20 Harbor IS
Newport Beach, CA, 92660
$59,000,000
6 Beds
5 Baths
3,600 SqFt
0.41 Acres
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This landmark Newport Beach Harbor Island home, situated on two of its most extraordinary view lots, is available for sale for the first time in over 70 years. Favored for its timeless classic style, impressive private dockage, magnificent stately grounds, and beautifully manicured specimen trees, this gracious residence, built circa 1937, presides over Newport Harbor’s central turning basin and anchorage, the hub of the harbor’s yachting activity. This offering comprises two independent lots (numbers 20 and 21), each fifty feet wide. Their combined one hundred feet of frontage, found on the most desirable island in Newport Harbor, represents the last opportunity of its kind. Surrounded by Southern California’s most impressive and expensive waterside residences, this property can be restored, expanded, or wholly reimagined to build the waterfront home of your dreams. The existing private dock can accommodate several boats to 78’, and reconfiguration could allow for a yacht to 100’. Lot 21 can be purchased separately for $29,500,000.

Property Details

Price:
$59,000,000
MLS #:
NP25020448
Status:
Active
Beds:
6
Baths:
5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Harbor Island HARI
Neighborhood:
n9lowernewportbaybalboaisland
Listed Date:
Jan 28, 2025
Finished Sq Ft:
3,600
Lot Size:
17,726 sqft / 0.41 acres (approx)
Year Built:
1937
WaterfrontBayfrontN9 – Lower Newport Bay – Balboa IslandN9lowernewportbaybalboaislandHarbor Island HariNewport Mesa UnifiedWater

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Schools

School District:
Newport Mesa Unified

Interior

Bathrooms
4 Full Bathrooms, 1 Half Bathroom
Cooling
NO
Laundry Features
IR

Exterior

Community Features
STM
Parking Spots
2

Financial

HOA Fee
$33,481
HOA Frequency
ANU

Map

Community

Subdivisions in Newport Beach

Market Summary

Current real estate data for Single Family in Newport Beach as of Dec 26, 2025
111
Single Family Listed
50
Avg DOM
1,271
Avg $ / SqFt
$3,848,017
Avg List Price

Property Summary

    Located in the Harbor Island (HARI) subdivision, 20 Harbor IS Newport Beach CA is a Single Family for sale in Newport Beach, CA, 92660. It is listed for $59,000,000 and features 6 beds, 5 baths, and has approximately 3,600 square feet of living space, and was originally constructed in 1937. The current price per square foot is $16,389. The average price per square foot for Single Family listings in Newport Beach is $1,271. The average listing price for Single Family in Newport Beach is $3,848,017.

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