Sold
203 Diamond Avenue sold on May 25, 2018 for $3,695,625, 5.2% below the $3,899,000 asking price after 10 days on the market. The buyer paid cash. The details are below for reference.
203 Diamond Avenue, Newport Beach, CA 92662
- 3 beds
- 4 baths
- 2,345 sq ft
- 2,556 sq ft lot
- Built 2018
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$3,695,625
Subdivision Balboa Island - Main Island
23 single-family homes sold in the past 12 months · median $4,875,000
The home
About 203 Diamond Avenue
Renowned homebuilder Dahn Custom Homes presents their third showcase property on Balboa Island. Effortlessly chic, this new construction home is a highly detailed and sophisticated living space with an iconic American aesthetic. The design is clean, serene, modern and comfortable.
Strikingly stylish, the sun-filled living room is fitted with custom millwork, marble fireplace, Visual Comfort light fixtures, Schumacher wallpaper and metal doors leading out to the patio. Boasting floor to ceiling paneled walls, the kitchen has been designed with the chef in mind. Featuring a 42” Sub-Zero refrigerator, 48” Wolf gas range, walk-in pantry and a large kitchen island.
Quietly splendid, the grand Master Retreat occupies the entire front half of the second story. This space embodies elegant simplicity with a 13’ foot tall master bathroom, oversized walk-in closet, gas fireplace and disappearing La Cantina pocket doors leading to your private balcony.
The true surprise to this beautiful home is the additional 1,000 SF third floor roof deck which occupies the entire length of the house. Featuring views of Newport Harbor, Fashion Island and Newport Coast, the roof deck is an entertainer's dream. Broken into three separate areas, including a covered outdoor dining/kitchen area, a front sitting area with a large custom fireplace and rear deck ready for a jacuzzi.
Located with close proximity to S. Bay Front and the Ferry, your dream of life by the sea can come true.
Property details for 203 Diamond Avenue
This 3-bedroom, 4-bath single-family home sits in the Balboa Island - Main Island neighborhood of Newport Beach in Orange County. It has 2,345 square feet of living space. The home was built in 2018. The MLS record lists the assessor parcel number as 050-092-16. Highlights include peek-a-boo coastline and harbor views, a fireplace, an attached two-car garage, air conditioning, new construction, and Cape Cod architecture.
Specifications
Home Details
General Features
- Property Type
- Single Family Residence
- MLS Number
- OC18098560
- Year Built
- 2018
- Living Area (sq ft)
- 2,345
- Living Area Source
- Builder
- Lot Size (sq ft)
- 2,556
- Levels
- Three Or More
- Bedrooms
- 3
- Full Baths
- 2
- Half Baths
- 1
- Garage Spaces
- 2
- Parking Spaces
- 2
- View
- Bay, City Lights, Coastline, Harbor, Peek A Boo
- Parcel Number
- 05009216
- On Market Date
- 2018-04-28
- Listing Terms
- Standard
Interior Features
- Interior Features
- Elevator, High Ceilings, Open Floorplan, Stone Counters, All Bedrooms Up
- Appliances
- Six Burner Stove, Convection Oven, Double Oven, Dishwasher, Gas Oven, Microwave, Refrigerator, Tankless Water Heater
- Flooring
- Wood
- Heating
- Zoned
- Cooling
- Zoned
- Fireplace
- Living Room, Primary Bedroom, Outside
- Laundry
- Common Area, Upper Level
- Main Level Bathrooms
- 1
- Common Walls
- No Common Walls
Exterior Features
- Architectural Style
- Cape Cod
- Roof
- Composition, Metal
- Lot Features
- Zero To One Unit Acre
- Patio and Porch
- Rooftop
- Parking
- Garage
- Fencing
- Vinyl
- Pool Features
- None
- Sewer
- Public Sewer
- Water
- Public
- Units
- 1
Community Features
- Subdivision
- Balboa Island - Main Island (BALM)
- Community Features
- Suburban
The record
Property History for 203 Diamond Avenue
| Date | Event | Price | Note |
|---|---|---|---|
| May 25, 2018 | Sold | $3,695,625 | |
| Apr 28, 2018 | Listed for sale | $3,899,000 | |
| Dec 31, 2015 | Sold | $1,725,000 | HOM Sotheby's International |
Added by Realatrends Real Estate
Flood, Fire and Earthquake Zones for 203 Diamond Avenue
We looked up this home's map point in public government maps. These facts are not part of the MLS listing.
Hazard zones
- Flood zone
Zone X, 0.2 percent annual chance flood hazard. Outside 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.
Internet and charging
- Fixed internet
Fiber: AT&T, up to 1,000 Mbps, at 28 of 28 residential locations in this census block. Cable: Spectrum, up to 1,000 Mbps, at 28 of 28. Fixed wireless: Verizon, up to 300 Mbps, at 28 of 28.
FCC National Broadband Map, provider-reported data as of December 31, 2025, for census block 060590630061014, not for this address. Not endorsed by the FCC. Checked October 15, 2026.
- EV charging
Nearest public charger 0.8 miles away (Tesla Destination, 2 Level 2 ports). 158 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
Next steps
Looking for something similar
203 Diamond Avenue is no longer on the market, but comparable homes come up in Newport Beach regularly. We can tell you what this one actually closed at and set up alerts for listings that match it.
Selling near 203 Diamond Avenue
Thinking of selling nearby? We bring current Balboa Island - Main Island 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.
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
- 23
- Median price
- $4,875,000
- Median days on market
- 16
- Median per sq ft
- $2,590
Recorded MLS closings of single-family homes, Nov 4, 2025 to Nov 4, 2026. Days on market run from listing to going under contract.
Recent Balboa Island - Main Island sales
| Address | Closed | Price | Sq ft | Per sq ft | Days on market |
|---|---|---|---|---|---|
| 306 Alvarado Place | Nov 4, 2026 | $2,699,000 | 1,033 | $2,613 | 207 |
| 118 Sapphire | Oct 30, 2026 | $6,275,000 | 2,321 | $2,704 | 31 |
| 1207 N Bay Front | Oct 14, 2026 | $7,250,000 | 992 | $7,308 | 128 |
| 226 Opal | Oct 9, 2026 | $2,980,000 | 936 | $3,184 | 10 |
| 225 Diamond | Sep 29, 2026 | $7,585,000 | 2,312 | $3,281 | 43 |
See 18 homes for sale in Balboa Island - Main Island Newport Beach housing market
Schools
School District for 203 Diamond 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 David Dahn of David Dahn. Broker
Listing information updated Jun 27, 2026 at 6:57 AM 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.