Pull up the housing data for Willow Glen South-Lincoln Glen this summer and you will find two numbers that cannot both be describing the same neighborhood. The average sale price in the trailing month sits near $2.5 million, up close to 39 percent from a year earlier. The median sale price over the three months ending June 2026 came in at $2.0 million, down 5.9 percent over the same stretch. Same streets. Same zip code boundary. Same thirty-five closed sales in June, down from forty-two the year before.
If you are shopping this pocket of San Jose with a specific budget and a specific kind of house in mind, that gap is not a rounding error. It is the whole story, and it hinges on something most buyers never think to ask: how many houses actually closed, and what were they.
Why thin markets lie to averages
Thirty-five sales in a month is not a lot of data. When a market that small includes even two or three homes at the very top of the price range, the average gets pulled hard in that direction while the median, which simply finds the middle value and ignores how far the outliers sit above it, barely moves.
That is exactly what is happening here. Willow Glen South-Lincoln Glen has an active pipeline of ground-up new construction commanding prices well above the neighborhood's older housing stock. Thomas James Homes currently lists farmhouse-style spec homes in the neighborhood with five bedrooms and five and a half bathrooms, built new rather than remodeled. Aro Homes has a project underway on Vistamont Drive in South Willow Glen designed by Olson Kundig and built to a carbon-negative standard. A rebuilt residence just off The Gates, one of the neighborhood's most established enclaves, went back on the market in 2026 as a full teardown-and-rebuild with a 48-inch Miele range and a butler's kitchen.
Every one of those sales is real. None of them is what a typical 1950s or 1960s ranch house on a standard lot actually sold for this spring. That is what the median is telling you, and it says the resale market cooled by almost 6 percent even as headline averages soared.
What stayed the same tells you as much as what changed
Days on market held steady at 15 in June 2026, identical to June 2025. That consistency matters. If demand had genuinely collapsed alongside the softer median, homes would be sitting longer while sellers waited out buyers. They are not. Homes here still move in two weeks. The most plausible reading is not that this neighborhood cooled in any broad sense. It is that fewer typical resale buyers competed against each other this year, while a handful of much larger transactions, tied to new builds rather than existing housing stock, did the heavy lifting on the average.
Here is what that split looks like side by side, using the trailing windows each figure is drawn from:
| Metric | Window | Figure | Change vs. prior year |
|---|---|---|---|
| Average sale price | Last month (June 2026) | ~$2.5M | up ~39% |
| Median sale price | 3 months ending June 2026 | $2.0M | down 5.9% |
| Median price per square foot | 3 months ending June 2026 | $1.14K | down 0.18% |
| Homes sold | June 2026 | 35 | down from 42 |
| Days on market | June 2026 | 15 | unchanged from 15 |
The price-per-square-foot line is the quiet tell. It barely moved. If genuinely comparable homes were commanding radically different prices, you would expect price per square foot to swing along with the average. It did not, because the average isn't being driven by comparable homes. It's being driven by a different category of product entirely.
One Redfin boundary, several different markets
Willow Glen South-Lincoln Glen is not a single price tier wearing one name. Ask anyone who has shopped here and they will point you to distinct pockets that trade at distinct levels, even though they all fall inside the same neighborhood boundary on a map.
The Gates and the adjacent Willow Ranch streets carry the most prestige and the steepest price floor, especially now that rebuild activity has picked up there. Listings describe homes in this stretch as offering the character of an established neighborhood paired with the quiet of a low-traffic street, and recent rebuilds nearby have leaned into high-end finishes that push them toward the top of the range rather than the middle.
The Fairglen tract, built out with Eichler homes designed for indoor-outdoor mid-century living, sits at a more attainable point on the spectrum, particularly for homes that have not yet been expanded or fully modernized.
Scattered through the rest of the boundary are the standard-issue ranch homes built from the 1940s through the 1960s that make up the bulk of actual resale transactions, the ones the median is tracking even while new construction and rebuilds near The Gates get most of the attention.
If you are comparing this neighborhood to another one using a single average, you are almost certainly comparing the wrong tier of home. A buyer shopping Fairglen against a listing near The Gates is not shopping the same market even though both addresses fall inside the same Redfin polygon.
Why the rebuilds keep coming
Part of what is fueling this new-construction wave traces back to state housing law. San Jose approved a rezoning in late 2023 that let a Los Altos-based developer replace a single lot on Lincoln Avenue with five new homes, streamlined under state density rules that limit how much a city can push back once a project qualifies. One planning commissioner objected on the record at the time, noting that the resulting homes would sell for roughly $3 million each, which he argued undercut the affordability rationale behind the law. The rezoning passed anyway.
That same state pressure surfaced again more recently in a separate fight over a proposed seven-story apartment building near Willow Street and Kotenberg Avenue, which neighbors argued would strain parking and infrastructure in a neighborhood built almost entirely around single-family lots. San Jose's compliance status with state housing mandates limited how much the city could resist.
Neither project sits inside Willow Glen South-Lincoln Glen's specific boundary, but both illustrate the same underlying dynamic playing out closer to home: state law is making it easier to replace older, smaller lots with denser or larger new construction, and builders are responding. That is the supply feeding the average-price outliers you are seeing in this neighborhood's headline numbers today.
What this means if you are shopping or selling here
If you are pricing a resale home for the market, the median, not the average, is your comp. A seller who anchors expectations to the $2.5 million average is benchmarking against new-construction product that does not resemble a decades-old ranch house, no matter how nicely it has been updated.
If you are a buyer hoping the 39 percent average jump signals a neighborhood pricing you out, look at the median and the flat price per square foot first. The underlying resale market has not repriced anywhere near that dramatically. What has changed is which kind of home is closing.
And if you are choosing between Willow Glen South-Lincoln Glen and a neighboring pocket of San Jose, ask which specific streets you are actually comparing. The Gates, Willow Ranch, and Fairglen are not interchangeable just because they share a boundary line on a map.
A short FAQ
Does the 39 percent average increase mean home values here jumped that much? No. It means the mix of homes that sold changed. The trailing month included enough high-priced new construction and rebuild sales to pull the average sharply upward while the broader three-month median, a better measure of the typical resale home, actually declined 5.9 percent.
Should I use the average or the median to price my home? For an existing resale home, the median and price per square foot are the more reliable anchors. The average is currently being shaped by a small number of ground-up new builds that do not reflect what a standard existing home on a standard lot will command.
Numbers this close to the surface rarely tell the whole story on their own, and a neighborhood this varied deserves a walk down its specific streets before you commit to a price in either direction. If you are trying to figure out what your own home is actually worth in this kind of market, or which pocket of Willow Glen South-Lincoln Glen fits what you are looking for, Suzanne O'Brien can walk you through the comparable sales that matter for your address. Request a complimentary home valuation and market consultation to get numbers built around your street, not the whole boundary line.