Contra Costa County Housing Market Update, September 2026: Is It a Good Time for First-Time Buyers in Antioch, Pittsburg, Oakley, or Brentwood?

Yes — for first-time buyers, September 2026 is shaping up to be one of the more favorable windows to buy a house in Contra Costa County in recent years. The most recent county data, from August 2026, shows active listings up 13.2% year-over-year, with homes sitting on the market for a median of 38 days instead of selling within days. The intense multiple-offer competition that defined the last few years has eased in much of East County heading into September. Homes are still selling close to asking price, so this isn't a market where sellers are desperate — but buyers now have real room to compare properties, negotiate repairs and terms, and make a considered decision instead of a rushed one.

Here's what the latest available data actually shows, and what it means if you're shopping in Antioch, Pittsburg, Oakley, Bay Point, or Brentwood this September.

At a glance — Contra Costa County, August 2026 (most recent data):

• Active listings: ~3,551 countywide, up 13.2% year-over-year
• Median listing price: $774,713 (down ~2.4% year-over-year)
• Median days on market: 38 days (vs. 13-22 days earlier in 2026)
• Sale-to-list price ratio: ~100-101% (still close to full asking price)

What Do the Latest Numbers Show?

As of the most recent county reporting in August 2026, there are approximately 3,551 homes for sale across Contra Costa County, with a countywide median listing price of $774,713. Homes are spending a median of 38 days on the market before going into contract — a meaningful shift from the 13-to-22-day timelines seen earlier this year and in past peak-competition periods. Listing prices are down about 2.4% from a year ago, even as sale prices in some segments have continued to inch upward, which tells you sellers are having to price more realistically to attract offers.

At the same time, homes are still closing at roughly 100-101% of asking price countywide, so this is not a market where you should expect steep discounts across the board. What's changed isn't that homes are cheap — it's that you're no longer forced to compete against a dozen other buyers just to get your offer looked at.

Why Is Inventory Rising Heading Into Fall?

Active listings climbed 13.2% year-over-year through the first eight months of the fiscal year, continuing a trend that's been building through 2026. More sellers listing, combined with buyers taking longer to commit due to elevated borrowing costs, has shifted the supply-demand balance further toward buyers than it's been in several years — without tipping fully into a buyer's market. Early fall is typically a season where serious sellers who didn't sell over the summer adjust pricing to compete, which can work in a patient buyer's favor.

What This Means If You're a First-Time Buyer Right Now

You have time to actually think. A 38-day median days-on-market means you're rarely forced into a same-day offer decision. You can schedule a second showing, get a contractor's opinion on that roof, and sleep on it.

You can ask for things again. Inspection contingencies, repair credits, and even seller-paid closing cost concessions — all of which nearly disappeared during the hottest years of the market — are back on the table in a meaningful share of transactions, especially on homes that have been sitting for three or more weeks.

You're not competing against 10 other offers on every listing. Multiple-offer situations still happen on well-priced, move-in-ready homes in desirable pockets, but they're no longer the default outcome on every listing the way they were in 2021-2022 or even parts of 2024-2025.

Pricing still matters, and so does preparation. Sellers are adjusting list prices to match this slower pace, but well-priced, well-presented homes in good condition are still moving quickly and sometimes still drawing multiple offers. Being pre-approved, ready to move, and clear on your must-haves still matters — you're just not fighting as uphill a battle to get there.

Where Is This Playing Out Most in East County?

Inventory increases have been broad-based across the county, but East County cities — Antioch, Pittsburg, Oakley, Bay Point, and Brentwood — remain the most accessible entry points on price for first-time buyers, and the additional breathing room in days-on-market gives buyers in these cities more leverage to negotiate than they've had in the recent past. Tighter-inventory pockets closer to Walnut Creek, Pleasant Hill, and Lafayette are still seeing faster-moving, more competitive conditions, so how much leverage you actually have depends heavily on which specific city and price range you're shopping in.

Should You Wait for Prices to Drop Further, or Buy Now?

This is the question every buyer asks, and there's no universal right answer — but a few things are worth weighing. Rising inventory has softened competition, not collapsed prices; the countywide median is still up from a year ago in some measures. If mortgage rates ease later this fall or into 2027, more buyers are likely to re-enter the market, which could tighten competition again even if prices stay flat. Waiting for the "perfect" combination of low prices and low rates has historically cost more buyers opportunity than it's saved them in cost. The more useful question isn't "will it get cheaper," but "can I comfortably afford a home at today's numbers, with today's negotiating room" — because that combination of factors won't necessarily hold through the fall and into next year.

Frequently Asked Questions

Is Contra Costa County a buyer's market right now? Not fully — homes are still selling close to asking price, so it's more accurately described as a more balanced market than a true buyer's market. But buyers have meaningfully more room to negotiate and less pressure to rush than in recent years.

How much has inventory actually increased? Active listings are up 13.2% year-over-year as of the county's most recent mid-year economic report, with roughly 3,551 homes for sale countywide as of the latest August 2026 data.

Are homes still getting multiple offers? Yes, but less consistently. Well-priced, move-in-ready homes in desirable areas still attract multiple offers, but it's no longer the default outcome on every listing the way it was in recent peak-competition years.

What's the best move for a first-time buyer this September? Get pre-approved, know your target cities and price range, and be ready to act on well-priced homes while taking advantage of the added time and negotiating room on everything else. Conditions vary significantly by city, so local guidance matters more than countywide headlines.

About the Author Steve Brookshire is a REALTOR® (DRE #01724870) with HomeSmart Optima Realty, serving first-time buyers and sellers throughout Contra Costa County and parts of Alameda County, with a focus on Bay Point, Pittsburg, Antioch, Oakley, and Brentwood.

Last Updated: September 11, 2026

Sources: Realtor.com August 2026 listing and days-on-market data (most recent available); Contra Costa County mid-year economic report (active listings, year-over-year); Redfin July 2026 sale price and close-to-list data.