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This spacious single-story home in guard-gated Harbor Ridge has a modern French Country design with beautiful views plus a sense of privacy and seclusion. Offering a traditional yet flowing floorplan, 18 San Sebastian is ideal for entertaining and enjoying indoor-outdoor living. The 4,243 sq. ft. home features formal living room with fireplace, a formal dining room, and a large island kitchen that is sure to be the heart of the home. The kitchen has Bosch and Dacor appliances, including two dishwashers, ovens, and microwaves, and a large walk-in pantry, along with a large skylight filling the kitchen and adjacent dining area with plenty of natural light. The family room is accented with warm dark wood beams, a brick fireplace, and a bar, which leads to a cozy walk-in wine room. The expansive primary suite offers a sitting area with a fireplace, a spa-like bathroom with separate his and her sinks and closets, and French doors that open to ocean and city light views. Two spacious secondary en-suite bedrooms have French doors that open to a wrap-around patio that leads to a large greenhouse and the backyard with plenty of room for outdoor dining and entertaining. The backyard also has a water feature with a koi pond, as well as stunning views of Newport Harbor, the ocean, and city lights. There are ample closets and storage throughout the home, including the garage, which has extensive built-in cabinetry and workspace for hobbies, crafts, and tinkering. The garage has the potential for parking six cars. Complete with a large deck at the back of the property that provides expansive views, this home is ideally located, offering privacy on a spacious 15,600 sq. ft. lot.
Listing agent: Jon Flagg DRE #01316048 jonflagg@msn.com, Listing office: Villa Real Estate
MLS data updated 11/2/2026, 3:31:01 PM PT
Source: CRMLS, MLS #: NP22058426
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
May 2, 2022
Prices use the left axis; mortgage rates use the right. Hover, tap, or focus the chart and use the arrow keys. Red SOLD badges mark recorded sales.
This home · nearest recorded event
$4,425,000Closed sale · May 2, 2022ZIP 92660 · May 2022
No monthly averageAt least 3 eligible sales in this month are required.30-year fixed mortgage benchmark
No weekly rateNo published rate within 7 days of this date.ZIP averages use publicly displayable closed sales from our licensed MLS feed, matched to the same ZIP and exact property type. Months with fewer than 3 sales are omitted; the current month is incomplete. Lines connect available monthly observations across gaps and do not represent measured prices in missing months. These averages are not adjusted for size, condition, or location within the ZIP, and are not an appraisal. Feed coverage may not include every sale. All available shows the available home and ZIP history, with mortgage rates over the same dates.
Mortgage benchmark: Freddie Mac Primary Mortgage Market Survey®. © Freddie Mac. Weekly national 30-year fixed rates, not APRs or a loan quote. Actual terms vary. Methodology changed in November 2022. The chart does not establish that interest-rate changes caused a home’s price changes.
Lines connect recorded asking and sale prices. They are visual guides, not estimates of the home’s value between those dates.
No earlier records were returned by our current sources. This does not mean the home has never sold.
MLS records may be incomplete. Earlier asking prices are not sale prices.