El Niño and King Tides: What a Wet Coastal Winter Does, and Doesn't Do, to Your Home's Appraised Value
A strong El Niño and three rounds of king tides (November 24–26, December 23–25 and January 21–22) are on the way. Storm damage to a home shows up in its appraisal like any other condition issue, but one wet winter doesn't reset what a neighborhood is worth, and water in the street isn't damage to the house. Fix and document what you can before the inspection.
Forecasters expect a strong El Niño this winter. NOAA has had an El Niño advisory in place since late summer, and its outlooks give coastal Southern California better-than-normal odds of a wet winter from December into spring. Those are odds, not a promise of storms. On top of that, the California Coastal Commission lists three rounds of king tides, the highest tides of the year: November 24–26, December 23–25 and January 21–22. NOAA's predictions for Newport Beach put the highest on the morning of November 25, close to two feet above a normal high tide. I've been appraising in Orange County for 24 years, and I already know the question I'll hear from homeowners and attorneys: what does a bad storm season do to what my house is worth?
The honest answer is less dramatic than the headlines, and more specific.
An appraisal values the home as it is on the effective date
Every appraisal has an effective date. For a sale, a refinance or a pre-listing report, that's usually the day of the inspection. I value the home in the condition I find it that day, against what similar homes have actually sold for.
So if a storm leaves a roof leak, a soaked slope or a damaged retaining wall, that condition is part of the appraisal. It isn't a penalty for the weather. It's the cost and the hassle a buyer would face to put it right, and buyers price that in.
One wet winter doesn't reset a neighborhood
What a storm season usually does not do is knock down the value of every home on the street. Comparable sales move on months of buyer behavior, not a week of rain. A neighborhood's value can shift over time if a problem keeps coming back, like repeat flooding on the same blocks or a bluff that keeps losing ground. That's a long-term pattern, and I look for it in the sales data, not in the forecast.
King tides: street water isn't house damage
King tides push water into a handful of low-lying Orange County streets most winters, mainly on Balboa Island and parts of Newport Beach, Huntington Harbour and Seal Beach. When they line up with storm surf, the water goes further. A few hours of water in the street is a nuisance, not a value change. What an appraisal weighs is whether water reaches the home, the home's elevation compared with nearby sales, flood-zone status (which affects whether a lender requires flood insurance), and anything that's been disclosed. If you live in one of those areas, photograph the king tide mornings. It shows exactly where the water goes, and where it doesn't.
Just over the county line, Long Beach sees the same thing, and often more of it. The Peninsula and the streets around Alamitos Bay, including Naples and Bay Shore Avenue, are some of the lowest-lying homes in the region. The city builds a sand berm on the Peninsula every winter, and big tides with surf have still pushed water and sand into those streets. The appraisal questions are the same there as on Balboa Island: did water reach the home, how does its elevation compare with nearby sales, what's the flood zone, and what's been disclosed.
What I look at after a storm
Drainage and slopes. Water that pools against the foundation or a hillside that's moved. On the canyon and hillside lots in Laguna Beach, San Clemente and Dana Point, this matters more than anywhere else in the county.
Roof and interior water. Stains, soft drywall, musty rooms. Even repaired damage is worth documenting.
Retaining walls and hardscape. Cracks or lean that weren't there before.
Location patterns. Whether the street or tract has a record of the same problem in past winters.
If you're selling or ordering an appraisal this winter
Fix what you can before the inspection, and keep the receipts. A repaired leak with an invoice reads very differently from an open stain.
Tell me about storm damage up front. I'd rather hear it from you than find it.
If the timing matters, order sooner. A pre-listing appraisal done before the heavy months gives you a clear baseline.
When the date matters more than the weather
For estates, the value has to reflect a specific past date, usually the date of death. If a storm damages a home after that date, the appraisal still values the home as it was on that day. More on that on our date of death appraisal page.
The bottom line
El Niño can damage individual homes, and that damage shows up in an appraisal the way any condition issue does. It doesn't, by itself, rewrite what a neighborhood is worth. If you have questions about a specific property this winter, call us.
Frequently Asked Questions
Will El Niño lower my home's value?
Not by itself. An appraisal reflects the home's condition and recent comparable sales. Storm damage to your home affects its value until it's repaired. A single wet season rarely moves neighborhood values on its own.
Should I wait until after the rainy season to get an appraisal?
Not usually. If you need a value for a sale or a filing, the effective date is what matters. Fix and document any damage, and order when you need it.
Do king tides lower home values?
Street flooding alone rarely does. Water that reaches the home, repeat damage, or a site lower than nearby comparable homes can. This winter's king tides are November 24–26, December 23–25 and January 21–22.
Does repaired storm damage still affect value?
Properly repaired damage with documentation generally carries far less weight than open damage. Keep the invoices and permits.
Just Appraisals, Inc. provides independent, USPAP-compliant residential appraisals across Orange County, including San Clemente, Dana Point, the Lagunas, San Juan Capistrano, Irvine and Newport Beach. We specialize in date-of-death and estate valuations, divorce and litigation appraisals, and pre-listing and private-fee assignments for attorneys, agents, and homeowners. More about my background here.
Need a value on a coastal property this winter? Get in touch.