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324 Onyx Avenue Newport Beach, CA 92662
$3,295,000 6 beds, 4 baths
2, 242 sqft
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Photo of Jimmy Harmantzis

Jimmy Harmantzis REALTOR® - Broker Associate 949-212-2023 m
949-212-2023 o
Lic#: 01234982
NRDS ID: 641526390
JimmyHarmantzis@bhhscal.com
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Lic#: 01234982
NRDS ID: 641526390
JimmyHarmantzis@bhhscal.com
Mission Viejo Office
23120 Alicia Parkway, Suite 100
Mission Viejo, CA 92692
Phone: 949-768-1000
Fax: 949-587-0915
Mission Viejo 23120 Alicia Parkway, Suite 100
Mission Viejo, CA 92692
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Fax: 949-587-0915
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Agent Remarks

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.

Listing Details

Property type: Duplex (Single Family)
Status: Pending
MLS# NP25021775
List price is $3,295,000
HOA Fee is $0.00
Beds: 6
Baths: 4 (1 full) (1 half)
Living Room fireplaces
Built in 1937
2,242 sqft
2 stories
0.06 acres
Lot size: 0.0585
Subdivision: Balboa Island - Main Island (BALM)
County: Orange
Lot description: Rectangular Lot
Heating/cooling: None
MLS area: N9 - Lower Newport Bay - Balboa Island

Last Updated: 4/11/2025

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This listing belongs to the N9 - Lower Newport Bay - Balboa Island MLS area

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Lat/Long: 33.608072, -117.890322.
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Listing Agent: Ryan Gunderson
Lic#: 01234982
Office Name: Mission Viejo

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Area Overview

Total population of , which has changed by % since 1990.
The median age of the population is , while the median age of dwellings is .
Out of households, are families.

Community Characteristics:

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Population by Gender

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Photo of Jimmy Harmantzis

Jimmy Harmantzis REALTOR® - Broker Associate 949-212-2023 m
949-212-2023 o
Lic#: 01234982
NRDS ID: 641526390
JimmyHarmantzis@bhhscal.com
Text Me
Call My Cell
Call My Office
Lic#: 01234982
NRDS ID: 641526390
JimmyHarmantzis@bhhscal.com

Mission Viejo Office
23120 Alicia Parkway, Suite 100
Mission Viejo, CA 92692
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© 2025 Berkshire Hathaway HomeServices California Properties (BHHSCP) is a member of the franchise system of BHH Affiliates LLC. BHHS and the BHHS symbol are registered service marks of Columbia Insurance Company, a Berkshire Hathaway affiliate. BHH Affiliates LLC and BHHSCP do not guarantee accuracy of all data including measurements, conditions, and features of property. Information is obtained from various sources and will not be verified by broker or MLS. Buyer is advised to independently verify the accuracy of that information.
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