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For Sale|DuplexActive

4204 River Avenue, Newport Beach, CA 92663

  • 6 beds
  • 4 baths
  • 3,202 sq ft
  • Built 1955

MLS# OC26229647 · Listed Oct 23, 2026 · New Today

Subdivision West Newport Beach

7 duplexes sold in the past 12 months · median $4,100,000

See the 19 other homes for sale

The home

About 4204 River Avenue

RARE NEWPORT BEACH WATERFRONT OPPORTUNITY WITH DUAL WATER FRONTAGE AND PRIVATE BOAT DOCK! Acquire a distinctive waterfront property combining boating access, income potential, and redevelopment possibilities in desirable Newport Beach. Situated on an approximately 4,500-square-foot lot along the Newport Canal, 4204 River Avenue is a compelling opportunity for investors, builders, boating enthusiasts, and buyers looking to create their dream waterfront residence.

The property is legally a duplex and configured as three living areas, with approximately 3,202 square feet of existing improvements, six bedrooms, and four bathrooms. While the property requires renovation, its versatile configuration creates several potential investment strategies. Renovate and explore its rental income potential, enjoy waterfront living while generating supplemental income, or pursue plans for a custom luxury waterfront residence. For developers, the existing set up may offer the advantage of generating rental income to help offset carrying costs while architectural plans, permits, and redevelopment approvals are pursued.

What truly sets this property apart is its waterfront setting. Dual water frontage, a private dock, and beautiful canal surroundings create a unique opportunity to embrace the Newport Beach boating lifestyle. Imagine stepping outside to enjoy your boat, kayak, or paddleboard, spending afternoons exploring the harbor, and returning home to the tranquility of life along the water. Just a short distance from the sandy beaches of the Balboa Peninsula, neighborhood parks, coastal restaurants, and shopping, the location offers an exceptional combination of recreation, convenience, and coastal charm.

For those with vision, the possibilities extend well beyond the existing structure. Whether your goal is to establish a waterfront income property, secure a personal coastal retreat with supplemental rental income, or design and build an extraordinary custom residence, here is a chance to invest in the location today and unlock its potential for tomorrow.

Opportunities combining waterfront land, a private boat dock, income potential, and redevelopment possibilities are increasingly difficult to find in Newport Beach. The true value is in the land, the waterfront setting, and the opportunity to create something exceptional. All uses, rental configurations, dock rights, and redevelopment possibilities are subject to independent verification and applicable approvals.

Property details for 4204 River Avenue

This 6-bedroom, 4-bath duplex sits in the West Newport Beach neighborhood of Newport Beach in Orange County. It offers 3,202 square feet of living space and is listed at $5,500,000, about $1,718 per square foot. The home was built in 1955. The MLS record lists the assessor parcel number as 423-293-04. Highlights include ocean and marina views, bay frontage, single-story living, an attached three-car garage, and bungalow architecture. The detail sections on this page cover interior and exterior features, estimated taxes, HOA dues where they apply, and the map location.

Specifications

Home Details

At a glance

Price
$5,500,000
Days On Site
New Today
Bedrooms
6
Inside Area (SqFt)
3,202 sqft
Total Baths
4
Full Baths
4
Partial Baths
N/A
Lot Size
N/A
Year Built
1955
MLS® Number
OC26229647
Status
Active
Property Tax
N/A
HOA/Condo/Coop Fees
N/A
Sq Ft Source
Assessor

General Features

Property Type
Duplex
MLS Number
OC26229647
Year Built
1955
Living Area (sq ft)
3,202
Living Area Source
Assessor
Lot Size (sq ft)
4,443
Lot Size (acres)
0.102
Levels
One, Two
Bedrooms
6
Full Baths
4
Garage Spaces
3
Parking Spaces
3
View
Canal, City Lights, Marina, Ocean, Water
Parcel Number
42329304
On Market Date
2026-10-23
Listing Terms
Trust

Interior Features

Interior Features
In Law Floorplan, Unfurnished, All Bedrooms Up, All Bedrooms Down, Multiple Primary Suites
Appliances
Gas Oven
Flooring
Carpet
Cooling
None
Fireplace
None
Laundry
Inside
Main Level Bedrooms
3
Main Level Bathrooms
2
Entry Level
1
Common Walls
No Common Walls
Accessibility
Adaptable For Elevator, Other
Rooms
Bedroom, Kitchen, Primary Bedroom

Exterior Features

Architectural Style
Bungalow
Exterior Features
Boat Slip, Dock
Lot Features
Level, Street Level
Patio and Porch
Deck, Open, Patio
Parking
Direct Access, Door Single, Garage, Off Street, Workshop In Garage
Pool Features
None
Spa
None
Sewer
Public Sewer
Water
Public
Utilities
Electricity Available, Natural Gas Connected, Sewer Connected, Water Connected
Condition
Fixer
Units
2

Community Features

Subdivision
West Newport Beach (WSNB)
Community Features
Biking, Dog Park, Park, Water Sports

The record

Property History for 4204 River Avenue

DateEventPriceNote
Oct 23, 2026 Price increased $5,500,000 From $5,200,000
Oct 23, 2026 Listed for sale $5,200,000
Aug 3, 2016 Sold $2,100,000 Broadmoor Realty

Cost of ownership

Estimated monthly payment

7.32% · 30-yr fixed
$
$42,620/mo
10% down · 30-year fixed · $550,000 down
Principal & interest$34,003
Mortgage insurance (est., over 80% LTV)$2,063
Property tax (est. 1.08%)$4,950
Home insurance (rough est., varies widely)$1,604
HOANot reported, not included
$36,779/mo
20% down · 30-year fixed · $1,100,000 down
Principal & interest$30,225
Property tax (est. 1.08%)$4,950
Home insurance (rough est., varies widely)$1,604
HOANot reported, not included
$33,001/mo
30% down · 30-year fixed · $1,650,000 down
Principal & interest$26,447
Property tax (est. 1.08%)$4,950
Home insurance (rough est., varies widely)$1,604
HOANot reported, not included
Estimated carrying cost
$6,554/mo
All cash · taxes and insurance only
Principal & interestNone (cash purchase)
Property tax (est. 1.08%)$4,950
Home insurance (rough est., varies widely)$1,604
HOANot reported, not included

Estimate only, not a loan offer or quote. Principal and interest use the Freddie Mac 30-year fixed average of 7.32% (week of Oct 22, 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 4204 River Avenue

Want to see 4204 River Avenue in person? We have guided buyers through West Newport Beach and the wider Newport Beach market since 1983. Call to arrange a private tour, or send a note and we'll follow up.

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Selling near 4204 River Avenue

Thinking of selling nearby? We bring current West Newport Beach sales data and a clear pricing strategy to every listing, backed by more than 700 closed sales and over $1B in Orange County volume. Start with a free home valuation, or reach out to talk through your options.

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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.

West Newport Beach home sales, past 12 months

Homes sold
7
Median price
$4,100,000
Median days on market
67
Median per sq ft
$1,973

Recorded MLS closings of duplexes, Oct 16, 2025 to Oct 16, 2026. Days on market run from listing to going under contract.

Price per square foot against recent West Newport Beach sales

This home, asking 12-month median Recent sales, listed below

At $1,718 per square foot, this home's asking price is 13% below the West Newport Beach median of $1,973 for duplexes that closed in the past 12 months.

Recent West Newport Beach sales

AddressClosedPriceSq ftPer sq ftDays on market
106 31st Street Jul 10, 2026 $4,175,000 1,534 $2,722 95
203 Cedar Street A & B Jun 18, 2026 $2,650,000 1,804 $1,469 67
304 33rd Street Apr 23, 2026 $2,170,000 1,100 $1,973 128
3917 Seashore Apr 23, 2026 $5,500,000 2,433 $2,261 0
213 41st Apr 14, 2026 $2,875,000 2,589 $1,110 153

Schools

School District for 4204 River Avenue

As listed in the MLS record. Confirm attendance boundaries with the school district.

The MLS record lists the school district as Newport Mesa Unified.

Living in Newport Beach covers its schools, parks and beaches.

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Listed by Paula Aragone of First Team Real Estate

Listing information updated Oct 23, 2026 at 10:53 AM PT. Source: CRMLS.

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