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:
6
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Bay Island BISL
Neighborhood:
npbalboapeninsula
Listed Date:
Aug 22, 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
DW, MW, RF, GO, GR, BIR, EO, WHU
Bathrooms
3 Full Bathrooms, 2 Three Quarter Bathrooms, 1 Half Bathroom
Cooling
CA
Heating
CF, FIR
Interior Features
COFF, WAIN, SUND, STNC, LRDA, BL, EV
Laundry Features
IR, UL
Levels
C
Main Level Bathrooms
2
Exterior
Accessibility Features
NO
Architectural Style
CPC, CB
Common Walls
NCW
Community Features
WATE
Construction Materials
BRK, WOD
Exterior Features
BS, DO, RG
Fencing
GL
Garage Spaces
2
Other Structures
TC
Parking Spots
2
Parking Total
2
Patio And Porch Features
CON, PTO
Roof
SLT
Security Features
CRD, GC
Spa Features
PVT
View
BA, CI, HA, SEE, WA
Waterfront Features
NGW, ID, BAY, BCH
Financial
HOA Fee
$7,594
HOA Fee 2
$1,250
HOA Fee 2 Frequency
QTR
HOA Fee Frequency
QTR
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 Aug 24, 2026
468
Single Family Listed
120
Avg DOM
1,167
Avg $ / SqFt
$4,045,906
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, 6 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 $1,167. The average listing price for Single Family in Newport Beach is $4,045,906.
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