Two listings can both say "Bellevue, TN 37221." Both can sit within a five-minute drive of each other. And the two houses can still answer to different school systems, different tax rates, and in a real sense, different governments. Nothing on the for-sale sign says so. The zip code certainly doesn't.
That's not a marketing quirk or an MLS typo. It's an actual county line, and it runs straight through one of Bellevue's largest new-construction communities. If you're comparing homes in this part of Nashville by price alone, you're missing the reason the numbers don't add up the way you'd expect.
The Numbers Don't Agree Before You Even Get to the County Line
Start with what most buyers see first: the median. Pull one snapshot and Bellevue's median sale price over the three months ending May 2026 comes in around $500,000, up roughly 1 percent from the year before, with the average home taking 53 days to sell, up from 48 days the prior year. Pull a different snapshot from July 2026 and the median reads closer to $534,900. Neither number is wrong. They're measuring slightly different windows with slightly different methods, and the gap between them is a preview of a much bigger discrepancy waiting one layer down.
That bigger discrepancy shows up when you compare median sale price to average listing price. Active listings tracked across the Bellevue zip code as of late July 2026 numbered 202, averaging $822,761, with prices spanning from $175,000 up to $4,999,999. That average sits roughly $300,000 above the median sale figure. A gap that size usually means one thing: a cluster of expensive, still-unsold inventory is dragging the average away from where most transactions actually land.
In Bellevue, that cluster has an address. It's called Stephens Valley.
The Line Nobody Draws on a Map
Most of what people mean when they say "Bellevue" sits in Davidson County, the consolidated city-county government that includes Nashville proper. Homes along the Old Hickory Boulevard and Highway 70 South corridor, the Colonials and ranch houses from the 1980s through 2000s in neighborhoods like Harpeth Valley Park and Bellevue Manor, fall under Metro Nashville's jurisdiction. That's the Bellevue most listing photos show you.
Stephens Valley is different. The community sits off Sneed Road, about 20 miles from downtown Nashville and 12 miles from Franklin, on 980 acres the Stephens family owned as a working farm going back to the 1930s. Rochford Realty and Construction Company began developing the land in the mid-2010s, with a plan that keeps more than 550 acres untouched and protects roughly 90 percent of the property's trees through conservation easements. The single-family homes built there carry a Nashville mailing address, but the parcels themselves sit across the line in Williamson County. That means Williamson County Schools instead of Metro Nashville Public Schools, and it means a different, lower county tax rate than the rest of the zip code pays. It's a detail that catches plenty of house hunters off guard, since nothing about the street, the mailbox, or the listing photos announces a change in jurisdiction.
The community is still filling in. Plans call for roughly 780 residential units across multiple phases, with around 200 completed as of an early 2026 count. Builders active there include Rochford, along with Legend Homes, Celebration Homes, and DeFatta Custom Homes, working on lots and floor plans that run well above what the rest of the zip code typically lists for.
Two Bellevues, Side by Side
| Core Bellevue (Davidson County) | Stephens Valley (Williamson County) | |
|---|---|---|
| Typical price range | $350,000 to $750,000 | $700,000 to $1.5 million and up |
| Recent active-listing average | Zip-wide average $822,761 (as of July 29, 2026) | $1,797,367 across 12 active listings in a spring 2026 snapshot (May 10, 2026) |
| Average price per square foot | Around $310 | Around $433 to $447 based on recent sales and active listings |
| Property tax rate | Davidson's Urban Services District rate, $2.814 per $100 of assessed value for the 2025 tax year, with bills that came due February 28, 2026 | Williamson County's rate, approximately $1.73 per $100 of assessed value |
| School system | Metro Nashville Public Schools | Williamson County Schools |
| Typical market pace | Correctly priced homes closing in 30 to 40 days | New construction, priced and marketed on a builder's timeline rather than a resale clock |
The price gap alone would be enough to explain why Bellevue's average listing price looks nothing like its median sale price. The tax gap is the part most buyers don't think to ask about until it's already on their closing disclosure.
What the Tax Line Actually Costs You
Tennessee assesses residential property at 25 percent of its appraised value statewide, so the math works the same no matter which side of the county line you're on. What changes is the rate you multiply by.
Take an $800,000 home. Its assessed value, for tax purposes, is $200,000.
- On the Davidson County side of Bellevue, at $2.814 per $100 of assessed value, that works out to roughly $5,628 a year.
- On the Williamson County side, at approximately $1.73 per $100, the same assessed value comes to roughly $3,460 a year.
That's a difference of more than $2,100 a year for an identical appraised value, purely a function of which side of an invisible line the parcel sits on. It's a real, recurring cost that a buyer comparing two similar-priced Bellevue listings might never think to price out separately, because both listings say the same city and the same zip code.
Why the ZIP-Wide Average Doesn't Mean What You Think
Put the pieces together and the picture is clearer. Bellevue's zip-wide average listing price looks inflated next to its median sale price because a meaningful share of that active inventory, the Stephens Valley new construction, is priced in an entirely different tier and sitting on the market on a builder's schedule rather than a resale timeline. That inventory isn't wrong to include in a zip-wide average. But treating the zip-wide average as a stand-in for "what a Bellevue home costs" will steer a buyer's expectations in the wrong direction, whether they're budgeting for a $450,000 resale on the Davidson side or a $1.2 million new build across the line.
The same logic applies in reverse for sellers. A homeowner in one of the established Davidson County subdivisions pricing against the zip-wide average risks overshooting what buyers in that specific price tier are actually willing to pay, since much of what's pulling the average up isn't really their comparable set at all.
What This Means If You're Comparing Neighborhoods
If you're cross-shopping Bellevue against other parts of Nashville, treat the zip code as a starting point, not an answer. A few things worth doing before you fall for a specific listing:
- Confirm the county for any specific address, especially anything near Sneed Road or marketed as part of Stephens Valley. A Nashville mailing address doesn't guarantee Davidson County jurisdiction.
- Ask what school system the parcel is zoned to, since that follows the county line, not the zip code.
- Factor the property tax rate into your monthly payment comparison the same way you'd factor in HOA dues. On a $700,000-plus home, the difference between the two county rates can run into thousands of dollars a year.
- Compare median sale prices, not average listing prices, when you're trying to gauge what a specific price tier in Bellevue actually costs. The average will always be skewed by whatever new construction happens to be active at the time.
You can check current rates directly with Williamson County's property tax office, and it's worth doing that verification before you tour rather than after you've written an offer.
For context on how this part of Bellevue got its retail anchor and its foot traffic, the redevelopment of the old Bellevue Center mall site, demolished in 2015 and reopened as a mixed-use center in 2017, is part of why the broader area has drawn steady demand on both sides of the county line. That demand is real. It's just being priced across two different tax systems that happen to share a mailing address.
A Couple of Questions Worth Asking
How do I find out which county a specific Bellevue address is in before I tour it? Don't rely on the mailing address or the zip code alone. Ask your agent to confirm the parcel's county assignment before you schedule a showing, particularly for anything in or near Stephens Valley. The property's parcel ID, available through the relevant county's assessor records, will settle it.
Does buying in the Williamson County section affect resale value down the road? Current data shows the Williamson County side of Bellevue commanding meaningfully higher prices per square foot, roughly $433 to $447 compared to the zip-wide average near $310, but that reflects new construction pricing today rather than a guarantee about future resale. Anyone weighing that tradeoff should look at actual closed comparables in that specific price tier rather than the zip-wide average.
Comparing Bellevue to another Nashville-area neighborhood, or trying to figure out which side of a line like this one makes sense for your budget, is exactly the kind of question worth working through with someone who tracks these details for a living. Jackie Roth Karr has spent years in Middle Tennessee's neighborhoods, subdivisions, and county lines alike. Let's Connect and talk through what your specific search should actually be comparing.
