If you have spent any time comparing San Jose's Rose Garden and Willow Glen neighborhoods, you have probably seen the medians. Willow Glen looks like the pricier of the two. Rose Garden looks like the value play. Then you check back a few months later and the gap has moved by hundreds of thousands of dollars, sometimes in the opposite direction. That whiplash is not a market correction. It is a warning about what these numbers can and cannot tell you.
The number that shouldn't move that much
In March 2026, Rose Garden's median sale price sat at $1,635,000 while Willow Glen's came in at $1,867,500, a gap of more than $230,000 in Willow Glen's favor. By June 2026, Rose Garden's median had climbed to $1,958,207, essentially erasing the gap and pulling ahead of Willow Glen's $1,864,351. Willow Glen barely moved between those two windows. Rose Garden swung by roughly 20 percent in three months.
Neither number is wrong. Both are accurate reflections of whatever handful of homes closed escrow in that window. That is the problem. Rose Garden is a small enough neighborhood that its monthly and even quarterly median gets set by which specific houses happened to sell, not by any broad shift in what buyers are willing to pay. A single $3 million architect rebuild closing next to three modest bungalows can swing the median by six figures. Willow Glen has enough sales volume, roughly 140 to 150 homes closing in a typical month, to smooth some of that out. Rose Garden, a much smaller and more inventory-constrained pocket, does not.
The takeaway for anyone comparing these two neighborhoods on price alone: a single month's median is closer to a snapshot of who happened to sell than a signal of where values are heading. If you are underwriting an offer based on "the neighborhood median," you are underwriting based on noise.
What price per square foot actually reveals
There is a steadier number underneath the noisy one, and it tells a more interesting story. In that same March 2026 window, Rose Garden's price per square foot ran $1,160 compared to Willow Glen's $1,080, even while Rose Garden's headline median sat well below Willow Glen's. A neighborhood with the lower sticker price was commanding a higher rate per square foot.
That is not a contradiction once you look at what is actually being sold in each neighborhood.
| Metric | Rose Garden | Willow Glen |
|---|---|---|
| Median sale price, March 2026 | $1,635,000 | $1,867,500 |
| Median sale price, June 2026 | $1,958,207 | $1,864,351 |
| Price per square foot, March 2026 | $1,160 | $1,080 |
| Median days on market, March 2026 | 10 | 10 |
| Typical housing stock age | Median year built 1940 | Mostly built 1885 to 1955 |
Willow Glen's price is largely a price on finished living space. The neighborhood's identity runs through Lincoln Avenue, where longtime restaurants like The Table and Braise anchor a walkable dining strip, and buyers are paying for a turnkey home in a cohesive, well-preserved district. Rose Garden's price per square foot is doing something different. It is pricing the land underneath the house, not just the house.
The lot economics behind the premium
Rose Garden's housing stock skews older and its lots skew larger, a combination that turns into real optionality under California's SB9 lot-split and duplex law. San Jose adopted its SB9 implementation ordinance early and applies a 4-foot setback standard for new SB9 units, and the city allows ADUs to stack on top of SB9 rights, meaning a single Rose Garden parcel can, in the right configuration, support far more built square footage than the original single-family home ever carried. As of early 2026, the city reported approving more than 1,400 ADU and SB9 units since adopting its ordinance, and it has extended SB9-style flexibility into historic areas and onto pre-1950 structures pending historic review, a detail that matters directly in Rose Garden, where parts of the neighborhood sit on the city's Historic Resources Inventory.
This is not theoretical. Current Rose Garden listings include a 10,450 square foot lot marketed explicitly as a fixer or teardown with room for an ADU addition, a Thomas James Homes spec rebuild slated for summer 2026 completion with a main-floor ADU built in from the start, and a Veev-built home marketed with room for an ADU or a full SB9 lot split, all within walking distance of the Rose Garden Branch Library and the Rosicrucian Egyptian Museum. Buyers who split a lot under SB9 do take on real costs: all-in expenses for the split itself, separate from any new construction, typically run $30,000 to $80,000 in the Bay Area, and the owner has to sign an affidavit committing to occupy one resulting unit for at least three years. But on a lot large enough to clear that bar, the math has room to work.
Willow Glen has plenty of ADU activity too, but its narrative is different. Buyers there are largely paying for the finished product and the established Lincoln Avenue lifestyle, not for what the dirt underneath could someday become.
The downtown premium that hasn't shown up yet
Both neighborhoods get marketed as minutes from a downtown San Jose in the middle of a transformation, and for years that pitch leaned heavily on one project: Google's Downtown West campus near Diridon Station. That project is worth understanding on its own terms before anyone treats proximity to it as a value driver.
Google spent roughly $532 million assembling more than 80 acres for the campus, on a full build-out once projected at close to $19 billion. The San Jose City Council approved the development agreement unanimously in 2021, and that agreement locked in a list of community benefits but gave Google wide latitude on timing, with no contractual penalty if the project simply never gets built. Google paused the effort in 2023 and ended its partnership with developer Lendlease. As of reporting earlier this year, much of the site still sits as cleared, fenced-off blocks near the old Orchard Supply Hardware footprint, with the city holding little legal recourse to force construction. A separate account notes the project was projected to generate about $79 million a year in property tax revenue that has not materialized, and that Google has leased out a few warehouses on site while declining at least one offer from an existing tenant, a bike shop, to simply buy its space outright.
None of that means downtown San Jose stays frozen forever. It does mean that any premium buyers assume they are paying for "proximity to the coming transformation" is resting on a project that has already missed its own timeline by years, with no mechanism forcing it back on track. Rose Garden and Willow Glen are both close to downtown today. Neither is close to the downtown Google originally promised, because that downtown does not yet exist.
What this means if you're choosing between them
If you want a finished, walkable neighborhood built around an established main street, Willow Glen is pricing that correctly. You are paying for square footage, location on or near Lincoln Avenue, and a housing stock that has already been renovated by the previous generation of buyers.
If you are drawn to Rose Garden's Municipal Rose Garden and Rosicrucian Museum blocks and you are comfortable underwriting a remodel, an ADU, or an SB9 split, the higher price per square foot starts to make sense as a bet on land, not just on the house that happens to be sitting on it today. That is a legitimate strategy. It is just a different strategy than buying finished square footage in Willow Glen, and it should be underwritten on its own terms, with your own construction and permitting numbers, not on the assumption that a nearby downtown boom is already baked into the price.
FAQ
Is Rose Garden actually cheaper than Willow Glen? It depends entirely on which month you check. Rose Garden's median has swung from below Willow Glen's to above it within a single quarter in 2026, driven by low transaction volume rather than a shift in underlying demand. Price per square foot is a steadier comparison, and on that measure Rose Garden has consistently run higher.
Can I do an SB9 lot split on a historic Rose Garden property? San Jose has extended SB9-style flexibility to historic areas and pre-1950 structures, but it is subject to historic review, and parts of Rose Garden sit inside the city's Historic Resources Inventory or a conservation area. Confirm your specific address's status before assuming a split is straightforward.
Should I pay a premium for being near the future Downtown West campus? Be cautious about it. The project has been cleared and fenced for years with no enforceable deadline, and the tax revenue and jobs it was supposed to generate have not yet arrived. Price the home on what exists today, not on a campus that may or may not break ground on any particular timeline.
Numbers like these are exactly why a side-by-side spreadsheet from a portal only gets you halfway to a real answer. If you are weighing Rose Garden against Willow Glen, or any other South Bay neighborhood, and want someone who will run the actual lot economics with you rather than just the headline median, Brandon Gummow and the Gummow Brothers team can walk through what a specific property, and a specific budget, can really do.
