306 RUBY Avenue, Newport Beach, CA 92662
- 3 beds
- 3 baths
- 1,100 sq ft
- Built 1936
$3,350,000
Est. $22,147/mo with 20% down, 30-year fixed
$3,045 a sq ft against a $1,662 Balboa Island - Main Island median. Ask how it comparesSubdivision Balboa Island - Main Island
14 duplexes sold in the past 12 months · median $3,764,855
The home
About 306 RUBY Avenue
Discover the charm of Balboa Island living at this adorable and inviting cottage, ideally situated on the iconic Ruby Avenue, just steps from the beautiful North Bayfront! Offering approximately 1,100 square feet, this charming duplex features 3 bedrooms, 3 bathrooms, a 2-car garage and golf cart parking.
Rich in character and coastal appeal, the property showcases beautiful wood paneling throughout and impressive high ceilings that create a warm, open, and welcoming atmosphere. The front cottage offers 2 bedrooms and 2 bathrooms, while the additional living space features 1 bedroom, 1 bathroom, and a generously sized office that could also serve as a spacious walk-in closet, providing flexibility for guests, extended family, or a home office.
Whether you're looking for a special island getaway, an investment opportunity, or a place to enjoy the quintessential Balboa Island lifestyle, this delightful property offers endless possibilities.
Enjoy the best of island living with the bayfront, waterfront strolls, charming shops, and local restaurants just moments away.
Don't miss this wonderful opportunity to own a piece of Balboa Island charm on one of its most iconic streets!
Property details for 306 RUBY Avenue
This 3-bedroom, 3-bath duplex sits in the Balboa Island - Main Island neighborhood of Newport Beach in Orange County. It has 1,100 square feet of living space and is listed at $3,350,000, about $3,045 per square foot. The home was built in 1936. The MLS record lists the assessor parcel number as 050-082-08. Highlights include a fireplace, a two-car garage, and cottage architecture.
Specifications
Home Details
General Features
- Property Type
- Duplex
- MLS Number
- OC26236486
- Year Built
- 1936
- Living Area (sq ft)
- 1,100
- Living Area Source
- Other
- Lot Size (sq ft)
- 3,085
- Lot Size (acres)
- 0.0708
- Levels
- Two
- Bedrooms
- 3
- Full Baths
- 3
- Garage Spaces
- 2
- Parking Spaces
- 4
- View
- None
- Parcel Number
- 05008208
- Listing Terms
- Standard
Interior Features
- Interior Features
- Beamed Ceilings, Breakfast Bar, Built In Features, Brick Walls, Block Walls, Ceiling Fans, Separate Formal Dining Room, Laminate Counters, Open Floorplan, Pantry, Unfurnished, Bedroom On Main Level, Main Level Primary
- Appliances
- Dishwasher, Microwave, Refrigerator
- Flooring
- Brick
- Cooling
- None
- Fireplace
- Living Room
- Laundry
- In Garage
- Main Level Bedrooms
- 2
- Main Level Bathrooms
- 2
- Entry Level
- 1
- Common Walls
- No Common Walls
- Windows
- Shutters
- Accessibility
- None
- Rooms
- Entry Foyer, Bathroom, Kitchen, Dining Room, Office, Primary Bedroom, Great Room, Bedroom, Family Room, Den
Exterior Features
- Architectural Style
- Cottage
- Exterior Features
- Awnings, Rain Gutters
- Roof
- Composition, Shingle
- Construction
- Drywall
- Foundation
- Slab
- Lot Features
- Value In Land
- Patio and Porch
- Brick, Front Porch, Porch
- Parking
- Garage
- Fencing
- Stone, Wood
- Pool Features
- None
- Spa
- None
- Sewer
- Public Sewer
- Water
- Public
- Utilities
- Other
- Condition
- Repairs Cosmetic
- Units
- 2
Community Features
- Subdivision
- Balboa Island - Main Island (BALM)
- Community Features
- Curbs
The record
Property History for 306 RUBY Avenue
| Date | Event | Price | Note |
|---|---|---|---|
| Nov 6, 2026 | Listed for sale | $3,350,000 |
No prior MLS sales on record for this home since 2012.
Added by Realatrends Real Estate
Flood, Fire and Earthquake Zones for 306 RUBY 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 AO, inside 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 30 of 30 residential locations in this census block. Cable: Spectrum, up to 1,000 Mbps, at 30 of 30. Fixed wireless: Verizon, up to 300 Mbps, at 30 of 30.
FCC National Broadband Map, provider-reported data as of December 31, 2025, for census block 060590630061001, not for this address. Not endorsed by the FCC. Checked October 15, 2026.
- EV charging
Nearest public charger 0.7 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
Cost of ownership
Estimated monthly payment
7.18% · 30-yr fixed$
$25,673/mo
10% down · 30-year fixed · $335,000 down
Principal & interest$20,425
Mortgage insurance (est., over 80% LTV)$1,256
Property tax (est. 1.08%)$3,015
Home insurance (rough est., varies widely)$977
HOANot reported, not included
$22,147/mo
20% down · 30-year fixed · $670,000 down
Principal & interest$18,155
Property tax (est. 1.08%)$3,015
Home insurance (rough est., varies widely)$977
HOANot reported, not included
$19,878/mo
30% down · 30-year fixed · $1,005,000 down
Principal & interest$15,886
Property tax (est. 1.08%)$3,015
Home insurance (rough est., varies widely)$977
HOANot reported, not included
Estimated carrying cost
$3,992/mo
All cash · taxes and insurance only
Principal & interestNone (cash purchase)
Property tax (est. 1.08%)$3,015
Home insurance (rough est., varies widely)$977
HOANot reported, not included
Estimate only, not a loan offer or quote. Principal and interest use the Freddie Mac 30-year fixed average of 7.18% (week of Nov 5, 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.
Next steps
Buying 306 RUBY Avenue
Want to see 306 RUBY 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 306 RUBY 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, Oct 30, 2025 to Oct 30, 2026. Days on market run from listing to going under contract.
Price per square foot against recent Balboa Island - Main Island sales
At $3,045 per square foot, this home's asking price is 83% above the Balboa Island - Main Island median of $1,662 for duplexes that closed in the past 12 months.
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 the 17 other homes for sale Newport Beach housing market
Schools
Schools for 306 RUBY Avenue
As listed in the MLS record. Confirm attendance boundaries with the school district.
- High
- Newport Harbor
- District
- Newport Mesa Unified
Living in Newport Beach covers its schools, parks and beaches.
Location
Location
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Listed by Michelle Mayo of Innovate Realty, Inc.
Listing information updated Nov 6, 2026 at 5:06 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.