Buying a Castle in Europe as a Foreigner
Only Switzerland and Denmark restrict foreign castle buyers. Everywhere else needs a tax ID, local bank account and 3–10% transfer tax.
The map looks more open than most foreign buyers expect. Of the ten markets we track for meaningful castle supply, only two place real regulatory weight on a foreign acquisition.
Switzerland is one. Denmark is the other. Everywhere else (France, Germany, Italy, Spain, Belgium, Poland, the UK, Ireland) there is no foreign-buyer permission to chase. The friction is operational rather than regulatory. You will need a local tax ID and a local bank account before you can transact: NIE in Spain, codice fiscale in Italy, PESEL in Poland, and so on.
What the regulatory map does not show is the cost stack. The headline price is half the picture. On top, transaction costs run from around 3% in Italy to 12.5% in Flanders, and that 9-point swing is bigger than most regional pricing differences across the European medians by country. Knight Frank's 2024 Wealth Report puts 19% of UHNW clients globally on a second-passport plan, and citizenship-by-investment programmes in Italy, Greece, Cyprus and Turkey all count heritage property purchases.[1]
| Country | Foreign buyers | Tax + fees | Mortgage (non-resident) |
|---|---|---|---|
| France | Open | 7–8% | 40–60% LTV |
| Germany | Open | ~5–8% | 50–70% LTV |
| Italy | Open | ~3–4% | 40–60% (restored only) |
| Spain | Open | ~10% | 50–60% (habitable only) |
| Belgium | Open | 3% (Wallonia) / 12.5% (Flanders) | 60–80% LTV |
| Poland | Open EU; permission for non-EU | ~4–5% | Limited; cash typical |
| United Kingdom | Open | SDLT + 2% non-resident | 40–60% LTV |
| Ireland | Open | ~3–5% | 50–70% (habitable) |
| Switzerland | Restricted (Lex Koller) | 1.5–6% by canton | Residents only |
| Denmark | MoJ permission for non-EU | ~2–3% | Residents only |
Switzerland's Lex Koller and Denmark's MoJ permission are the two real foreign-buyer constraints
Lex Koller is the harder of the two. Formally it is the Bundesgesetz über den Erwerb von Grundstücken durch Personen im Ausland (BewG). In practice it means non-resident foreign buyers need cantonal authorisation to acquire residential property, and the quotas are allocated canton by canton. Many cantons refuse outright. Others restrict approvals to designated tourism zones.[2]
If you happen to hold Swiss residence (B or C permit) and you are an EU or EFTA citizen, you can acquire under broadly the same terms as a Swiss national. Without that, expect three to six months on the application alone, and no guarantee of approval at the end of it. Combine that with a Swiss castle market median sitting at €19,551/m², and the practical answer for most foreign buyers without prior Swiss residence is that this is not really a market they can enter.
Denmark's Ministry of Justice permission requirement is the lighter cousin. It applies to non-EU buyers who have not established Danish residence. The application is administrative rather than substantive, and most cases proceed once the buyer demonstrates intent to use the property residentially. What it does add is a two to six month timeline, plus uncertainty around exchange of contracts that you do not get on a French or Irish transaction. EU buyers face no such restriction.
Worth saying upfront, those are the only two doors. The other eight markets are open in the regulatory sense; they just expect you to do the paperwork.
Most other European jurisdictions impose no purchase restrictions on heritage property
The substantive position across most of Europe is that foreign buyers face no formal purchase restrictions on heritage castle property. The work is in setting up the local-jurisdiction transaction infrastructure before exchange.
France requires no foreign-buyer permission for residential or heritage property. The practical workflow runs through a French notaire, who handles the acte authentique (the deed itself) and the droits d'enregistrement (the registration tax). Foreign buyers typically need a French bank account and tax registration in place before transaction. Specialist French private banks (BNP Paribas Wealth Management, SG Private Banking, Crédit Agricole Indosuez) lend on heritage property at 40 to 60% LTV.
Germany requires no foreign-buyer permission either. The workflow runs through a German Notar, who handles the Grundbuch (land register) entry. Non-EU buyers commonly need additional documentation on top: residence permit if applicable, source-of-funds documentation, tax residency proof. The substantive purchase right is not restricted. Grunderwerbsteuer varies by federal state from 3.5% to 6.5%, plus around 2% notary and registry. Total transaction cost typically runs 5.5 to 8.5%.
Italy requires foreign buyers to get a codice fiscale (Italian tax code) and a local bank account before any real property work starts. The Italian state holds pre-emption rights (prelazione) on certified culturally significant transactions, which gives the state 60 days from contract notification to step in and buy the property itself at your agreed price. Yes, really. That changes the financing calendar, and it means deposits can sit at risk for two months. Italian banks lend selectively at 40 to 60% LTV, with strong preference for already-restored properties.
Spain requires foreign buyers to get an NIE (Número de Identidad de Extranjero) and a Spanish bank account. Spanish banks lend at 50 to 60% LTV to non-residents on habitable, legally compliant properties, and properties needing significant restoration are typically excluded from mortgage lending until the work is complete. Transaction costs run roughly 10% on top of the headline price, dominated by ITP (Impuesto sobre Transmisiones Patrimoniales) at 6 to 10% varying by autonomous community.
Belgium imposes no foreign-buyer restrictions on heritage property, but the regional registration-tax structure creates the largest single-jurisdiction tax arbitrage in Europe. Wallonia charges 3% on a primary residence. Flanders and Brussels charge 12.5%. On a €2 million purchase, that is a €190,000 swing on which side of the language line you sit. It is the structural reason most foreign-buyer transactions for residential castle ownership in Belgium concentrate on the Walloon side.
Poland imposes minimal restrictions for EU buyers since the 2016 simplification. Non-EU buyers may need a zezwolenie permit for certain agricultural-land transactions, though not generally for residential or heritage castle purchases. Bank financing for non-residents is constrained, and most foreign castle acquisitions in Poland happen in cash and refinance later through Polish institutions.
The United Kingdom imposes SDLT plus a 2% non-resident surcharge on foreign buyers. On a £2 million castle, that is roughly £213,000 in SDLT alone. UK castle mortgages are specialist products from a small group of private banks (Coutts, Handelsbanken, Lombard Odier) at LTVs of 40 to 60%.
Ireland is exceptionally favourable for foreign buyers, and we say that with the verified data behind it. Stamp duty is 1% (the lowest in Western Europe for this asset class). There is no non-resident surcharge, and mortgage availability runs at 50 to 70% LTV for non-residents on habitable properties. Total transaction cost runs around 3 to 5%.
Citizenship-by-investment programmes recognise heritage property purchases
Knight Frank's 2024 Wealth Report Attitudes Survey records 19% of UHNW clients globally planning to apply for a second passport or new citizenship in 2024. The figure peaks at 43% in Latin America and 38% in Africa, with Europe at 13% and North America at 26%.[1] Heritage castle ownership is one of the few asset classes we see used as the qualifying vehicle in more than one of these programmes simultaneously. Citizenship-by-investment programmes in Italy, Greece, Portugal, Cyprus and Turkey all recognise heritage property purchases as qualifying investments, though the terms diverge.
Italy offers the investor visa for €500,000+ in qualifying investments, including residential property; the broader elective residency visa is more relevant for retired UHNW buyers. Greece runs the Golden Visa programme: €250,000 to €500,000 minimum property investment depending on region, leading to permanent residency and an eventual citizenship pathway. Portugal's Golden Visa programme has been substantially restricted for residential property since the 2023-24 reforms, and the residential property pathway is now largely closed, though cultural-heritage and investment-fund pathways remain. Cyprus offers permanent residency through a €300,000+ property investment. Turkey offers citizenship through a $400,000+ property investment.
The cleaner read on the foreign-buyer position is this. The formal regulatory framework restricts only Switzerland (Lex Koller) and Denmark (MoJ for non-EU). Everywhere else the friction is operational: tax IDs, bank accounts, mortgage financing, transaction-cost stacks. The practical buying workflow varies substantially by jurisdiction, and prospective buyers should engage local specialist counsel before exchange of contracts: notaire in France, Notar in Germany, notaio in Italy, abogado in Spain, solicitor in the UK and Ireland.
Three concrete steps for foreign buyers before exchange of contracts
Step one, set up the local-jurisdiction transaction infrastructure. NIE in Spain, codice fiscale in Italy, French tax registration, German Steuer-ID, Polish PESEL. Most jurisdictions require local tax registration plus a local bank account before any property transaction will proceed. Allow four to twelve weeks for the registration phase before substantive purchase work begins. We have watched buyers waste a month assuming this could be done in parallel with exchange, and it cannot.
Step two, get the structural survey from a heritage-grade specialist before exchange. Specialist heritage building surveyors charge €5,000 to €15,000 for a comprehensive structural and condition survey on a substantial castle. That sits well above the €1,000 to €2,000 typical residential survey, but it is mandatory for credible due diligence on heritage property. The premium pays for itself by surfacing the major structural issues (roof failure, masonry deterioration, drainage failure, dry rot) that ordinary residential surveyors miss.
Step three, scope the heritage-consent regime before exchange. A pre-application discussion with the relevant national heritage authority (the Local Planning Authority in the UK, DRAC and ABF in France, Soprintendenza in Italy, Denkmalschutzbehörde in Germany) gives you a credible read on the consent landscape for the restoration scope you are contemplating. If you get materially adverse pre-application feedback, that has to change your bid. What I keep coming back to in the documented case record is that the consent regime is the single largest unknown in heritage castle transactions, and it is the one buyers most often discover after exchange rather than before. Reverse that order and the whole transaction calms down.
For working buyer information on the live for-sale castle market across all major European jurisdictions, see How to Buy a Castle and our country pages.
References
1. Knight Frank, The Wealth Report 2024.
2. Castle Collector, Castle Price Index, March 2026.