If you only read one San Diego housing number this month, you will get the story wrong. The San Diego housing market in October 2026 is not one market. In September, detached homes and attached homes — condos and townhomes — moved in opposite directions on supply, split on price, and left buyers and sellers in two very different negotiations. Add the week's other headline — Freddie Mac's 30-year average holding at 7.40% on October 15 after seven straight weekly increases — and you have a market where the right move depends entirely on which segment you are in.

The September split, in numbers

Start with the latest complete month. According to the September 2026 Monthly Indicators report for San Diego County from the San Diego MLS (prepared by ShowingTime Plus, data current as of October 5, 2026), the county's overall median price rose 1.7% from September 2025. Underneath that calm headline: detached homes rose 5.8% year over year to a $1,079,000 median, while attached homes eased 0.2% to $670,000. Both medians slipped from August — a reminder that a year-over-year gain is not a guarantee about next month.

Activity cooled even as prices held. Closed sales fell 14.0% and pending sales fell 15.9% from a year earlier, and overall active inventory fell 4.8%. But that inventory total hides the split: detached supply fell while attached supply rose. San Diego MLS September reporting put detached homes at about 2.4 months of supply and attached homes at about 4.0 months. In plain terms, a well-priced house in La Jolla, Carmel Valley, or Pacific Beach is still a scarce product. A condo buyer in Little Italy, Mission Valley, or North Park-adjacent corridors has real choice — and time.

Why sales fell but prices did not

Timing explains a lot of the apparent contradiction. September closings were mostly deals signed weeks earlier, before mortgage rates crossed and then climbed past 7%. The volume drop — fewer closings, fewer pendings — is the rate shock arriving. The price resilience is the supply shortage refusing to leave, at least for detached homes.

Two clocks make the point. Homes that actually closed in September did so at a median of 17 days on market for houses and 27 days for condos and townhomes. Yet Reports on Housing, in its September 29, 2026 snapshot, put expected market time — the inventory on the shelf divided by the current pace of new pendings — at 103 days for houses and 144 days for condos and townhomes. Both can be true: the right homes, priced to the payment buyers can actually carry, still move in weeks. The overpriced or undifferentiated stock is what piles up and stretches that second clock. If you are selling, you are not competing with the median. You are competing with the shelf.

Rates: the climb paused at 7.40% — a pause is not a drop

On October 15, Freddie Mac's Primary Mortgage Market Survey put the 30-year fixed-rate average at 7.40%, unchanged from the week before, with the 15-year at 6.71%, down slightly from 6.73%. Trade coverage of the release noted that the flat week ended seven consecutive weekly increases and left the 30-year at its highest level since November 2023. A year ago, the 30-year averaged 6.27% and the 15-year 5.52%.

Translate that into a payment, because payments are what buyers actually buy. On an $800,000 loan, principal and interest on a 30-year fixed runs about $5,539 a month at 7.40%, versus about $4,936 at last year's 6.27% — roughly $603 more a month for the same house. That math is why my playbook from when rates first crossed 7% still applies, and why sellers cannot price as if financing were free. It is also why a single flat week matters less than people hope: 7.40% held is not 6.40% returned. Buyers who need to move should shop lenders, price the buydown, and keep the refinance option in the plan — not bet the purchase on a forecast. My breakdown of how a real valuation works shows how that payment reality feeds directly into what a home can appraise and sell for.

Selling a house is not selling a condo right now

If you own a detached home: scarcity is still your friend, but it is a pickier friend than it was in 2021. At 2.4 months of supply, a move-in-ready home priced against today's competition — not last spring's headline — can still draw strong interest. Price for the buyer's payment at 7.40%, front-load the condition and the photography, and treat the first two weeks as the market's honest verdict. Sellers who chase the market down in $10,000 steps usually net less than sellers who price the split correctly on day one.

If you own a condo or townhome: you are selling into 4.0 months of supply and a buyer who has alternatives in the same complex and the next one over. That means your competition is visible, unit by unit, and buyers will compare HOA dues, parking, and days on market as hard as they compare your kitchen. A condo that is the sharpest option in its stack — priced under the closest comparable, presented impeccably — still sells. The third-best option at the highest price waits, and the expected-market-time clock above is mostly measuring that wait.

For buyers: shop the segment, not the slogan

County-wide labels — "buyer's market," "seller's market" — will mislead you this fall. Condo buyers have the most leverage they have had in years: more supply, flat prices, sellers who may discuss terms, credits, or a rate buydown. Detached buyers have leverage too, but it is selective: it lives in the listings that have sat, the price reductions, and the homes whose sellers need a date more than a number. In both segments, a full pre-approval and a payment you have stress-tested at today's rate beat a guess about where rates go after the Federal Reserve meets later this month. Browse the neighborhood guides to see how differently this plays out block by block — supply in Del Mar is not supply in North Park.

The bottom line

San Diego did not soften in September. It split. Houses stayed tight enough to push the detached median up 5.8% even as sales fell 14%; condos loosened enough to give buyers a genuine negotiation; and rates stopped climbing — at 7.40%, not at a comfortable number. The owners and buyers who do well in a split market are the ones who stop quoting the county average and start reading their own segment. If you want that read for your home — what segment you are really in, and what it is worth in it — request a free home valuation or message me "VALUE" on Instagram @socalbestrealtors and I will walk the numbers with you.