Bay Area Prices Steady, But Prepare for a 6% Dip by Mid‑2026, Experts Say

Bay Area housing: stabilization amid mixed county results

For buyers and investors watching real estate USA, the San Francisco Bay Area is showing signs of stabilization while staying unpredictable. The California Association of Realtors (C.A.R.) December 2025 report makes that clear: median home price for the Bay Area is $1,200,000, unchanged from December 2024, but down 5.9% from November 2025. That combination—flat year-on-year but weaker month-on-month—captures the market's current tension between persistent demand and short-lived cooling.

I've tracked this market for years and my read is practical: this is not a crash. It is an adjustment shaped by unequal county-level moves, chronically low inventory, and more favorable mortgage rates than a year ago. For anyone buying, selling or investing in Bay Area real estate, the nuance matters: where you look within the nine counties will determine whether you encounter bidding wars or room to negotiate.

Price snapshot: the headline numbers and county splits

C.A.R.'s December data and related Zillow forecasts give us a clear, measurable picture rather than wishful thinking. Key figures:

• Bay Area median home price: $1,200,000 (Dec 2025 vs Dec 2024: no change; vs Nov 2025: -5.9%)
• San Mateo County: $2,058,000 (+11.6% year-over-year)
• San Francisco County: $1,697,500 (+10.9% year-over-year)
• Santa Clara County: $1,830,000 (+1.1% year-over-year, but -5.4% month-over-month)
• Marin County: $1,465,000 (-6.0% year-over-year)
• Napa County: $930,000 (+5.7% year-over-year)
• Contra Costa County: $839,500 (-4.1% year-over-year)

Those county contrasts matter more than the single regional median. San Mateo and San Francisco are heating up, supported by proximity to major tech nodes. Marin and Contra Costa show downward pressure, indicating price dispersion. My assessment is that averages hide local volatility; buyers who shop by neighborhood, not region, will manage risk better.

Sales, momentum and seasonal patterns

Sales activity is equally mixed. The Bay Area recorded a 2.0% increase in sales year-over-year for December 2025, but a 9.3% drop compared with November. Seasonal slowdown and year-end hesitancy explain part of the monthly decline, yet the YOY lift shows sustained interest.

County sales moves were uneven:

• Strong YOY sales gains: San Mateo +25.0%, Sonoma +19.6%, San Francisco +17.9%, Contra Costa +3.8%
• Cooler markets: Alameda -5.7%, Marin -4.5%, Santa Clara -8.9%

The takeaway for investors and buyers: rising sales in some counties signal where demand is concentrated, while drops suggest either affordability limits or a pause for better financing conditions.

Inventory and days on market: why supply still rules prices

Inventory is the structural issue that most shapes Bay Area pricing. The Unsold Inventory Index (UII) for the region was 1.6 months in December 2025, versus the California average of 2.7 months. That is a tight market by any standard and a primary reason prices have not collapsed.

Time on market also shifted slightly: regional median DOM is 29 days, up from 26 a year earlier and 25 in November. In other words, homes are still moving quickly but buyers are taking a little more time.

County-level inventory and DOM show where buyers have breathing room and where they do not:

• Santa Clara: UII 1.0 month; DOM 14 days
• San Mateo: UII 1.0 month; DOM 15 days
• Alameda: UII 1.3 months; DOM 19 days
• Napa: UII 4.4 months; DOM 87 days
• Marin: UII 1.5 months; DOM 86.5 days
• Sonoma: UII 2.4 months; DOM 77 days

If you are buying, target counties with higher UII and longer DOM for negotiating leverage. If you are selling, list in tech-centric pockets where UII is near one month and expect offers to move quickly.

Mortgage rates and affordability: the critical driver for 2026

A major reason the market may tilt toward recovery is mortgage rates. The 30-year fixed-rate averaged 6.19% in December 2025, down from 6.72% a year earlier. That fall increases purchasing power—every tenth of a percent matters when median prices exceed $1 million.

National projections also shape local demand. NAR chief economist Lawrence Yun forecasts existing home sales to rise 6% in 2025 and 11% in 2026, with mortgage rates averaging 6.4% in H2 2025 and 6.1% in 2026. Yun called lower rates a "magic bullet" for reviving demand. I agree that declining rates are the single most direct lever to improve affordability, but they do not change the supply shortage that props up prices.

For buyers tightening budgets, consider adjustable-rate mortgages or 15-year products if refinancing remains an option later. For investors, lower rates can justify higher leverage, but stress-test returns against a Zillow forecast that expects a 6.1% decline in the San Francisco MSA by June 30, 2026.

Zillow and other forecasts: what the models say

Forecasts are not prophecies, but they guide expectations. Zillow reports the San Francisco‑Oakland‑Hayward MSA average home value at roughly $1,152,144, down about 2.5% over the past year. Its short-term forecasts show predicted declines of:

• -1.0% by July 31, 2025
• -3.2% by September 30, 2025
• -6.1% by June 30, 2026

Compared with other California metros, the Bay Area faces a larger near-term correction. For instance, Los Angeles is projected to drop around -1.3% by mid‑2026, and San Diego about -1.5%.