Are Home Prices Going Up or Down in the South Bay? How to Read the Headlines

Are home prices going up or down? The answer depends on which number you are looking at, which time frame it covers, and which part of the South Bay it describes. A national headline, a county median, and the sale price of a home on your street can all move in different directions at the same time.

The short answer: no regional headline can tell you what is happening to your home. Recent sales of comparable homes nearby can.

That is why two articles published the same week can seem to disagree. Dale and Helen walk clients through the same handful of questions to make sense of them. This guide shares those questions.

Year-over-year or month-over-month: which comparison are you reading?

Year-over-year compares a month with the same month one year earlier, for example this October with last October. It filters out the seasons, so it is the better tool for judging whether prices are rising or falling over the longer run.

Month-over-month compares one month with the month right before it, for example October with September. It shows short-term movement, but it is also affected by the season. A shift between two neighboring months may reflect the time of year or a handful of unusual sales, not a change in direction.

Both are accurate. They answer different questions, and a headline that quietly switches from one to the other can make the same market sound very different. When you read a price story, find out which comparison it uses before you draw a conclusion.

How Dale and Helen Help: They show you both comparisons for your area side by side, and they tell you which one fits the decision you are making.

Median price is not the value of your home

Most headlines report a median sale price, the middle price of all the homes that sold in a period. It is useful, but it describes what sold, not what any single home is worth.

The mix of homes that sell can move the median on its own. If more condos and townhomes close in a month, the median can drop even though no individual home lost value. If more large single-family homes close, the median can climb the same way. A median is a summary of sales, so ask what kinds of homes were in it.

Here is a hypothetical illustration (not a real month). Suppose one month's closings are mostly condos and townhomes, and the next month's are mostly single-family homes on larger lots. The second month's median will look much higher, even if every individual home sold for what its twin would have sold for a month earlier. A reader who only sees the two medians would conclude that prices jumped. A reader who asks what kinds of homes sold would not.

The same caution applies to average price, price per square foot, and the gap between list price and sale price. Each one is a different lens, and each can be skewed by a small number of sales in a small area.

A practical rule follows from this: use a headline to decide which questions to ask, and use recent sales of homes like yours to decide what to do. A headline can tell you the temperature of a region. Only comparable sales tell you about your home.

The South Bay is not one market

Cambrian, Campbell, Willow Glen, Sunnyvale, and Almaden Valley each have their own mix of lot sizes, home ages, school areas, and commute patterns. A change in a county-wide number may barely register on a quiet street in one neighborhood and show up strongly in another.

If you are following a specific area, read how it works day to day before you rely on a headline about it. Our neighborhood guides are a good place to start, including Campbell, Willow Glen, and Cambrian. For the latest overview of the region, see our Silicon Valley housing market report.

How Dale and Helen Help: They pull recent sales for your neighborhood and your type of home, then explain what those sales say about your situation, not about the region as a whole.

Five questions to ask about any price headline

1. Which measure is it? Median, average, price per square foot, and list price can tell different stories about the same month.
2. Which period does it compare? Look for year-over-year or month-over-month, and for the months involved.
3. How many sales are behind it? A neighborhood with few sales in a month can swing sharply on two or three closings.
4. Which area and which home type? A county number and a ZIP code number are not interchangeable, and neither is the same as your street.
5. What does it mean for my plan? A buyer, a seller, and a homeowner who is staying put read the same number differently.

How Dale and Helen Help: They treat these five questions as a checklist at the start of every conversation about the market, so you leave with a view of your own home and your own timeline.

Frequently asked questions

Q: Is now a good time to buy or sell in Silicon Valley?
That depends on your timeline, your financing, and the specific area and home type, more than on a single price headline. For a view on the decision itself, see whether to move with today's mortgage rates, or talk it through with Dale and Helen.

Q: What is the difference between median and average home price?
The median is the middle sale price: half of the homes sold for more and half for less. The average adds up every sale and divides by the number of sales, so a few very high or very low sales can pull it away from the middle.

Q: Why do prices seem to change from one report to the next?
Reports differ in the measure they use, the dates they cover, the area they include, and the data source. Small changes in any of those can produce different headlines about the same market.

Q: Where can I find current numbers for my neighborhood?
Dale and Helen pull current local data on request, including recent sales near your home. Start with a home valuation or contact us.

Want the numbers for your own street?

Headlines are a starting point. The useful number is the one built from homes like yours, on streets like yours, over the months that matter to your plan. Dale and Helen will pull recent sales for your street and your type of home, show you how they compare month to month and year to year, and explain in plain language what they do and do not tell you.

If you're considering buying or selling in the South Bay, Dale and Helen would love to help. Call or text us at 408-647-7211. Clear Guidance. Smart Decisions. Exceptional Results.

Posted by Dale Warfel and Helen Gardin, The Warfel Gardin Group at Pulse Real Estate. Every Pulse client works directly with both Dale and Helen, from the first conversation to the day the keys change hands. Visit mypulserealestate.com or call 408-647-7211.