$7,950,000
4Beds5Baths2,312SqFt
225 DiamondNewport Beach, CA 92662Balboa Island - Main Island
330 Onyx Avenue, Newport Beach, CA 92662
$7,990,000
144 Days On Site
Est. $51,833/mo with 20% down, 30-year fixed
- Beds
- 4
- Baths
- 6
- Sq Ft
- 3,300
- Per Sq Ft
- $2,421
- Sq Ft Lot
- 3,398
- Built
- 2023
- Garage
- 3-car
Call Clark Smith (949) 494-8830
Subdivision Balboa Island - Main Island
22 single-family homes sold in the past 12 months · median $3,670,000
About 330 Onyx Avenue
Rare Opportunity on Balboa Island -
Just off Marine Avenue, this nearly new residence sits on an oversized, premium lot and redefines modern coastal living. Large windows frame island views throughout, filling the home with natural light and blurring the line between indoor and outdoor space.
The residence offers four en suite bedrooms, two additional powder rooms, and a layout built for both everyday living and effortless entertaining. The gourmet kitchen pairs premium appliances with refined finishes and opens to an inviting interior courtyard — a rare architectural touch that brings even more light and air into the home's center. Upstairs, the rooftop deck delivers island and water views alongside a fireplace, built-in BBQ, and outdoor TV — an entertainer's dream setting for sunset gatherings. The primary suite is a true retreat, with soaring ceilings and an expensive walk-in closet.
Thoughtful details set this home apart: solar power, a private elevator servicing all three levels, an outdoor shower, EV charger, and a rare three-car garage — a coveted convenience on the island.
Moments from Newport's famous beaches, Lido Island, Fashion Island, and John Wayne Airport, this is a rare chance to own one of Balboa Island's finest residences, with easy access to water sports, world-class shopping, and fine dining.
Property details for 330 Onyx Avenue
This 4-bedroom, 6-bath single-family home sits in the Balboa Island - Main Island neighborhood of Newport Beach in Orange County. It offers 3,300 square feet of living space and is listed at $7,990,000, about $2,421 per square foot. The home was built in 2023. The MLS record lists the assessor parcel number as 050-152-07. Highlights include bay and city lights views, a fireplace, an attached three-car garage, a 3,398-square-foot lot, and central air. The detail sections on this page cover interior and exterior features, estimated taxes, HOA dues where they apply, and the map location.
Home Details
- Price
- $7,990,000
- Days On Site
- 144 Days
- Bedrooms
- 4
- Inside Area (SqFt)
- 3,300 sqft
- Total Baths
- 6
- Full Baths
- 2
- Partial Baths
- 4
- Lot Size
- 3,398 SqFt
- Year Built
- 2023
- MLS® Number
- OC26098230
- Status
- Active
- Property Tax
- N/A
- HOA/Condo/Coop Fees
- N/A
- Sq Ft Source
- Estimated
General Features
- Property Type
- Single Family Residence
- MLS Number
- OC26098230
- Year Built
- 2023
- Living Area (sq ft)
- 3,300
- Living Area Source
- Estimated
- Lot Size (sq ft)
- 3,398
- Lot Size (acres)
- 0.078
- Levels
- Three Or More
- Bedrooms
- 4
- Full Baths
- 2
- Half Baths
- 2
- Garage Spaces
- 3
- Parking Spaces
- 3
- View
- Bay, City Lights
- Parcel Number
- 05015207
- On Market Date
- 2026-05-06
- Listing Terms
- Standard
Interior Features
- Interior Features
- Built In Features, Balcony, Elevator, High Ceilings, Wired For Sound, All Bedrooms Up, Primary Suite, Walk In Pantry, Walk In Closets
- Cooling
- Central Air
- Fireplace
- Living Room, Outside
- Laundry
- Inside, Laundry Room
- Main Level Bathrooms
- 1
- Entry Level
- 1
- Common Walls
- No Common Walls
- Rooms
- Other, Pantry, Bonus Room, Bedroom, Primary Bedroom
Exterior Features
- Exterior Features
- Barbecue
- Lot Features
- Rectangular Lot
- Pool Features
- None
- Sewer
- Public Sewer
- Water
- Public
- Units
- 1
Community Features
- Subdivision
- Balboa Island - Main Island (BALM)
- Community Features
- Biking, Curbs, Sidewalks, Water Sports
Property History for 330 Onyx Avenue
| Date | Event | Price | Note |
|---|---|---|---|
| May 6, 2026 | Listed for sale | $8,680,000 |
No prior MLS sales on record for this home since 2012.
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
22Homes sold
$3,670,000Median price
13Median days on market
$2,297Median per sq ft
At $2,421 per square foot, this home's asking price is close to the Balboa Island - Main Island median of $2,297 for single-family homes that closed in the past 12 months.
Recorded MLS closings of single-family homes, Sep 20, 2025 to Sep 20, 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 |
|---|---|---|---|---|---|
| 206 Agate | Aug 31, 2026 | $2,860,000 | 888 | $3,221 | 4 |
| 327 Onyx | Aug 18, 2026 | $3,450,000 | 2,128 | $1,621 | 102 |
| 209 Ruby | Jul 14, 2026 | $3,295,000 | 1,793 | $1,838 | 1 |
| 215 Opal | Jun 30, 2026 | $3,437,500 | 2,226 | $1,544 | 79 |
| 122 Collins Avenue | May 18, 2026 | $3,270,000 | 2,551 | $1,282 | 0 |
School District for 330 Onyx Avenue
As listed in the MLS record. Confirm attendance boundaries with the school district.
The MLS record lists the Newport Mesa Unified.
Living in Newport Beach covers its schools, parks and beaches.
Estimated monthly payment
6.95% · 30-yr fixed$
$60,118/mo
10% down · 30-year fixed · $799,000 down
Principal & interest$47,601
Mortgage insurance (est., over 80% LTV)$2,996
Property tax (est. 1.08%)$7,191
Home insurance (rough est., varies widely)$2,330
HOANot reported, not included
$51,833/mo
20% down · 30-year fixed · $1,598,000 down
Principal & interest$42,312
Property tax (est. 1.08%)$7,191
Home insurance (rough est., varies widely)$2,330
HOANot reported, not included
$46,544/mo
30% down · 30-year fixed · $2,397,000 down
Principal & interest$37,023
Property tax (est. 1.08%)$7,191
Home insurance (rough est., varies widely)$2,330
HOANot reported, not included
Estimated carrying cost
$9,521/mo
All cash · taxes and insurance only
Principal & interestNone (cash purchase)
Property tax (est. 1.08%)$7,191
Home insurance (rough est., varies widely)$2,330
HOANot reported, not included
Estimate only, not a loan offer or quote. Principal and interest use the Freddie Mac 30-year fixed average of 6.95% (week of Sep 17, 2026); your rate will differ. A loan this size is typically a jumbo loan, which prices differently. Tax and insurance are modelled, not billed amounts; tax uses a typical Newport Beach rate, excluding Mello-Roos. Verify all figures. Full assumptions and disclosures.
Buying 330 Onyx Avenue
Want to see 330 Onyx Avenue in person? We have guided buyers through Balboa Island - Main Island and the wider Newport Beach market since 1983. Call to arrange a private tour, or send a note and we'll follow up.
Selling near 330 Onyx Avenue
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Location
Photos of 330 Onyx Avenue, Newport Beach
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Listed by Kristen Peay of Compass
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.
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