Search "The Colony TX home prices" this month and you will get three different answers depending on which site you land on. Zillow's home value index puts the average at $406,211 as of its June 30, 2026 update, down 4.0% from a year earlier. Redfin's own page contradicts itself: a three-month window ending in May 2026 shows a median sale price of $454,000, down 1.9% year over year, while a separate line on the same page lists an average price of $475,000, up 12% year over year. HAR.com's July 2026 figure puts the average sale price at $605,330.

None of these sites made an error. They are measuring three different slices of the same city and calling all three "The Colony." That gap, nearly $200,000 between the low and high estimate, is not statistical noise. It is a symptom of a city that behaves like two markets stitched together under one name, with a tax boundary running through the middle that most buyers never think to ask about.

The Same City, Two Tax Bills

Before you get to price, there's a friction that shows up on the closing statement, not the listing. The Colony sits inside two different school district boundaries, Lewisville ISD and Little Elm ISD, and each one carries its own combined tax rate. According to Denton Central Appraisal District figures published in Old Republic Title's 2025 DFW property tax rate guide, the two combined rates look like this:

The city rate is identical. The county rate is identical. The only thing that changes is which school district the address falls into, and that alone moves the combined rate by about 10.7 cents per $100 of assessed value. On a home with a taxable value of $450,000, that gap works out to roughly $480 a year, or about $40 a month folded into escrow, for a Little Elm ISD address instead of a Lewisville ISD one a few streets over. Since a lender's debt-to-income calculation runs on the full PITI payment, that $40 a month can be the difference between a pre-approval that clears and one that doesn't at the margins.

Worth noting for anyone cross-shopping newer North Texas suburbs: the same tax guide lists a separate Municipal Utility District line and a separate Public Improvement District line for Trophy Club, on top of its city, ISD, and county rates. The Colony rows carry no such line. Because most of the city was built out well before MUD and PID financing became standard for master-planned development, the tax surprise here isn't a special district tacked onto a raw-land subdivision. It's the ISD boundary, and it's easy to miss because it doesn't show up on a street map.

What the Median Price Is Actually Averaging

The price spread across Zillow, Redfin, and HAR makes more sense once you look at what's actually being sold. The Colony's average home runs about 2,476 square feet, smaller than the typical Denton County home. That inland, older stock anchors the lower end of the range you'll see quoted. But the city also has a second tier: golf-course homes near Stewart Peninsula Golf Course and lake-adjacent product feeding off Lake Lewisville access points at Wynnwood Park and Stewart Creek Park, where both boating and fishing access pull in a different buyer at a different price point. New construction in the city has been starting around $500,000 and running into the $800s, well above the inland resale stock that anchors the lower end of the range.

That split helps explain why HAR's July 2026 average of $605,330 sits so far above Zillow's index. If a given month's closed sales lean toward the golf-course and lake-adjacent tier, an average price will spike even while a broader median, pulled down by the larger volume of smaller inland homes, keeps drifting lower. It also explains the mismatched pace numbers on the demand side: Zillow reports homes going to pending in around 23 days, while Redfin's three-month window shows an average of 40 days on market, up from 35 a year earlier. Those aren't contradictory measurements of the same thing. They're evidence that different tiers of this market are moving at different speeds, and any single "days on market" headline is averaging across both.

If you're weighing The Colony against a nearby lake suburb, the fair comparison isn't city-wide median to city-wide median. It's golf-course tier to golf-course tier, and inland starter stock to inland starter stock. The neighborhood's own page breaks out active listings by area, which is the more useful starting point than a portal's blended number.

Grandscape's Next Phase Is Already Shaping the Corridor

Anyone comparing The Colony for long-term value should also account for what's under construction, not just what's already built. In April 2026, JPI broke ground on Jefferson Grandscape II, a five-story, 277-unit apartment community at 5500 Nebraska Furniture Mart Drive, adjacent to the Grandscape development anchored by the Nebraska Furniture Mart store. The project carries a total cost of $77,837,000, financed in partnership with Nebraska Furniture Mart with lending support from QuadReal, and is expected to open in January 2028. It's JPI's second phase in the immediate area following its first Jefferson Grandscape building, and the company describes it as its 124th development across the Dallas-Fort Worth region.

That matters for two reasons if you're evaluating the corridor near the tollway. First, it adds meaningful rental supply right at the edge of the retail and entertainment district, which shapes what comparable rental comps look like for anyone weighing a purchase there as an investment. Second, it's a concrete signal that the $1.5 billion Grandscape development, built around the 1.8-million-square-foot Nebraska Furniture Mart store on roughly 430 acres, is continuing to add housing density around its retail core rather than staying purely a shopping and entertainment draw, a shift Local Profile reported as part of a broader pattern of North Texas retail districts adding residential components.

How to Compare The Colony Without Getting Fooled by the Headline Number

1. Pull the actual parcel record from the Denton Central Appraisal District before you compare payments on two listings that look priced the same. Confirm which ISD the address sits in, not just the city.
2. Separate your comps by tier. Compare golf-course and lake-adjacent listings against other golf-course and lake-adjacent listings, and inland resale stock against inland resale stock. A blended median across both tiers won't tell you what a specific street is doing.
3. Ask your lender to run the payment with the correct combined tax rate for the exact address, not a citywide estimate, before you finalize how much home you can qualify for.
4. Factor in what's under construction, not just what's built. The corridor around Nebraska Furniture Mart Drive is adding density through 2028, which will shift the rental and resale comps in that specific pocket over the next few years.

Frequently Asked Questions

Does the ISD boundary actually change my mortgage approval? It can, at the margin. Lenders qualify buyers based on the full PITI payment, so a combined tax rate that's roughly 10.7 cents per $100 higher on the Little Elm ISD side of the boundary adds a real, if small, monthly cost that factors into your debt-to-income ratio.

Is The Colony in a MUD? Based on the Denton Central Appraisal District's published rate structure, most established Colony addresses are not layered with a separate MUD or PID line the way some other North Texas suburbs are. Always confirm the specific parcel before closing, since rates and district boundaries can change year to year.

If you're trying to figure out which tier of The Colony actually fits your budget and which side of that ISD line your target street falls on, that's exactly the kind of parcel-level digging Real Estate Resources does before you write an offer. Reach out for a free home valuation and financing review, and we'll walk through the real numbers for the specific address you're considering, not just the citywide average.