The California housing market posted its largest year-over-year sales decline since March 2014 and remained below the 400,000-level sales benchmark for the second consecutive month in September, the CALIFORNIA ASSOCIATION OF REALTORS® reported late Monday.
Closed escrow sales of existing, single-family detached homes in California totaled a seasonally adjusted annualized rate of 382,550 units in September. September's sales figure was down 4.3% from the revised 399,600 level in August and down 12.4% compared with home sales in September 2017 of 436,920.

"The housing market continued to deteriorate and the decline in sales worsened as interest rates remained on an upward trend. More would-be buyers are self-sidelining as they believe home prices will start to come down soon, making housing more affordable despite rising interest rates," said C.A.R. President Steve White. "Tax reform, which increases the cost of homeownership, also is contributing to the decline, especially in high-cost areas such as the San Francisco Bay Area and Orange County."
The statewide median home price dropped to $578,850 in September. The September statewide median price was down 2.9% from $596,410 in August but up 4.2% from a revised $555,400 in September 2017.
"Price appreciations have slowed in the last few months and inventory has risen considerably since June when the statewide median price hit a new peak," said C.A.R. Senior Vice President and Chief Economist Leslie Appleton-Young. "Buyers are becoming increasingly concerned about market developments and are reluctant to purchase at the prevailing market price. As such, the deceleration in price growth will likely continue in coming months."
Other key points from C.A.R.'s September 2018 resale housing report include:
- On a regionwide, non-seasonally adjusted basis, the Southern California region led the state's sales decline, falling 17.3% from a year ago. Los Angeles County experienced the largest drop in the region at 22%, while Orange County declined 21.8%. Sales in the Inland Empire were down 10.8% from a year ago, with Riverside and San Bernardino counties recording an annual sales decline of 9.7% and 12.4%, respectively.
- Sales in the Bay Area declined 16.4% from September 2017, the largest decline since October 2010. Santa Clara posted the largest drop at 22.6%, while Marin experienced the lowest decline at 1.1%. Alameda(-10.4%), Contra Costa (-17.3%), Napa (-14.2%), San Francisco (-11.5%), San Mateo (-14.6%), Solano (-19.3%), and Sonoma (-19.4%) counties all posted double-digit declines.
- Although Glenn and Kings counties posted annual sales gains of 9.1% and 11.1%, respectively, sales for the Central Valley Region as a whole were down 15.1% from a year ago. Every other county of the region posted declines from a year ago.
- While home prices continue to grow in the Bay Area, the rate of appreciation has slowed since the first half of the year. In September, the median price in the Bay Area increased 9.8% from last year, lower than the average year-over-year growth rate of 14.9%. Three counties continued to show double-digit growth compared with the previous year: San Mateo (14.2%), San Francisco (11.7%) and Marin (11.6%).
- Sales in Los Angeles and Orange counties both dropped 20% in September, which is taking a toll on the price appreciation of each county and the Southern California region as a whole. The Los Angeles Metropolitan Area had the lowest year-over-year growth rate of 3.4% in September among all major regions. Individually, Los Angeles County and Orange County had the smallest growth rates of 4.7% and 3.3%, respectively, among all counties within the region. Riverside and San Diego also had modest growth rates of around 5% in September, while Ventura and San Bernardino had more robust price appreciation at 10.6% and 7.5%, respectively.
- Statewide active listings rose for the sixth consecutive month following 33 straight months of declines, increasing 20.4% from the previous year. September's listings increase was the biggest in nearly four years.
- At the regional level, the San Francisco Bay Area increased the most in active listings, with a surge of 44% year over year. The increase was most obvious in Santa Clara, as the county's active listings more than doubled (+113%) from last September. The Southern California region and the Central Valley region also had substantial gains in active listings, with year-over-year increases of 23% and 13%, respectively.
- The Unsold Inventory Index, which is a ratio of inventory over sales, rose again in September from 3.3 months in September 2017 to 4.2 months in September 2018. The index measures the number of months it would take to sell the supply of homes on the market at the current sales rate.
- The median number of days it took to sell a California single-family home ticked up from 20 days in September 2017 to 23 days in September 2018, a sign that market competitiveness is not as heated as in 2017.
- C.A.R.'s statewide sales price-to-list price ratio* hit the lowest level in 20 months but was down from a year ago at 98.5% in September 2018 compared with 99.1% in September 2017. The decline indicates that buyers may have more negotiation power in the current market than a year ago.
- The average statewide price per square foot** for an existing, single-family home statewide was $282 in September, up from $270 in September 2017, but dipped slightly from $283 in August 2018.
- The 30-year, fixed-mortgage interest rates averaged 4.63% in September, up from 3.81% in September 2017, according to Freddie Mac. The five-year, adjustable mortgage interest rate also increased in September to an average of 3.94% from 3.16% from September 2017.