Set within Newport Beach’s most exclusive waterfront enclave, 21 Bay Island offers a rare combination of architectural distinction, direct harbor and yachting access, privacy, and effortless coastal living. Bay Island is a gated, pedestrian-only sanctuary of just 23 waterfront homes, reached by foot or golfcart over a charming private bridge, where lush picking gardens, mature trees, a private sandy beach, and sweeping harbor views create an atmosphere unlike anywhere else in Newport Beach – moments from the Balboa Peninsula and steps from the Pacific Ocean.
Held in Bay Island’s distinctive stock-cooperative, 21 Bay Island is a detached single-family home designed by acclaimed architect Kurt Donat and built by Neil Longman Construction. This Hamptons-inspired residence blends timeless nautical character with the scale and comfort expected of an ultra-luxury waterfront home. Polished hardwood floors, crisp white millwork, refined coastal finishes, expansive entertaining spaces, and walls of windows evoke the elegance of a classic yacht while framing captivating views of Newport Harbor. Generous living areas open naturally to terraces, gardens, and the water, creating a seamless setting for intimate gatherings, grand entertaining, or quiet evenings watching sunsets and boats cross the harbor. Serviced by a private elevator, this home features multiple fireplaces, a waterfront spa terrace, a dedicated office providing a quiet setting for work or study, and a light-filled upper-level loft with four built-in beds that make for a charming and flexible additional sleeping space, ideal as a bunk room, guest retreat, or additional bedroom.
For the boating enthusiast, the property delivers the ultimate Newport Beach lifestyle with a private dock, and immediate access to the harbor’s main channels. Begin the day on the water, cruise the coast, and return home for a sunset overlooking the bay. Bay Island’s private beach, beautifully maintained gardens, waterfront pathways, and intimate residential character make it more than a neighborhood—it is a world apart.
Few properties offer this combination of prestige, tranquility, walkability, boating access, ocean proximity, and architectural pedigree. Bay Island represents the pinnacle of Newport Beach living: private yet connected, refined yet relaxed, and surrounded by the beauty of the water.
Held in Bay Island’s distinctive stock-cooperative, 21 Bay Island is a detached single-family home designed by acclaimed architect Kurt Donat and built by Neil Longman Construction. This Hamptons-inspired residence blends timeless nautical character with the scale and comfort expected of an ultra-luxury waterfront home. Polished hardwood floors, crisp white millwork, refined coastal finishes, expansive entertaining spaces, and walls of windows evoke the elegance of a classic yacht while framing captivating views of Newport Harbor. Generous living areas open naturally to terraces, gardens, and the water, creating a seamless setting for intimate gatherings, grand entertaining, or quiet evenings watching sunsets and boats cross the harbor. Serviced by a private elevator, this home features multiple fireplaces, a waterfront spa terrace, a dedicated office providing a quiet setting for work or study, and a light-filled upper-level loft with four built-in beds that make for a charming and flexible additional sleeping space, ideal as a bunk room, guest retreat, or additional bedroom.
For the boating enthusiast, the property delivers the ultimate Newport Beach lifestyle with a private dock, and immediate access to the harbor’s main channels. Begin the day on the water, cruise the coast, and return home for a sunset overlooking the bay. Bay Island’s private beach, beautifully maintained gardens, waterfront pathways, and intimate residential character make it more than a neighborhood—it is a world apart.
Few properties offer this combination of prestige, tranquility, walkability, boating access, ocean proximity, and architectural pedigree. Bay Island represents the pinnacle of Newport Beach living: private yet connected, refined yet relaxed, and surrounded by the beauty of the water.
Property Details
Price:
$16,750,000
MLS #:
OC26169145
Status:
Active
Beds:
4
Baths:
5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Bay Island BISL
Neighborhood:
npbalboapeninsula
Listed Date:
Aug 21, 2026
Finished Sq Ft:
4,395
Lot Size:
4,395 sqft / 0.10 acres (approx)
Year Built:
2000
See this Listing
Schools
School District:
Newport Mesa Unified
Interior
Appliances
Water Heater, Microwave, Built-In Range, Refrigerator, Gas Range, Electric Oven, Gas Oven, Dishwasher
Bathrooms
3 Full Bathrooms, 2 Three Quarter Bathrooms, 1 Half Bathroom
Cooling
Central Air
Heating
Fireplace(s), Central
Interior Features
Balcony, Elevator, Wainscoting, Living Room Deck Attached, Coffered Ceiling(s), Stone Counters, Wired for Sound
Laundry Features
Laundry Room, Upper Level
Levels
Three Or More
Main Level Bathrooms
2
Exterior
Accessibility Features
None
Architectural Style
Cape Cod, Custom Built
Association Amenities
Playground, Tennis Court(s), Other, Controlled Access, Security
Common Walls
No Common Walls
Community Features
Watersports
Construction Materials
Wood Siding, Brick
Covered Spaces
2
Exterior Features
Boat Slip, Rain Gutters, Dock Private
Fencing
Glass
Garage Spaces
2
Lot Features
Garden
Other Structures
Tennis Court Private
Parking Features
Garage, Community Structure, Private, Off Site
Parking Spots
2
Parking Total
2
Patio And Porch Features
Concrete, Patio
Roof
Slate
Security Features
Card/Code Access, Gated Community
Spa Features
Private
Stories
3
View
Bay, City Lights, Harbor, See Remarks, Water
Waterfront Features
Navigable Water, Includes Dock, Bay Front, Beach Access
Financial
HOA Fee
$7,594
HOA Fee 2
$1,250
HOA Fee 2 Frequency
Quarterly
HOA Fee Frequency
Quarterly
HOA Name
Bay Island Club
HOA Phone
800-400-2284
Map
Community
- Address21 Bay Island Newport Beach CA
- SubdivisionBay Island (BISL)
- CityNewport Beach
- CountyOrange
- Zip Code92661
Subdivisions in Newport Beach
- Back Bay Custom Homes BBCS
- Balboa Coves BLCV
- Balboa Island – Collins Island BALC
- Balboa Island – Little Island BALL
- Balboa Island – Main Island BALM
- Balboa Peninsula Point BLPP
- Balboa Peninsula Residential BALP
- Baycrest North BCNO
- Baycrest South BCSO
- Bayridge BRID
- Bayshores BSHR
- Bayside Village BAYV
- Bayview Terrace BVTR
- Beacon Bay BEAC
- Belcourt Hill BLHL
- Belcourt Terrace BLTR
- Big Canyon Broadmoor BCBM
- Big Canyon Custom BCCS
- Big Canyon Deane BCDN
- Big Canyon McLain BCMC
- Bluffs Original BORI
- Bluffs Plaza Area BOPL
- Bluffs Tennis Villas BNTV
- Bonnie Bay Highland Homes UBHH
- Cannery Village Mobile Park CVMP
- Castaways CAST
- Central Newport CNEW
- Cherry Lake Estates UBLE
- Cliffhaven CLIF
- Dover Shores “”100″” Series DSA1
- Dover Shores DSAM
- Eastbluff – Lusk EBLK
- Eastbluff – Macco EBMO
- Granville GRNV
- Harbor Cove Promenade HCPM
- Harbor Hill HARH
- Harbor Island “”Drive”” HIDC
- Harbor Island HARI
- Harbor Ridge Crest HRCR
- Harbor Ridge Custom HRCS
- Harbor Ridge Estates HRES
- Harbor View Homes HVHM
- Kings Road KGRD
- Lido Building #601 L601
- Lido Building #621 L621
- Lido Island LIDO
- Lido Peninsula LIPN
- Linda Isle LIND
- Madison BCYM
- Newport Crest NEWC
- Newport Heights NEWH
- Newport Island NEWI
- Newport North Townhomes NNTH
- Newport Shores NEWS
- Promontory Bay Custom PBCS
- Providence OFPV
- Santa Ana Heights Residential SAHR
- Sea Island – Lusk SILK
- Seaview SEAV
- Summer House OFSH
- Versailles VERS
- Villa Balboa VBAL
- Villa Point VILP
- Villa Siena VSEN
- West Newport Beach WSNB
- Westcliff East WCDE
- Westcliff West WCDW
Market Summary
Current real estate data for Single Family in Newport Beach as of Oct 26, 2026
220
Single Family Listed
101
Avg DOM
2,303
Avg $ / SqFt
$7,929,134
Avg List Price
Property Summary
- Located in the Bay Island (BISL) subdivision, 21 Bay Island Newport Beach CA is a Single Family for sale in Newport Beach, CA, 92661. It is listed for $16,750,000 and features 4 beds, 5 baths, and has approximately 4,395 square feet of living space, and was originally constructed in 2000. The current price per square foot is $3,811. The average price per square foot for Single Family listings in Newport Beach is $2,303. The average listing price for Single Family in Newport Beach is $7,929,134.
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