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327 OnyxNewport Beach, CA 92662

For Sale

$4,200,000

Smart Buyer Rebate $42,000

Welcome to 327 Onyx Avenue, Balboa Island, a great location steps from the—just steps to the North Bayfront. Water views on both levels.

Located on a rare find 40 foot lot. A 40 feet wide lot offers significantly more space, light and private parking (a coveted premium on the Island). Currently offers parking behind the garage and a spot alongside the garage. Easy access to the home with alley access off Marine Dr. just over the Bridge.

This Balboa Island mid-century beach house takes advantage of its position, with views toward the Bay and a constant reminder of how close you are to the water. It’s an easy access to the Shoreline, Marine Avenue shopping, Dining and fun. Balboa is everything that makes Newport Beach what it is—but far enough removed to feel quiet and livable.

First time on the market in over 60 years is now available for a new beginning! A rare find indeed. Properties like this don’t come up often.

Listed by Brian Gibney

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License #01383231

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Coldwell Banker Realty

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949-500-1603

Listed by Bill Lupis

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License #00590337

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Coldwell Banker Realty

Last updated April 29, 2026

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Source: CRMLS #NP26074825

Listing Facts

  • TypeSingle-family
  • NeighborhoodBalboa Island
  • Bedrooms5
  • Bathrooms2
  • Days on Prevu10
  • Size2,128 sqft
  • Price per sqft$1,974

Amenities

  • Private Outdoor Space
  • Parking

Location

Mortgage Calculator

Listing History

04/23/2026
Price Decreased
$4,200,000
04/22/2026
Listed by Coldwell Banker Realty
$4,500,000

Property Details for 327 Onyx

Association

Amenities

  • Community Features: Suburban

Exterior

Construction

  • Number Of Units Total: 1
  • Roof: Flat
  • Stories: 2
  • Stories Total: 2
  • Structure Type: House
  • Year Built: 1938
  • Architectural Style: Mid-Century Modern
  • Common Walls: No Common Walls
  • Entry Level: 1
  • Entry Location: 1

Features

  • Patio And Porch Features: Covered
  • Road Frontage Type: City Street
  • View: Bay

Measurements

  • Lot Features: Level
  • Lot Size Acres: 0.07
  • Lot Size Area: 3,400
  • Lot Size Source: Assessor
  • Lot Size Square Feet: 3,400
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 05014133

Interior

Features

  • Fireplace Features: Living Room
  • Fireplace: Yes
  • Flooring: Carpet, Tile
  • Interior Features: Bedroom On Main Level, Main Level Primary

Measurements

  • Living Area: 2,128
  • Living Area Source: Assessor
  • Living Area Units: Square Feet

Rooms

  • Bathrooms Full: 2
  • Bathrooms Total Integer: 2
  • Bedrooms Total: 5
  • Main Level Bathrooms: 1
  • Main Level Bedrooms: 1

Other

Location

  • Subdivision Name: Balboa Island - Main Island (BALM)
  • Tax Block: 18
  • Tax Lot: 23

Parking

Parking

  • Garage Spaces: 2
  • Garage: Yes
  • Open Parking Spaces: 1
  • Parking Features: Door-Multi, Garage, On Site, One Space
  • Parking Total: 3

Schools

High School

  • High School District: Newport Mesa Unified

Utilities

Equipment

  • Heating: Central
  • Has Heating: Yes
  • Laundry Features: Inside
  • Sewer: Public Sewer
  • Utilities: Electricity Connected, Natural Gas Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 5 bedrooms and 2 bathrooms in this single-family home at 327 Onyx.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 327 Onyx.

How does 327 Onyx compare to other single-family homes in Balboa Island?

This single-family home is listed 0% below the average price for single-family homes in Balboa Island and has been on the market for 106 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 2,128 sqft.

327 Onyx is a 5-bedroom, 2-bath single-family home for sale in Newport Beach CA 92662. On Prevu for 10 days at $4,200,000. This includes a recent price decrease of $300,000. This property features 2,128 square feet of living space, located in Balboa Island. The median listing price for single-family homes in this area is $4,299,500. Additional amenities include private outdoor space and parking. Explore more single-family home listings in Orange County.

Based on information from California Regional Multiple Listing Service, Inc. and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.