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21 Bay IslandNewport Beach, CA 92661




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.
| 4 weeks ago | Status changed to Active | |
| 4 weeks ago | Listing updated with changes from the MLS® | |
| a month ago | Listing first seen on site |
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Property Details for 21 Bay Island
This 4-bedroom, 6-bath single-family home sits in the Bay Island neighborhood of Newport Beach in Orange County. It offers 4,395 square feet of living space and is listed at $16,750,000, about $3,811 per square foot. The home was built in 2000. The MLS record lists the assessor parcel number as 048-040-02. Highlights include harbor and bay views, a private spa, a fireplace, a gated community, a two-car garage, and a 4,395-square-foot lot. The detail sections on this page cover interior and exterior features, estimated taxes, HOA dues where they apply, and the map location.
Property History
21 Bay Island was listed for sale on August 21, 2026 (28 days ago) at $16,750,000.
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.
In Newport Beach, 131 single-family homes have closed in the last 90 days at a median of $4,200,000, based on recorded MLS closings. The median was 32 days on market before going under contract.
Estimated monthly payment
6.76% · 30-yr fixedEstimate only, not a loan offer or quote. Principal and interest use the Freddie Mac 30-year fixed average of 6.76% (week of Sep 10, 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.
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Also for sale in Newport Beach: 211 E Bay, 203 6th Street, 315 E Bay Avenue, 409 E Edgewater.
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