Sold
4103 Seashore sold on January 8, 2026 for $9,200,000, 8% below the $10,000,000 asking price after 31 days on the market. The buyer paid cash. The details are below for reference.
4103 Seashore, Newport Beach, CA 92663
- 7 beds
- 4 baths
- 2,724 sq ft
- Built 1979
Own 4103 Seashore? Request a free home valuation to see what it is worth today.
$9,200,000
Subdivision Balboa Peninsula (Residential)
6 duplexes sold in the past 12 months · median $5,475,000
The home
About 4103 Seashore
Two active short-term rental permits make this oceanfront seven-bedroom duplex one of the most exclusive and desirable investment opportunities in Newport Beach. With permits nearly impossible to obtain, this property offers immediate income potential and exceptional long-term value.
Spanning approximately 2,724 square feet, both residences sit directly on the sand, showcasing sweeping ocean views and effortless indoor-outdoor living. Ideal for a dual-income vacation rental, multi-generational retreat, or a combination of both, this property captures the ultimate coastal lifestyle.
A rare four-car garage provides outstanding parking and storage—an uncommon luxury for an oceanfront property. Perfectly positioned along Seashore Drive, this is a one-of-a-kind opportunity to own a fully furnished, income-generating oceanfront duplex in one of Southern California’s most coveted beachfront locations.
Property details for 4103 Seashore
This 7-bedroom, 4-bath duplex sits in the Balboa Peninsula (Residential) neighborhood of Newport Beach in Orange County. It has 2,724 square feet of living space. The home was built in 1979. The MLS record lists the assessor parcel number as 423-314-05. Highlights include ocean and Catalina views, ocean frontage, a fireplace, single-story living, and an attached four-car garage.
Specifications
Home Details
General Features
- Property Type
- Duplex
- MLS Number
- OC25252893
- Year Built
- 1979
- Living Area (sq ft)
- 2,724
- Living Area Source
- Assessor
- Lot Size (sq ft)
- 2,452
- Lot Size (acres)
- 0.0563
- Levels
- One, Two
- Bedrooms
- 7
- Full Baths
- 4
- Garage Spaces
- 4
- Parking Spaces
- 4
- View
- Catalina, Ocean
- Parcel Number
- 42331405
- On Market Date
- 2025-11-03
- Listing Terms
- Standard
Interior Features
- Cooling
- None
- Fireplace
- Living Room
- Laundry
- Inside
- Main Level Bedrooms
- 3
- Main Level Bathrooms
- 2
- Entry Level
- 1
- Common Walls
- No Common Walls
Exterior Features
- Lot Features
- Rectangular Lot
- Pool Features
- None
- Sewer
- Public Sewer
- Water
- Public
- Units
- 2
Community Features
- Subdivision
- Balboa Peninsula (Residential) (BALP)
- Community Features
- Water Sports
The record
Property History for 4103 Seashore
| Date | Event | Price | Note |
|---|---|---|---|
| Jan 8, 2026 | Sold | $9,200,000 | |
| Jan 7, 2026 | Status changed to Pending | From Active Under Contract | |
| Dec 4, 2025 | Status changed to Active Under Contract | From Active | |
| Nov 3, 2025 | Listed for sale | $10,000,000 | |
| Jul 9, 2022 | Sold | $8,002,000 | Harcourts Prime Properties |
Added by Realatrends Real Estate
Flood, Fire and Earthquake Zones for 4103 Seashore
We looked up this home's map point in public government maps. These facts are not part of the MLS listing.
Hazard zones
- Flood zone
Zone X, 0.2 percent annual chance flood hazard. Outside FEMA's Special Flood Hazard Area.
FEMA National Flood Hazard Layer, FIRM panel 06059C0377K effective March 21, 2019. Checked October 15, 2026.
- Fire hazard severity zone
Not in a fire hazard severity zone on the State Fire Marshal's map.
CAL FIRE, State Fire Marshal map for Local Responsibility Areas, March 24, 2025. Checked October 15, 2026.
- Earthquake fault zone
Outside the Alquist-Priolo Earthquake Fault Zones.
California Geological Survey, Earthquake Fault Zones map, Newport Beach quadrangle, released July 1, 1986. Checked October 15, 2026.
- Liquefaction zone
Inside a Seismic Hazard Zone for liquefaction.
California Geological Survey, Seismic Hazard Zones map, Newport Beach quadrangle, released April 15, 1998. Checked October 15, 2026.
- Landslide zone
Outside the earthquake-induced landslide zones.
California Geological Survey, Seismic Hazard Zones map, Newport Beach quadrangle, released April 15, 1998. Checked October 15, 2026.
- Tsunami hazard area
Inside the Tsunami Hazard Area on the State's evacuation planning map.
California Geological Survey and Cal OES, Tsunami Hazard Area map for Orange County (2021). Checked October 15, 2026.
Internet and charging
- Fixed internet
Fiber: AT&T, up to 5,000 Mbps, at 6 of 6 residential locations in this census block. Cable: Spectrum, up to 1,000 Mbps, at 6 of 6. Fixed wireless: Verizon, up to 25 Mbps, at 6 of 6.
FCC National Broadband Map, provider-reported data as of December 31, 2025, for census block 060590635005001, not for this address. Not endorsed by the FCC. Checked October 15, 2026.
- EV charging
Nearest public charger 0.4 miles away (ChargePoint, 2 Level 2 ports). 114 public charging ports within 3 miles.
U.S. Department of Energy, Alternative Fuels Data Center. Straight-line distance. Checked October 15, 2026.
These facts are for the listing's map point, which can sit off the lot. A zone line can also cross a lot, and agencies revise their maps. In cities, the fire zone line follows the State Fire Marshal's 2025 map; each city adopts its own map and may add areas. These lines are not a Natural Hazard Disclosure. Check the official maps and the seller's disclosures before you rely on them. Sources for the earthquake zone lines: Reproduced with permission, California Geological Survey, Webservice of Official Maps of Alquist-Priolo Earthquake Fault Zones (2025). Reproduced with permission, California Geological Survey, Webservice of Official Maps of Seismic Hazard Zones (2025).
Official maps
Next steps
Looking for something similar
4103 Seashore is no longer on the market, but comparable homes come up in Newport Beach regularly. We can tell you what this one actually closed at and set up alerts for listings that match it.
Selling near 4103 Seashore
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The neighborhood
About Newport Beach
Set along the Pacific in Orange County, Newport Beach surrounds Newport Harbor, where Balboa Island, Lido Isle, and the Balboa Peninsula frame one of California's largest recreational harbors. The city stretches from the Balboa and Newport piers to Corona del Mar and Fashion Island, within the Newport-Mesa Unified School District.
Balboa Peninsula (Residential) home sales, past 12 months
- Homes sold
- 6
- Median price
- $5,475,000
- Median days on market
- 19
- Median per sq ft
- $2,554
Recorded MLS closings of duplexes, Nov 2, 2025 to Nov 2, 2026. Days on market run from listing to going under contract.
Recent Balboa Peninsula (Residential) sales
| Address | Closed | Price | Sq ft | Per sq ft | Days on market |
|---|---|---|---|---|---|
| 5901 Seashore Drive | Jul 31, 2026 | $9,500,000 | 3,185 | $2,983 | 40 |
| 213 33rd Street | May 28, 2026 | $2,616,000 | 1,451 | $1,803 | 7 |
| 1204 E Balboa Boulevard | Feb 5, 2026 | $6,600,000 | 2,516 | $2,623 | 183 |
| 4103 Seashore | Jan 8, 2026 | $9,200,000 | 2,724 | $3,377 | 31 |
| 4208 River | Dec 16, 2025 | $4,350,000 | 1,750 | $2,486 | 6 |
See homes for sale in Balboa Peninsula Newport Beach housing market
Schools
School District for 4103 Seashore
As listed in the MLS record. Confirm attendance boundaries with the school district.
The MLS record lists the school district as Newport Mesa Unified.
Living in Newport Beach covers its schools, parks and beaches.
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Listed by Tara McNabb of Compass
Listing information updated Jan 8, 2026 at 1:35 PM PT. Source: CRMLS.
This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, the Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.