Walk along Chamounix Road in Radnor Township and nothing about the pavement changes. Same curb, same tree canopy, same setback from the road. But according to the boundary maps kept by Radnor Township School District, the homes on one side answer to Radnor Elementary School and the homes on the other side, just a driveway away, do not. A few blocks over, Applegate Lane sits inside the Radnor Elementary boundary while Sinkler Road, close enough to see from a second-floor window, does not. This is not a rare edge case. It is how the district's own published boundary documentation describes itself, street by street, for a school system that covers nearly 14 square miles and includes St. Davids in full, plus parts of Wayne, Rosemont, Bryn Mawr, Villanova, Ithan, Newtown Square, and Radnor proper.
Buyers comparing homes across the Main Line tend to treat the town name on a listing as a proxy for the school district. In Radnor Township, that shortcut fails in both directions. A mailing address that says Bryn Mawr or Newtown Square can sit inside Radnor Township School District's boundary. A mailing address that says Wayne, meanwhile, can sit in Tredyffrin/Easttown or Upper Merion instead, because the Wayne postal designation stretches into Chester and Montgomery Counties well beyond the township line. The district and the town name are two different maps drawn for two different purposes, and the only way to know which one governs a given parcel is to check the parcel.
One School System, Several Unrelated Housing Markets
Radnor Township has exactly one public school system, and every student who attends it, from kindergarten through twelfth grade, ends up at the same middle school and the same high school regardless of which of the township's historic communities they live in. That single-district structure creates a useful illusion for anyone skimming market data: it makes Radnor Township sound like one market with one price story. It isn't.
As of June 2026, Wayne's median sale price sat at roughly $1.02 million, up about 7.8% year over year, with homes typically going under contract within about 18 days. As of August 2026, St. David's, a residential pocket inside the same township and the same school boundary, showed a median sale price closer to $750,000, down roughly 45% from the same three-month window a year earlier, a swing large enough to make the two figures barely recognizable as describing the same market twelve months apart. Rosemont, also inside the district, is smaller still, a pocket that typically records only a handful of closings in any given month, thin enough that one high-end estate sale or one starter-home closing can move its median by tens of thousands of dollars. Villanova split even further internally: as of May 2026, neighborhood-level tracking put its broad median at roughly $1.37 million, down about 5% from a year earlier, even as the historic Ardrossan section, still known locally as one of the township's most exclusive addresses, anchors well above that broader figure.
Those aren't rounding differences. They are several distinct housing markets that happen to share a school district, a township government, and in some cases a zip code.
| Area (within or bordering Radnor Township School District) | Recent median sale price | What's driving it |
|---|---|---|
| Wayne | ~$1.02M as of June 2026, +7.8% YoY | High turnover, walkable downtown, consistent demand |
| St. David's | ~$750K as of August 2026, down ~45% YoY | Small sample, sharp single-year swing |
| Rosemont | Too few monthly closings for a stable median | Low transaction volume amplifies swings |
| Villanova (broad) | ~$1.37M as of May 2026, down ~5% YoY | Ardrossan estates skew the top of the range |
| Radnor Township (citywide) | ~$1.11M as of May 2026, +5.9% YoY | Blends all of the above into one number |
Why the Township-Wide Number Keeps Changing Its Story
Two 2026 snapshots of the same township show how easily this scrambles. Citywide tracking put Radnor Township's median sale price at roughly $1.11 million as of May 2026, up 5.9% year over year. A separate market report covering Radnor Township School District, published in February 2026, put the median at $1,150,000, with active listings ranging from $155,000 up to $4,295,000 across roughly two dozen properties on the market at once. The two headline figures land close enough to agree on the broad strokes, but the real story is in that range. A spread of more than $4 million across twenty-five listings in one township is not a market with a single center of gravity. It is several markets averaged together and handed back as one number.
St. David's is the clearest proof of what that averaging can hide. A submarket that showed a median near $750,000 in August 2026, down roughly 45% from the same three-month window a year earlier, did not lose nearly half its value in twelve months. It sold a different mix of homes than it had the year before, smaller or larger, higher-priced or lower. Multiply that effect across five or six submarkets inside one township and the headline number stops measuring value and starts measuring which homes happened to close that quarter.
What This Means When You're Comparing Two Listings
The practical version of all this is simple, even if the underlying geography is not.
If a listing's town name matters to you because of the school district, do not stop at the name. Confirm the parcel against Radnor Township School District's published boundary maps before you get emotionally attached to a house, because the boundary has already been drawn down the middle of specific streets, not around the edges of postal towns. This is a five-minute check, and it is worth doing before an offer, not after one.
If a listing's price is being compared to "the Radnor Township median," ask which slice of the township that median came from and how many sales it was built on. A $1.02 million Wayne median built on dozens of monthly sales tells you something real about that specific submarket. A township-wide figure built by blending Wayne, St. David's, Rosemont, and Villanova together tells you much less, even though it looks like the more authoritative number.
And if you are weighing a Villanova address specifically, recognize that "Villanova" alone spans a price range wide enough to include both entry-level homes and multi-million dollar estates. The name on the listing is doing almost no work to tell you which end of that range you're looking at.
A Few Direct Questions
Does living inside Radnor Township automatically mean my child attends Radnor Township schools? Yes, if the property sits inside the township's boundary. Radnor Township School District is the township's only public school system, so any parcel physically within Radnor Township falls under it. The complication runs the other way: some addresses that carry a Wayne, Bryn Mawr, or Newtown Square postal name sit outside the township line entirely, even though the mail still arrives with that town name on it.
Why do different sources report such different median prices for the same area? Smaller neighborhoods generate fewer monthly sales, and fewer sales means each individual transaction carries more weight in the median. St. David's showed a nearly 45% year-over-year swing between two three-month windows in 2025 and 2026, not because values collapsed, but because the mix of homes that happened to sell changed. A section like Rosemont, with only a handful of closings in a given month, is even more exposed to that same effect.
How do I check which school my exact address feeds into? Radnor Township School District publishes its elementary boundary lines by street name, including the specific stretches where one side of a road feeds a different school than the other. That documentation is the authoritative source, not the town name on a listing sheet.
Radnor Township rewards buyers who do their homework at the street level rather than the township level. If you're comparing homes across Wayne, St. David's, Villanova, Rosemont, or the edges of Bryn Mawr and Newtown Square that fall inside the district, I can walk through the specific boundary and the specific comparable sales for the block you're actually considering, not just the town name on the sign. Christine Langdon — Let's Connect.
