Buyers comparing a resale condo in Sunnyvale don't just look at the last few comparable sales. They also look at what a builder a few miles away will do for them. At Toll Brothers' The Station, the October 3 to 18 sales event offered one year of paid HOA dues on select homes. It also offered a first-year rate of 4.75% on a jumbo 5/1 ARM with a 2/1 buydown, at 7.39% APR, on select homes. An individual seller can't match that kind of financing package through list price alone. That gap goes a long way toward explaining why Sunnyvale now has two housing markets moving in opposite directions under one city name.
Two markets, one September
Sunnyvale's September 2026 numbers from RE Report, which draws on MLSListings data, show the split clearly.
| September 2026, Sunnyvale | Single-family | Condo |
|---|---|---|
| Median sale price | $2,835,000 | $1,267,500 |
| Change vs. September 2025 | +2.7% | −5.8% |
| Sale-to-list ratio | 106.8% | 102.6% |
| Days on market | 11 | 29 |
| Days of inventory | 21 | 59 |
| Active listings | 33, flat year over year | 43, up 10.3% |
In September 2026 the single-family side closed 46 sales against 33 active listings. When more homes close in a month than are listed for sale, every new listing faces a crowd of buyers. Days of inventory, meaning how long current listings would last at the current pace of sales, fell to 21.
On the condo side, the same month went the other way. Days on market rose to 29 from 25 a year earlier, and days of inventory rose to 59 from 51. The average condo price fell 11.6% year over year, about twice the drop in the median. Condos still sold above list on average at 102.6%, so this is not a distressed market. Bids above asking are smaller, though, and listings sit longer.
Sunnyvale houses are beating the county. Sunnyvale condos are matching it.
The countywide figures show which half of Sunnyvale is the outlier. In September 2026, the Santa Clara County single-family median was $1,965,500, down 1.5% year over year, with homes selling at 103.6% of list after 26 days on market. Sunnyvale houses beat every one of those measures. They sold faster, drew bigger premiums over asking, and posted a price gain while the county posted a decline.
County condos looked a lot like Sunnyvale condos. In September 2026 the county condo median was down 8.1% year over year. Sale-to-list slipped to 100.1% from 100.4%, active listings rose 17.9% to 711, and days of inventory rose from 81 to 89. Condos averaged 39 days on market, compared with 26 for houses.
So Sunnyvale's attached market isn't a local problem. It follows a county trend. The single-family market is where Sunnyvale stands out. That matters for a buyer comparing cities, because what Sunnyvale's location and employers add to prices shows up mostly in detached homes. Attached homes are priced more like attached homes anywhere else in the county.
Where new construction lands on the price ladder
Builder pricing matters because of where it falls relative to resale. In September 2026 the resale condo median was $1,267,500. At The Station, which sells from a sales center at 306 Tea Tree Terrace, quick-move-in condos in the Outlook collection were listed from $999,000 to $1,699,000. Quick-move-in townhomes in the Terraces collection ranged from $1.47 million to $2.32 million, with the same HOA-dues and buydown offer on select homes. Homes Built for America was marketing its Vida townhomes as a "Final Opportunity," starting at $1,599,000.
New construction in Sunnyvale isn't a separate luxury tier sitting above resale. It sits right on top of the resale median. A buyer with roughly $1.3 million to spend can choose a resale condo that is several years old or a new unit with a subsidized first-year rate and a year without HOA dues.
A 2/1 buydown typically lowers the rate for the first two years before it resets to the note rate. That is why the advertised 4.75% first-year rate and the 7.39% APR are so far apart. The APR reflects the cost of the loan over its term. The first-year rate reflects what a buyer pays at the start. Buyers who mostly look at monthly cost at move-in see the lower number. A resale seller selling the same buyer a similar monthly cost has to get there through price, a credit, or both.
The data supports the competition from new construction. It does not prove that new construction caused the resale softness. No source isolates the effect, and the county-wide condo slowdown suggests that broader forces are at work too. What the numbers do show is that, as of October 2026, resale and new attached homes in Sunnyvale are competing for the same buyer at the same price.
Why the HOA line weighs more on attached homes now
The second pressure on attached homes is the carrying cost every condo and townhome owner shares. CalMatters reported in June 2026 that California HOA fees run near a $300 monthly median, while Bay Area dues sometimes reach several thousand dollars. HOA budgets split maintenance, repairs, and insurance across owners. The same article covered a San Diego County association that raised dues by $100 a month to $550, and a state senator who cited rising insurance bills as one cause of HOA fee increases. That example is from Southern California, not Sunnyvale, and it shows a statewide pattern rather than local proof.
Lending rules connect insurance costs to the buyer's mortgage. Fannie Mae's Selling Guide, in a section dated August 2026, sets master-policy requirements for condo loans that Fannie Mae purchases. Lenders must verify that the policy covers common elements and residential structures, unless the project documents require individual unit policies instead. Coverage generally must equal at least 100% of replacement cost, and where a master policy is required, the premium is paid as an HOA common expense. When those premiums rise, they pass to every owner through dues.
That is why a year of prepaid dues at The Station competes on more than price. It offsets one of the carrying costs that has been rising for attached homes in 2026. A resale seller can offer a similar credit, but it has to be negotiated and it comes out of the seller's net proceeds.
Supply already approved
Supply is not about to tighten in Sunnyvale's attached segment. The Registry reported on August 26, 2026 that the Sunnyvale Planning Commission approved City Ventures' 137-unit townhome project. The site is a vacant 4.44-acre industrial parcel at Kifer Road and Uranium Drive. The project uses a state density bonus and is the first residential project in the far reaches of the Lawrence Station Area Plan. No sales launch or pricing has been announced. Approval only means more new townhomes are in the pipeline, with builder-style marketing likely to come with them.
The single-family market has nothing similar. With 33 active listings and 46 closings in September 2026, Sunnyvale houses face a shortage, not a pipeline of new competition.
The number that could close the gap
One figure cuts against the soft-condo story. In September 2026, Sunnyvale condo pending sales rose to 31, up 40.9% from August and 47.6% from September 2025. Closed sales fell to 21. Pending sales are contracts that have not closed yet, so they lead closed sales by weeks. If those contracts close in October and November, the next report could show the attached market firming even as active listings keep rising.
For a buyer, that means the negotiating room in Sunnyvale's attached market shows up clearly in September's closings but may not last. For a seller, it means pricing should be measured against two benchmarks: recent resale comparables, and what the nearest builder is offering on its quick-move-in homes that month.
Questions buyers and sellers ask about this split
Does the condo price decline mean Sunnyvale condos are losing value? The September 2026 median was 5.8% below September 2025, while sale-to-list stayed above 100%. Median prices also move with which homes happen to sell in a given month. The year-over-year drop, longer days on market, and higher inventory together point to a softer market, not a falling one.
Are builder incentives available on every new home? No. The Station's offers apply to select homes, and the posted event runs October 3 through 18. Builder promotions change often, so any comparison should use the terms in effect at the time.
Why compare Sunnyvale to the county at all? Because it shows which side of the split is unusual. Sunnyvale condos tracked the county trend in September 2026. Sunnyvale houses outperformed it on price, speed, and sale-to-list.
Does this data cover every sale in Sunnyvale? RE Report's figures come from listings that originate in MLSListings. A small number of listings entered through other MLS systems may not be included.
If you own a Sunnyvale condo or townhome, your realistic price depends on what nearby builders are offering as much as on last month's comparable sales. Adela Gildo-Mazzon prepares pricing analyses that factor in both, so you can see your position before you list. Request a Confidential Home Valuation.
This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.
