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Estimated combined costs for tension-leg anchoring a family seastead (~44 ft trimaran) with 2 residents
Permits for installing helical-screw anchors and tension-leg mooring lines; annual mooring-licence fees where applicable.
Vessel or floating-structure entry/departure clearance, cruising permits, and any required registration.
Entry permits, visa extensions, digital-nomad visas, or long-stay permits for two adults.
Environmental impact screening, marine-park access fees, and structural-safety inspections where required.
| Location | 1 Week | 1 Month | 3 Months | 6 Months | Key Notes |
|---|---|---|---|---|---|
| Bahamas | $350 | $800 | $1,800 | $3,200 | Easy 8-mo tourist stay · no income tax · English |
| Belize | $250 | $500 | $1,100 | $2,000 | Affordable · English · Barrier reef |
| Panama (Caribbean) | $200 | $450 | $950 | $1,700 | 6-mo visa-free · USD · no foreign-income tax |
| Grenada | $300 | $650 | $1,400 | $2,500 | Yacht-friendly · CBI programme · English |
| Turks & Caicos | $400 | $900 | $2,000 | $3,500 | British territory · no income tax · higher costs |
| Antigua & Barbuda | $280 | $600 | $1,300 | $2,400 | Major yachting hub · CBI programme · English |
| Anguilla | $350 | $750 | $1,600 | $2,900 | British territory · no income tax · exclusive |
| British Virgin Islands | $350 | $750 | $1,600 | $2,900 | Premier sailing · British territory · no income tax |
| French Polynesia | $400 | $950 | $2,100 | $3,700 | French territory · remote · EU citizens visa-free |
| Thailand | $300 | $600 | $1,300 | $2,300 | DTV visa ~$270/5 yr · affordable · good infrastructure |
| Cayman Islands | $550 | $1,300 | $3,000 | $5,200 | Very expensive · Global Citizen programme · no income tax |
| Malaysia (Langkawi) | $180 | $400 | $850 | $1,500 | Most affordable · duty-free · excellent marine facilities |
🟢 Green = best value (<$2,000/6 mo) | 🟡 Yellow = moderate ($2,000–$3,500) | 🔴 Red = premium (>$3,500). Highlighted rows are the most cost-effective options.
These estimates are speculative. No country on this list has a published fee schedule for seasteads. The figures above are best-guess composites based on existing yacht-cruising permits, private-mooring fees, port-clearance charges, environmental permits, and immigration costs for two adults — adjusted upward where a semi-permanent tension-leg installation would likely trigger additional regulatory requirements.
Actual costs will depend on the specific anchorage, the discretion of local authorities, whether the seastead is classified as a vessel or a structure, environmental sensitivity of the chosen site, and negotiations with government agencies.
Strongly recommended: Engage a local maritime attorney and a customs/port agent in your chosen jurisdiction before shipping your container and installing helical anchors. The regulatory landscape for seasteads is evolving rapidly, and early engagement with authorities is likely to yield the best outcomes.
Estimates prepared as best-guess projections for planning purposes. Last updated: 2025.