Sold
306 Sapphire Avenue sold on March 23, 2023 for $2,750,000, 17% above the $2,350,000 asking price after 3 days on the market. The buyer paid cash. The details are below for reference.
306 Sapphire Avenue, Newport Beach, CA 92662
- 2 beds
- 2 baths
- 1,379 sq ft
- Built 1937
Own 306 Sapphire Avenue? Request a free home valuation to see what it is worth today.
$2,750,000
Subdivision Balboa Island - Main Island
14 duplexes sold in the past 12 months · median $3,764,855
The home
About 306 Sapphire Avenue
Located on highly sought-after Balboa Island in Newport Beach, California, this property at 306 Sapphire Ave. presents a unique opportunity for developers or end-users to build their dream house in one of the most desirable locations on the coast.
Currently the property is an old original cottage duplex, but it offers endless possibilities for those looking to create a custom residence on this prime piece of real estate. The property's location on Balboa Island provides an exceptional platform to enjoy the coastal lifestyle, with easy access to the beach, bay, and all of the island's amenities. Public dock access is at the end of the block.
This property's potential is only limited by the imagination of the buyer. Whether you're a developer looking to create a luxury residence, or an end-user looking to build your dream house, this property offers a highly desirable location on the sunny side of street.
Don't miss out on the chance to turn this property into a stunning masterpiece. With its prime location, the option to create something truly special awaits. Contact us today to learn more about this amazing potential project on Balboa Island.
Property details for 306 Sapphire Avenue
This 2-bedroom, 2-bath duplex sits in the Balboa Island - Main Island neighborhood of Newport Beach in Orange County. It has 1,379 square feet of living space. The home was built in 1937. The MLS record lists the assessor parcel number as 050-132-16. Highlights include a fireplace and an attached one-car garage.
Specifications
Home Details
General Features
- Property Type
- Duplex
- MLS Number
- NP23034690
- Year Built
- 1937
- Living Area (sq ft)
- 1,379
- Living Area Source
- Public Records
- Lot Size (sq ft)
- 2,550
- Lot Size (acres)
- 0.0585
- Levels
- Two
- Bedrooms
- 2
- Garage Spaces
- 1
- Parking Spaces
- 1
- View
- None
- Parcel Number
- 05013216
- On Market Date
- 2023-03-03
- Listing Terms
- Standard
Interior Features
- Interior Features
- Ceiling Fans
- Appliances
- Gas Oven, Gas Range
- Heating
- Wall Furnace
- Cooling
- None
- Fireplace
- Living Room
- Laundry
- In Carport
- Main Level Bedrooms
- 1
- Main Level Bathrooms
- 1
- Common Walls
- No Common Walls
Exterior Features
- Lot Features
- Walkstreet, Yard
- Parking
- Garage Faces Rear
- Pool Features
- None
- Sewer
- Public Sewer
- Water
- Public
- Units
- 2
Community Features
- Subdivision
- Balboa Island - Main Island (BALM)
- Community Features
- Curbs
The record
Property History for 306 Sapphire Avenue
| Date | Event | Price | Note |
|---|---|---|---|
| Mar 23, 2023 | Sold | $2,750,000 | |
| Mar 7, 2023 | Status changed to Active Under Contract | From Active | |
| Mar 3, 2023 | Listed for sale | $2,350,000 |
No prior MLS sales on record for this home since 2012.
Added by Realatrends Real Estate
Flood, Fire and Earthquake Zones for 306 Sapphire Avenue
We looked up this home's map point in public government maps. These facts are not part of the MLS listing.
Hazard and noise 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 06059C0382K 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.
- Airport noise
Outside John Wayne Airport's 60 dB CNEL noise contour, 0.9 miles from it.
Airport Land Use Commission for Orange County, Airport Environs Land Use Plan noise contours. Checked October 15, 2026.
Internet and charging
- Fixed internet
Fiber: AT&T, up to 5,000 Mbps, at 33 of 33 residential locations in this census block. Cable: Spectrum, up to 1,000 Mbps, at 33 of 33. Fixed wireless: Verizon, up to 300 Mbps, at 33 of 33.
FCC National Broadband Map, provider-reported data as of December 31, 2025, for census block 060590630062024, not for this address. Not endorsed by the FCC. Checked October 15, 2026.
- EV charging
Nearest public charger 0.7 miles away (Tesla Destination, 2 Level 2 ports). 160 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
306 Sapphire Avenue 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 306 Sapphire Avenue
Thinking of selling nearby? We bring current Balboa Island - Main Island sales data and a clear pricing strategy to every listing, backed by more than 700 closed sales and over $1B in Orange County volume. Start with a free home valuation, or reach out to talk through your options.
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 Island - Main Island home sales, past 12 months
- Homes sold
- 14
- Median price
- $3,764,855
- Median days on market
- 60
- Median per sq ft
- $1,662
Recorded MLS closings of duplexes, Nov 4, 2025 to Nov 4, 2026. Days on market run from listing to going under contract.
Recent Balboa Island - Main Island sales
| Address | Closed | Price | Sq ft | Per sq ft | Days on market |
|---|---|---|---|---|---|
| 224 Amethyst | Sep 29, 2026 | $3,736,710 | 2,805 | $1,332 | 115 |
| 118 Emerald | Aug 20, 2026 | $3,350,000 | 1,893 | $1,770 | 79 |
| 1403 N Bayfront | Aug 3, 2026 | $5,600,000 | 2,105 | $2,660 | 27 |
| 216 Amethyst | Jul 30, 2026 | $3,180,000 | 2,363 | $1,346 | 147 |
| 302 S Bay Front | Jun 25, 2026 | $7,105,000 | 2,926 | $2,428 | 60 |
See 18 homes for sale in Balboa Island - Main Island Newport Beach housing market
Schools
Schools for 306 Sapphire Avenue
As listed in the MLS record. Confirm attendance boundaries with the school district.
- Middle
- Corona Del Mar
- High
- Corona Del Mar
- District
- Newport Mesa Unified
Living in Newport Beach covers its schools, parks and beaches.
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Listed by Arthur Dorr of Balboa Realty
Listing information updated Mar 23, 2023 at 11:15 AM 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.