The rarest islands are the ones where someone has already built. These carry standing hospitality or estate infrastructure — ready to operate, adapt or simply enjoy.
Editorial profile
Inner Islands, Praslin, Seychelles
Round Island, Praslin
€18,000,000 (guide)
37 acres
Sanction to Purchase requiredMarketed since 2024
anchoragebeachblank-canvas
Editorial profile
Inner Islands, Mahé, Seychelles
Anonyme Island
Available discreetly · on application
25 acres
Sanction to Purchase required
beachboutiqueconservation
Editorial profile
Southern Coral Group, Outer Islands, Seychelles
Platte Island
Operating · government lease · on application
143 acresGovernment lease
Government leaseForeign ownership restricted
beachconservationdiving
Editorial profile
Andaman Sea, off Phuket, Thailand
Rangyai Island
Price on application
110 acres
Foreign ownership restrictedMarketed since 2014
beachdivingfamily
Editorial profile
Lau Group, Eastern Fiji, Fiji
Katafanga Island
Under offer
225 acresFreehold
FreeholdMarketed since 2006
anchorageturnkeydiving
Editorial profile
Exuma Cays, Bahamas
Cave Cay
Sold · now committed to a Bvlgari-branded resort development, completion targeted 2029
220 acresFreehold
Freehold
anchorageaviationbeach
Editorial profile
Mafia Archipelago, Tanzania, Tanzania
Thanda Island
US$285,250per week · whole island · sleeps 18
12 acressleeps 18
Marketed since 2016
beachconservationdiving
Editorial profile
Tuamotu Archipelago, French Polynesia, French Polynesia
Nukutepipi
€900,000per week · whole island · sleeps 52
1000 acressleeps 52
Marketed since 2019
conservationdivinglagoon
Editorial profile
Windward Islands, Grenada, Grenada
Calivigny Island
US$924,000per week · whole island · sleeps 40
80 acressleeps 40
beachdivingevents
Editorial profile
Exuma Cays, Bahamas
Musha Cay
US$399,000per week · whole island · sleeps 24
700 acressleeps 24
Marketed since 2006
beachdivingprivacy
Editorial profile
Bahamas, Bahamas
Bird Cay
US$38,000,000
250 acresFreehold
FreeholdMarketed since 2013
beachfishingdiving
Editorial profile
Belize, Belize
Cayo Espanto
US$133,000per week · whole island · sleeps 18
4 acressleeps 18
Marketed since 2008
beachoverwaterplunge-pools
Editorial profile
Exuma Cays, Bahamas
Little Pipe Cay
US$100,000,000
38 acresFreehold
FreeholdMarketed since 2018
beachanchoragediving
Editorial profile
British Virgin Islands, British Virgin Islands
Necker Island
US$140,000per night · sleeps 48
74 acressleeps 48
Marketed since 2010
beachwatersportskite-surfing
Editorial profile
Bahamas, Bahamas
Over Yonder Cay
US$308,000per week · whole island · sleeps 30
72 acressleeps 30
beachgolftennis
Editorial profile
Grenadines, Saint Vincent and the Grenadines
Petit St Vincent
Closed since Hurricane Beryl (2024) · reopening not announced
113 acressleeps 44
beachdivingsailing
Editorial profile
Eleuthera, Bahamas
Royal Island
US$45,000,000 (guide)
403 acresFreehold
FreeholdMarketed since 2024
anchoragebeachsailing
Editorial profile
Outer Islands, Seychelles
Alphonse Island
Operating · government lease · on application
430 acresGovernment lease
Government leaseSanction to Purchase required
divingconservationturnkey
Editorial profile
Inner Islands, Seychelles
Bird Island
Available discreetly · on application
232 acresFreeholdsleeps 30
FreeholdSanction to Purchase required
conservationbeachdiving
Editorial profile
Inner Islands, Seychelles
Cerf Island Estate
€3,800,000
3.2 acresFreehold
FreeholdSanction to Purchase required
beachturnkeydiving
Editorial profile
Inner Islands, Seychelles
Denis Island
Available discreetly · on application
346 acresLeasehold
LeaseholdSanction to Purchase required
beachdivingconservation
Editorial profile
Amirantes, Seychelles
Desroches Island
Price on application
995 acresGovernment lease
Government leaseSanction to Purchase required
beachdivingturnkey
Editorial profile
Inner Islands, Seychelles
Frégate Island
Available discreetly · on application
544 acresLeaseholdsleeps 44
LeaseholdSanction to Purchase required
beachdivingconservation
Editorial profile
Inner Islands, Seychelles
Félicité Island
Operating · government lease · on application
662 acresGovernment lease
Government leaseSanction to Purchase required
beachdivingturnkey
Editorial profile
Inner Islands, Seychelles
North Island
€840,000per week · whole island · sleeps 44
496 acresLeaseholdsleeps 44
LeaseholdSanction to Purchase required
beachdivingconservation
Editorial profile
Inner Islands, Seychelles
Sainte Anne Island
Operating · government lease · on application
561 acresLeasehold
LeaseholdSanction to Purchase required
beachdivingturnkey
Editorial profile
Inner Islands, Seychelles
Silhouette Island
Available discreetly · on application
4965 acresGovernment lease
Government leaseForeign ownership restricted
conservationdivingbeach
Editorial profile
Ibiza, Balearic Islands, Spain
Isla Sa Ferradura
€250,000per week · whole island · sleeps 12
8.6 acressleeps 12
Marketed since 1994
beachspapool
Editorial profile
Venetian Lagoon, Italy
Isola Santa Cristina
€24,000,000
72 acresFreehold
Freehold
heritagevineyardseclusion
Editorial profile
Balearic Islands, Spain
Tagomago
€150,000,000
148 acresFreehold
FreeholdMarketed since 2020
turnkeyhelipadnature-reserve
Editorial profile
Adriatic (Zadar archipelago), Croatia
Žižanj Island Villa Estate
€7,500,000
11.7 acresFreehold
Freehold
turnkeyolive-grovediving
Editorial profile
British Columbia, Canada, Canada
Breakwater Island
C$14,950,000
65 acresFreehold
FreeholdMarketed since 2024
oceananchorageforest
Editorial profile
Muskoka, Ontario, Canada, Canada
Grey Owl Island
C$995,000
4 acresFreehold
Freehold
forestswimmingfishing
Editorial profile
Stockholm Archipelago, Sweden
Tallskär Island
€1,900,000
1.3 acresFreehold
Freehold
turnkeyheritageswimming
Editorial profile
Efate, Vanuatu, Vanuatu
Hideaway Island Resort & Marine Sanctuary
Price on application
4.5 acresGovernment lease
Government lease
divingreefbeach
Editorial profile
Fiji, Fiji
Laucala Island
Closed for renovation · reopening February 2027 as an independent resort
Ownership, cost, tenure and the few islands that come to market each season. Reported plainly. No. 1 — The Quiet Market is out now; No. 2 follows next quarter.