Moving to St. Lucia from the UK
UK passport holders can visit St. Lucia visa-free for up to 42 days, but living there takes a residence permit. The self-funded residency routes we track start at an investment of about $240k, and our residency index rates St. Lucia 80/100 for UK citizens (comparatively open). We estimate €2,742 a month for a couple living centrally in Castries. St. Lucia is in our low to medium tax tier. Check the official requirements before you apply.
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- Short stays
- Visa-free 42 days
- UK passport
- Residency
- 80/100
- Comparatively open, our index
- Tax tier
- Low to medium
- Moderate personal income tax
- Est. cost for two
- €2,742/mo
- Castries, our estimate
Living there long term
Our residency index: 80/100, comparatively open. It is our own rating of how realistic long-term residency in St. Lucia is for UK citizens, based on the routes St. Lucia publishes. St. Lucia's realistic long-term path is its Citizenship by Investment programme (NEF donation, approved real estate, government bonds, or enterprise project) which carries no residence requirement, alongside an ordinary residence permit that can lead to permanent residence after roughly five years.
The cheapest self-funded routes we track:
- Investment: about $240k (St. Lucia Citizenship by Investment, National Economic Fund donation, USD 240,000 for a single applicant (already in USD); as of June 2026)
Check the official requirements before you apply: amounts, conditions and exchange rates change, and what a couple needs can differ from a single applicant's threshold.
For short visits, UK passport holders can visit visa-free for up to 42 days, according to the passport-index dataset. Short-stay entry covers visits; living there takes a residence permit.
Source: OurNextCity residency dataset, hand-reviewed approximations researched against published immigration rules, figures as of June 2026. Not legal advice: check the official source before you apply. Short-stay entry from the passport-index dataset (ilyankou, MIT).
Where in St. Lucia to start
Ranked by our match model for a typical couple who both hold UK passports, using the preset answers of our best places to live list. Your own answers would change the order. We pick the cities, up to five, by how often English Wikipedia readers looked them up over the past year.
1. Castries
68% match- Est. cost
- €2,742/mo
- Avg temp
- 26°C
- Safety index
- 62/100
Cost of living for two
Our estimate for a couple living centrally in Castries is €2,742 a month. For comparison, we estimate €4,315 a month in London. Use these figures to compare places rather than to set a budget.
Source: our cost model: a country-level cost-of-living index scaled for city size, from our city dataset (last rebuilt June 2026). An estimate, not a survey of current prices.
Taxes
St. Lucia is in our low to medium tax tier (moderate personal income tax); the UK is in our high tax tier (high personal income tax). Tiers describe each country's own income tax. They do not cover tax you may still owe in the UK after you leave, or the treaty between the two countries, so check both with a tax adviser before you move.
Source: OurNextCity tax tiers, assigned by hand from each country's top marginal personal income tax rate and overall tax reputation, with no fixed rate cut-offs. Coarse by design; not tax advice.
Lists with cities in St. Lucia
Moving to St. Lucia from elsewhere
How we built this page
Every figure here comes from the datasets behind our city and country pages:
- Short-stay entry: the passport-index dataset (ilyankou, MIT license), which records the entry rule for short visits on each passport.
- Residency index, routes and thresholds: the OurNextCity residency dataset, hand-reviewed against published immigration rules, figures as of June 2026. It is a summary, not legal advice.
- City ranking: our match model, the one behind the quiz, run with a typical couple's preset answers and both partners holding UK passports. It ranks up to five of the country's best-known cities: of the cities in our quiz (100,000 people or more, capitals and a few towns movers seek out, such as Faro), the five most read about on English Wikipedia over the past year. It folds suburbs into their main city and leaves out countries with a residency index under 40 and areas under a US State Department Level 4 advisory, as our best-cities lists do.
- Costs: our cost model, a country-level cost-of-living index scaled for city size, from our city dataset (last rebuilt June 2026).
- Tax tiers: three coarse bands we assign by hand from each country's top marginal personal income tax rate and overall tax reputation.