22.7 acres built by Coleigh Homes. Community Impact reported that City Council approved dropping one lot in March 2026, which added 3,700 square feet of open space, and reduced the front setback from 40 feet to 30.
• Linmar Estates is 10 lots on 10.8 acres. Individual lots run 25,000 to 54,000 square feet, and planned homes run 5,000 to 9,000 square feet, according to Community Impact's November 2025 update.

Based on active listings through mid-2026, the builder guide above puts Southlake lots of half an acre to one acre at about $900,000 to $1.5 million, and lots of an acre or more at $1.5 million to $2.5 million and up. Put a standard estate lot together with the city's average permit value and a new Southlake home starts near $3 million on paper. Using the builder's construction range instead of the permit figure pushes it higher.

What that makes a resale house worth

This is the reason the comparison matters. In Q3 FY2026, Southlake's average resale closed at $1,727,214. Using the builder's lot ranges as a rough guide, a large share of that price can be read as land. What's left over for the house itself, with its roof, framing, kitchen and mechanical systems, is far less than the city's average permit value for a new home.

The same report shows how buyers responded. Q3 had 149 resales and 17 new-home permits. Most money coming into Southlake is still buying existing homes, and the cost gap above suggests why.

The resale market also leaves room to negotiate. In the NTREIS August 2026 MLS summary, produced by the Texas Real Estate Research Center at Texas A&M, Southlake had 23 closed sales, 25 pending sales, 128 active listings, 4.0 months of inventory, 49 average days on market, and a 94.3% sold-to-list price ratio. Measured by ZIP code rather than city limits, Community Impact's August 2026 data put the 76092 median sale price at $1,375,000. A median and an average measure different things, which is why that figure sits below the city's quarterly averages.

Put together, the August numbers describe a resale market where homes sold for about 94 cents on the asking dollar. Meanwhile, the cost of building new kept rising through FY2026. A buyer comparing the two is comparing a negotiable price against a cost that has been going up.

How the teardown path actually runs

That same math explains the teardown. If an older house on a large lot is priced mostly on its land, buying it is one of the few ways to get a buildable Southlake lot at all. Community Impact's 2025 reporting quoted a local agent predicting a shift toward tearing homes down and rebuilding. In the same article, Curtis Young, principal at land-planning firm The Sage Group, said some owners of multi-acre properties are splitting their land and selling smaller pieces.

The order of operations is where timelines get stretched:

1. Close on the existing home at a price that mostly reflects its land.
2. Obtain the full demolition permit from the City of Southlake.
3. Demolish, then pass the city's inspection and get the demolition permit closed.
4. Only then can the new-house permit be issued under the February 2026 guidelines.
5. Build, carrying the cost of the land the whole time.

Every step before step 4 is time when the buyer owns land in Southlake without a permit to build on it. That cost belongs in the budget alongside the lot price and the construction estimate.

Questions that make a resale-versus-build comparison honest

• Is the permit value or the builder's quote the right construction number? The city's average is a declared value. A builder's line-item bid for your plan is the number your budget actually depends on.
• What part of a resale listing's price is the lot? Compare it with the lot ranges above for a similar size. Whatever is left over is what you're paying for the house.
• Can the lot hold the house you want? Jane's Place shows that setbacks and lot counts get negotiated at City Council, and those decisions shape the area where a house can actually be built.
• How long would the demolition and permit sequence take for this property? That time costs money too.

FAQ

Do the city's reports count teardowns?

Not separately. Demolition is one of more than twenty permit types in the city's total building permit count, so the reports don't show how many new homes replaced older ones.

When will the next city data come out?

The city says it posts an update after each quarter and will publish a full FY2026 annual report once the data is available. The Q4 update, covering July through September 2026, hadn't been published as of this writing.

Why do the city's average price and the ZIP-code median differ?

The city reports the average sale price within Southlake's city limits for each quarter. Community Impact reports the median for ZIP code 76092 for a single month. The two measure different things over different areas, so neither one replaces the other.

If you're deciding between a Southlake resale, a lot, or a home you'd tear down and rebuild, it helps to price all three side by side, with real construction numbers and a realistic permit timeline. Trisha Atwood works on both sides of that comparison, from resale homes to custom building, and is glad to go through the numbers on a specific property with you. Let's Connect.

This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.