Every year, a handful of Southlake buyers get the same unpleasant surprise a few weeks into their contract. They toured a home, loved the street, and assumed the address carried the Carroll ISD assignment that drew them to Southlake in the first place. Only later do they learn the property sits inside the small slice of the city that is actually zoned to Keller ISD. Their agent didn't catch it. Their out-of-state lender never flagged it. The comps they were handed were priced as though the school assignment were settled, because on paper, in the address itself, the house reads as Southlake.
It isn't a rare glitch. It's built into how the city is drawn. Nearly all of Southlake sits inside Carroll Independent School District, but a strip west of Davis Boulevard and Randol Mill Road falls inside Keller ISD instead, and the city's own resident directory confirms the overlap, listing Keller ISD's Florence Elementary as a campus physically located inside Southlake. Carroll ISD's enrollment office has built a formal workaround for it: families who live in Southlake but land in the Keller zone can apply for a transfer through the district's online enrollment dashboard, though open enrollment is limited to Southlake and Westlake residents and city first responders, and transportation isn't included.
That boundary quirk is a small version of a much bigger problem with how Southlake gets discussed as a real estate market. The city gets reduced to a single median price, as though a decades-old resale on a golf course and a brand-new custom build inside a 42-acre master plan are competing in the same market. They aren't. Here is what actually sits behind that median, and why the gap between the number a buyer sees online and the number a specific street commands keeps widening in 2026.
One City, Two Different Medians Before You Even Zoom In
Even the citywide figure moves depending on who is measuring and when. Market data through March 2026 put Southlake's median sale price at $1.3 million, with 38 homes sold that month, up from 21 a year earlier. Market data through late May 2026 put the median 30-day sale price at $1.37 million, with price per square foot at $357 and 25.81 percent of active listings carrying a price reduction, up 12.5 points from a year prior. Two respected measurements, taken about ten weeks apart in the same year, landed roughly $70,000 apart. Early-2026 market reporting also pointed to citywide inventory up around 21 percent year over year, with days-on-market for well-priced listings ranging from roughly 49 to 68 days depending on the source and the week measured.
That spread is small next to what happens once you leave the citywide number behind and look at individual pockets.
What the Median Is Actually Averaging Together
| Neighborhood | What it is | What the data shows |
|---|---|---|
| Timarron | A roughly 1,200-acre master-planned community spanning 14 named sub-neighborhoods, anchored by Timarron Country Club and a Byron Nelson-designed golf course, with homes built mostly between 1992 and 2007 | Prices run noticeably higher for homes south of Continental Boulevard that front the golf course than for homes north of Continental and east of Byron Nelson Parkway, reflecting lot position more than square footage |
| Clariden Ranch | 115 custom homes on 1-acre-plus lots that began construction in 2001, sitting across N. White Chapel Boulevard from the 500-acre Bob Jones Park, with school zoning split between Carroll ISD and Northwest ISD depending on the lot | As of July 2026, listing data showed a median list price of $3.95 million on a single active listing, a reminder that thin luxury inventory can swing a "median" hard in either direction |
| Carillon Parc | A 42.5-acre mixed-use development at the corner of SH 114 and N. White Chapel Boulevard, built around European-inspired architecture and a central plaza with water features | Custom-built new construction there has been described in public reporting as ranging from $2 million to $3 million, well above the citywide price-per-square-foot figure |
A buyer anchored on the citywide $1.3 to $1.37 million figure who then tours a Timarron resale on a shaded interior lot is looking at a genuinely different product than a new build in Carillon Parc, even though both listings will say Southlake at the top.
Why Carillon Parc Is Still Not a Finished Story
Carillon Parc is worth understanding on its own, because it shows how a neighborhood's price data and its zoning status can be moving on two separate timelines. The development traces back to a 285-acre plan approved by Southlake's council in 2008, later scaled down to the 42.5-acre footprint that broke ground in 2023. The residential portion has moved forward steadily. An earlier phase called the Village at Carillon Parc won unanimous council approval back in 2018, and homes are actively under construction today.
The commercial and plaza phase has had a rougher run. Southlake's council denied the first rezoning request 7-0 in September 2023, then tabled it repeatedly through 2024 at the request of the developer, Carillon Crown LLC. The most recent public record available shows the case tabled again at the December 2, 2025 council meeting, pushed to the January 20, 2026 agenda, continuing a pattern that has now stretched more than two years past that first denial. Among the sticking points raised in public meetings has been a proposal to convert a planned public road into a private valet road and to shrink planned residential lofts, along with debate over a roughly $5 million water feature that a former Southlake mayor once compared to the fountains at the Bellagio in Las Vegas. Buyers closing on Carillon Parc homes right now are moving into a residential community where the boutique hotel, library, and retail phase they may have pictured is still working through the city's zoning process rather than sitting on an approved site plan.
The neighborhood's better-known recent story is a happier one. Carillon Parc hosted the St. Jude Dream Home Showplace, where five builders, Atwood Custom Homes, Beckett Graham Luxury Homes, Heritage Homes, Kensington Custom Homes, and WillowTree Custom Homes, built side-by-side homes for the first time in a single community to raise money for St. Jude Children's Research Hospital, a format organizers described as a pilot that could be repeated in other communities nationally. It's a good example of how a single neighborhood can carry both an active civic zoning fight and a genuine community milestone at the same time, which is exactly the kind of texture a citywide median can't show you.
What to Actually Ask Before You Write an Offer
A few questions travel further than the median price does:
- Is the school assignment confirmed in writing, not just a portal's map view? The Keller ISD sliver west of Davis Boulevard and Randol Mill Road is real, and it won't show up on a national listing site's boundary overlay.
- If the listing markets a promised amenity, is it actually zoned yet? Carillon Parc's residential phase and its commercial phase are not on the same clock, and the difference matters if a walkable retail district or a new library factored into the price you're willing to pay.
- Does the comp set match the pocket, not just the city? A Timarron resale, a Clariden Ranch acreage listing, and a Carillon Parc new build shouldn't be pulling from the same comparables, even when all three show up under a "Southlake" search.
A Few Common Questions
Is every home in Southlake zoned to Carroll ISD? No. Most of the city is, but a strip west of Davis Boulevard and Randol Mill Road falls inside Keller ISD, and the City of Southlake's own resident directory confirms a Keller ISD campus operates inside city limits.
Why do price-per-square-foot figures for Southlake vary so much depending on where I look? Part of it is timing, since different market snapshots even a few weeks apart can show different citywide medians. A bigger part of it is that the city contains genuinely different products, from decades-old golf course resales to acre-plus custom lots to brand-new construction inside a master-planned district, and each one prices differently on its own terms.
Should I be cautious about buying in Carillon Parc while the commercial zoning case is still pending? Not necessarily cautious, but informed. The residential portion has been moving forward on its own timeline since 2018, separate from the plaza district case. Anyone weighing a purchase there should check the city's current agenda status for the commercial phase rather than assume it's already approved.
Southlake rewards buyers who read past the headline number, and that's exactly the kind of pocket-by-pocket comparison Holly Davis & Amy Farris do for clients moving between Dallas neighborhoods and the second-home and land markets around them. If you're comparing a specific Southlake street against what else is available in Park Cities, Preston Hollow, or Cedar Creek Lake, reach out and we'll walk through what the data actually says about your target pocket before you write an offer.
