Sold
311 Amethyst Avenue sold on October 6, 2025 for $4,350,000, 1% below the $4,395,000 asking price after 3 days on the market. The buyer paid cash. The details are below for reference.
311 Amethyst Avenue, Newport Beach, CA 92662
- 3 beds
- 4 baths
- 1,890 sq ft
- Built 1956
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$4,350,000
Subdivision Balboa Island - Main Island
14 duplexes sold in the past 12 months · median $3,764,855
The home
About 311 Amethyst Avenue
Outstanding 3-bedroom plus office/flex room, 4-bath turnkey cottage close to town on Balboa Island, combining the charm of classic Island living with today’s modern amenities. The main home features a spacious front patio, dramatic two-story living room with vaulted ceilings, skylights, fireplace, custom woodwork, dining area, upgraded kitchen with high-end appliances, a downstairs bedroom, plus an office/flex room with space for additional sleeping area, full bath, and a private courtyard patio. The second level includes an impressive primary suite with vaulted ceilings, walk-in closet, bath, and a generous deck ideal for lounging, also connecting to the back unit. The fully separate apartment offers vaulted ceilings with skylights, abundant natural light, a large living area with fireplace, full kitchen, bedroom, walk-in closet, and bath. The back unit also benefits from a separate entrance for added convenience. Additional features include air conditioning in both units, laundry area with a beautiful three-quarter bath, and a two-car garage. Don’t miss this incredible opportunity to own a truly special and reimagined Island home.
Property details for 311 Amethyst Avenue
This 3-bedroom, 4-bath duplex sits in the Balboa Island - Main Island neighborhood of Newport Beach in Orange County. It has 1,890 square feet of living space. The home was built in 1956. The MLS record lists the assessor parcel number as 050-142-25. Highlights include a fireplace, an attached two-car garage, and central air.
Specifications
Home Details
General Features
- Property Type
- Duplex
- MLS Number
- NP25196589
- Year Built
- 1956
- Living Area (sq ft)
- 1,890
- Living Area Source
- Estimated
- Lot Size (sq ft)
- 2,550
- Lot Size (acres)
- 0.0585
- Levels
- Two
- Bedrooms
- 3
- Full Baths
- 1
- Garage Spaces
- 2
- Parking Spaces
- 2
- View
- None
- Parcel Number
- 05014225
- On Market Date
- 2025-09-02
- Listing Terms
- Standard
Interior Features
- Interior Features
- Bedroom On Main Level
- Flooring
- Wood
- Heating
- Central
- Cooling
- Central Air
- Fireplace
- Guest Accommodations, Living Room
- Laundry
- Laundry Room
- Main Level Bedrooms
- 1
- Main Level Bathrooms
- 2
- Entry Level
- 1
- Common Walls
- No Common Walls
- Accessibility
- Safe Emergency Egress From Home
Exterior Features
- Lot Features
- Rectangular Lot
- Pool Features
- None
- Sewer
- Public Sewer
- Water
- Public
- Units
- 2
Community Features
- Subdivision
- Balboa Island - Main Island (BALM)
- Community Features
- Sidewalks
The record
Property History for 311 Amethyst Avenue
| Date | Event | Price | Note |
|---|---|---|---|
| Oct 6, 2025 | Sold | $4,350,000 | |
| Sep 19, 2025 | Status changed to Pending | From Active Under Contract | |
| Sep 5, 2025 | Status changed to Active Under Contract | From Active | |
| Sep 2, 2025 | Listed for sale | $4,395,000 | |
| Feb 7, 2014 | Sold | $2,325,000 | TopBroker Network Real Estate |
Added by Realatrends Real Estate
Flood, Fire and Earthquake Zones for 311 Amethyst 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 36 of 36 residential locations in this census block. Cable: Spectrum, up to 1,000 Mbps, at 36 of 36.
FCC National Broadband Map, provider-reported data as of December 31, 2025, for census block 060590630062026, not for this address. Not endorsed by the FCC. Checked October 15, 2026.
- EV charging
Nearest public charger 0.6 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
311 Amethyst 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 311 Amethyst Avenue
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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 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 17 homes for sale in Balboa Island - Main Island Newport Beach housing market
Schools
School District for 311 Amethyst Avenue
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 Ryan Gunderson of Arbor Real Estate
Listing information updated Oct 6, 2025 at 7:58 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.