This classic Balboa Island cottage offers far more than meets the eye, with five bedrooms in the main home and an additional bedroom in the separate downstairs apartment—providing plenty of space for friends and family. The main house features a spacious front patio, an expansive living room with vaulted ceilings and a brick fireplace. There’s a charming window seat in the dining area and a well-designed kitchen. Just three doors from North Bayfront and steps from Marine Avenue’s shops and restaurants, this convenient location means the best of the Island is steps away, and getting on and off the Island is a snap. A wider-than-average two-car garage adds valuable parking, while the separate apartment offers flexibility as a guest suite, income property, or potential expansion of the main home into a downstairs primary suite or additional living space. Lovingly owned by the same family since 1969, this classic Island cottage is now ready for a new chapter.
Sold for $3,200,000
Listed by: Arbor Real Estate • Ryan Gunderson • Contact: 949-873-3841
Bought with: Seven Gables Real Estate
Tax assessed value
$3,200,000
324 Onyx Ave, Newport Beach, CA 92662
6beds
2,242sqft
Duplex
Built in 1937
2,550 Square Feet Lot
$3,268,600 Zestimate®
$1,427/sqft
$8,835 Estimated rent
Home value
$3,268,600
$3.01M - $3.56M
$8,835/mo
Zestimate® history
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Zillow last checked:
Listing updated:
Listed by:
Ryan Gunderson DRE #01869795 ryan@arborrealestate.com,
Arbor Real Estate
Bought with:
Dean O'Dell, DRE #01060767
Seven Gables Real Estate
Source: CRMLS,MLS#: NP25021775
Originating MLS: California Regional MLS
Originating MLS: California Regional MLSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 4
- Full bathrooms: 1
- 3/4 bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 2
- Main level bedrooms: 1
Rooms
- Room types: Bonus Room
Cooling
- None
Appliances
- Laundry: In Garage
Features
- Flooring: Brick, Carpet, Wood
- Has fireplace: Yes
- Fireplace features: Living Room
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 2,242 sqft
Property
Parking
- Total spaces: 2
- Parking features: Garage - Attached
- Attached garage spaces: 2
Features
- Levels: Two
- Stories: 2
- Entry location: 1
- Pool features: None
- Has view: Yes
- View description: Bay
- Has water view: Yes
- Water view: Bay
Lot
- Size: 2,550 Square Feet
- Features: Rectangular Lot
Details
- Parcel number: 05015209
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Duplex
Condition
- New construction: No
- Year built: 1937
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Features: Sidewalks
- Subdivision: Balboa Island - Main Island (Balm)
Location
- Region: Newport Beach
Financial & listing details
- Price per square foot: $1,427/sqft
- Tax assessed value: $3,200,000
- Annual tax amount: $36,798
- Date on market: 1/30/2025
- Cumulative days on market: 57 days
- Listing terms: Cash to New Loan
Price history
| Date | Event | Price |
|---|---|---|
| 5/13/2025 | Sold | $3,200,000-2.9%$1,427/sqft |
Source:  CRMLS #NP25021775 Report a problem | ||
| 4/11/2025 | Pending sale | $3,295,000$1,470/sqft |
Source: CRMLS #NP25021775 Report a problem | ||
| 3/29/2025 | Contingent | $3,295,000$1,470/sqft |
Source: CRMLS #NP25021775 Report a problem | ||
| 2/20/2025 | Listed for sale | $3,295,000$1,470/sqft |
Source: CRMLS #NP25021775 Report a problem | ||
| 2/14/2025 | Contingent | $3,295,000$1,470/sqft |
Source: CRMLS #NP25021775 Report a problem | ||
| 1/31/2025 | Listed for sale | $3,295,000$1,470/sqft |
Source: CRMLS #NP25021775 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $36,798 +672.4% | $3,200,000 +1774.9% |
| 2024 | $4,764 +3.1% | $170,678 +2% |
| 2023 | $4,619 +128.6% | $167,332 +2% |
| 2022 | $2,021 +1.9% | $164,051 +2% |
| 2021 | $1,983 +1% | $160,835 +1% |
| 2020 | $1,963 | $159,186 +2% |
| 2019 | $1,963 +1.8% | $156,065 +2% |
| 2018 | $1,927 +3.8% | $153,005 +2% |
| 2017 | $1,857 | $150,005 +2% |
| 2016 | $1,857 +2.2% | $147,064 +1.5% |
| 2015 | $1,817 +3.6% | $144,855 +2% |
| 2014 | $1,754 | $142,018 +0.5% |
| 2013 | -- | $141,377 +2% |
| 2012 | -- | $138,605 +2% |
| 2011 | -- | $135,888 +0.8% |
| 2010 | -- | $134,873 -0.2% |
| 2009 | -- | $135,194 +2% |
| 2008 | -- | $132,544 +2% |
| 2007 | -- | $129,946 +2% |
| 2006 | -- | $127,399 +2% |
| 2005 | -- | $124,901 +2% |
| 2004 | -- | $122,452 +1.9% |
| 2003 | -- | $120,208 +2% |
| 2002 | -- | $117,851 +2% |
| 2001 | $1,195 +2.7% | $115,541 +2% |
| 2000 | $1,164 | $113,276 |
Find assessor info on the county website
Neighborhood: 92662
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Nearby schools
GreatSchools rating
- 9/10Abraham Lincoln Elementary SchoolGrades: K-6Distance: 1.7 mi
- 8/10Corona Del Mar High SchoolGrades: 7-12Distance: 1.9 mi
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Estimated market value
$3,268,600
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Estimated market value
$3,268,600
- California
- Orange County
- Newport Beach
- 92662
- 324 Onyx Ave
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