Brentwood vs. Tri-Valley Home Prices: What the Gap Buys

A homeowner in Pleasanton or Dublin starts looking at single-story floor plans, and sooner or later the search map slides east over the hills to Brentwood. The prices look like a typo. The questions that follow are fair ones: is the difference real, and what does it buy once you add everything up?

Yes, the gap is real. For the three months ending September 2026, Redfin put Brentwood's median sale price at about $745,000, against about $1.5 million in Pleasanton. That's roughly $750,000 less for a Brentwood home, and well under half the price per square foot. The tradeoff is mostly the drive.

The gap at a glance (Redfin, three months ending September 2026)

• Brentwood median sale price: $744,645, down 3.9% from a year earlier
• Pleasanton median sale price: $1,496,787, down 3.5%
• Price per square foot: $342 in Brentwood, $783 in Pleasanton
• Nearest BART: Antioch. Brentwood has no station of its own

Why Brentwood is the value play

Brentwood is where a Tri-Valley budget stretches. The same money goes a lot further here, often into a newer single-story with room left over.

The price per square foot shows it best. A median moves with whatever size of home happened to sell that month. Price per square foot strips some of that out, and the gap holds: $342 a square foot in Brentwood against $783 in Pleasanton, for the same three months.

A median isn't your house. Brentwood's blends new subdivisions, 1990s tracts, gated 55+ streets like Trilogy, and larger parcels near the farmland. Use it to decide whether a move is worth exploring, then we price real homes.

Decide one thing before we tour, too: the same budget buys either a bigger home or a smaller payment. Those are two different searches.

What the gap means for a monthly payment

Prices are hard to feel. Payments aren't. On a 20%-down purchase, a $750,000 price difference means borrowing about $600,000 less. At any rate we've seen in recent years, that's thousands of dollars a month in principal and interest that stays in your pocket, or goes into a larger home.

Your own numbers depend on your rate, credit, and down payment, so this is a comparison, not a quote. I worked the lending side before I ever held a listing, and the first thing I do with a buyer is swap in their real numbers.

Your tax base can come with you

If you're 55 or older, Proposition 19 works in your favor. The State Board of Equalization says you can transfer your current home's taxable value to a replacement anywhere in California, up to three times, as long as you buy or build within two years of selling. When the replacement is of equal or lesser value, the value transfers with no adjustment. A Pleasanton sale into a Brentwood purchase usually clears that test easily. My Prop 19 explainer covers the timing.

Prop 19 carries your taxable value and nothing else. A Mello-Roos line on the new tax bill and any HOA dues come with the house. My Mello-Roos guide shows how to check an address before you offer.

What Brentwood asks of a commuter

Lower prices come with a longer trip for anyone still working west or south. The Tri-Valley has BART inside its borders. Brentwood doesn't. The closest station is Antioch, at the end of the Yellow Line, and by car most trips start on Highway 4. I've mapped the bus, parking, and on-demand options in my Brentwood-to-BART commute guide.

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Weighing a Tri-Valley sale against a Brentwood purchase? Tell me your current city and the kind of home you want here, and I'll lay the two payments side by side with your own numbers in them, not the medians. Call or text (925) 200-0717 — I pick up myself.

This post is for general informational purposes only and isn't legal, tax, or lending advice. Market figures change monthly, and Prop 19 eligibility and capital gains treatment depend on your circumstances. Confirm the details with the Contra Costa County Assessor, a California tax professional, or your lender before acting.

Margie Lupo, Broker Associate, SRES® · eXp Realty of Northern California, Inc. · DRE #01193496 · Brokerage DRE #02188495 · Equal Housing Opportunity

Sources

• Redfin, Brentwood housing market — three months ending September 2026
• Redfin, Pleasanton housing market — same window
• California State Board of Equalization, Proposition 19 — 55+ tax base transfers