San Marino property market: prices, rules and data

San Marino is a 61 km² republic of 34,132 residents (the Q3 2025 statistical bulletin of the Ufficio Informatica, Tecnologia, Dati e Statistica, 30 September 2025) with a small, locally driven housing market. Asking prices run from about €1,100/m² for older stock in outer castelli such as Faetano and Chiesanuova to €5,000/m² for new high-end homes in the UNESCO-listed historic centre (Tecnocasa, H1 2025). Foreign individuals may buy up to two residential units for holiday use without prior authorisation from the Consiglio dei XII. Because CASAFARI Area Insights indexes very few listings here and no official price index or transaction count exists, every national figure is indicative.

What does a home in San Marino cost in 2026?

Take the road inland from Rimini's seafront and, twenty minutes later, you cross into another jurisdiction with its own notaries, its own tax rules, and nine castelli (municipalities) that few buyers outside the Riviera Romagnola can name. What surprises international advisers is the scale: the entire republic holds just 15,119 resident households (Ufficio Informatica, Tecnologia, Dati e Statistica, 30 September 2025) and, in October 2026, only 227 homes for sale in San Marino on Immobiliare.it.

In a micro-market of this size, national averages are orders of magnitude rather than precise benchmarks, and the Area Insights figures in this guide are asking prices from listings rather than closed deeds. Quarterly asking prices for apartments in Area Insights, CASAFARI's area-level price and listing data, have sat between €2,041/m² and €3,184.5/m² from Q1 2023 to Q3 2026 (queried 23 October 2026). Agency and portal snapshots show a wider spread: Tecnocasa's H1 2025 castello price ranges reported by San Marino Fixing (in Italian) run from €1,100/m² to €5,000/m², while Wikicasa's San Marino asking-price page (in Italian) puts the portal average across all residential listings at €3,849/m² in May 2026 (range €1,092–€6,780/m² on a small sample).

For a typical buyer—usually a young couple or family looking for a first home—Tecnocasa reports (H1 2025) that budgets cluster between €180,000 and €250,000 for a three-room apartment (trilocale). There is no official house price index—San Marino sits outside both Eurostat's house price index coverage and Italy's ISTAT IPAB—and the statistics office publishes no residential transaction count. You can compare this order of magnitude with neighbouring Italian provinces on our page covering property market trends across Europe.

Where is San Marino, and what are the nine castelli?

Enclosed entirely by Italy's Emilia-Romagna and Marche regions, the republic rises up Mount Titano about 20 kilometres from the Adriatic coast. Rather than a single town, the property market divides across nine castelli with distinct buyer pools and stock:

• Città di San Marino: The UNESCO-protected historic centre at the crest of Mount Titano. Strict preservation rules, tourism footfall, very few sales, and the highest prices in the republic.
• Serravalle, Borgo Maggiore and Domagnano: The lower-slope and valley castelli with the best road links toward Rimini. Serravalle includes Dogana, the main commercial and business hub, and holds the largest share of listings and everyday services. According to Tecnocasa (H1 2025), these three castelli attract the strongest local demand.
• Faetano, Chiesanuova, Fiorentino, Montegiardino and Acquaviva: The quieter, outer castelli on the hillsides bordering the Marche and Romagna countryside, where stock is older, plots are larger, and asking prices per square metre are lowest.

How much does the castello and the quality of the stock change the price?

Location and building condition create a fourfold price gap across a ten-minute drive. According to Tecnocasa's H1 2025 survey and Tecnocasa's H2 2023 new-build prices by castello (in Italian), asking prices per square metre break down clearly by segment:

Castello group	Older economy stock (H1 2025)	Older higher-grade stock (H1 2025)	New-build stock (H2 2023 / H1 2025)
Città di San Marino (historic centre)	€2,600/m²	€3,000/m²	€4,000/m² (economy) to €5,000/m² (high-end)
Faetano, Chiesanuova, Fiorentino, Montegiardino	€1,100/m²	€1,400/m²	Sparse new supply

In practical terms, a €250,000 budget buys a well-kept trilocale with parking and easy commuting in Serravalle, Borgo Maggiore or Domagnano, or a much larger, older house in Chiesanuova or Faetano that will take significantly longer to resell. On the rental side, Tecnocasa notes (H1 2025) that supply is thin and rents are rising, though no CASAFARI rent series exists for San Marino.

Can a foreigner buy property in San Marino?

Yes, within statutory limits. Under Article 51 of Law 173/2018 and Articles 23–25 of Law 154/2019 (which replaced the lapsed Delegated Decree 105/2019), a foreign natural person—meaning any non-Sammarinese citizen—may purchase up to two residential units, together with accessory rooms such as a garage or cellar, without seeking prior authorisation from the Consiglio dei XII (the twelve-member council that historically vetted every foreign acquisition).

According to OSLA's summary of the foreign-buyer rules (in Italian) and a Sammarinese accounting firm's note on purchases by foreign citizens (Studio Toccaceli Bronzetti), several strict conditions apply to this simplified route:

• The property must already be built (completed before 31 May 2017) or at shell stage, and bought outright for consideration.
• The home must be intended strictly as a holiday residence for the buyer and their family.
• The buyer pays ordinary registration tax without first-home tax relief, and the notary must attach criminal-record certificates to the deed.
• Sammarinese legal persons may hold up to 10 units linked to their business activity, though real-estate companies are excluded from the simplified route; anything above these caps requires Consiglio dei XII authorisation.

Crucially, buying a home under the two-unit holiday route does not confer legal residence. For foreigners who do obtain residence—and for spouses or direct descendants of Sammarinese citizens—the rules are simpler: following the May 2025 Consiglio dei XII resolution on registration by resident foreigners (in Italian), reported by Altarimini, legally resident foreigners may register property in their own name from their first day of residence, removing the previous five-year wait. Because this legal framework has already changed form once between decree and statute, always confirm the operative text with a Sammarinese notary before signing a preliminary contract.

Does a property purchase lead to residence, and what are the taxes?

While a standard holiday-home purchase grants no residency rights, San Marino operates separate residence-by-investment and retiree regimes, alongside a distinct tax code. Both the residence criteria and tax rates should be verified directly with a local lawyer or notary against the Bollettino Ufficiale before committing capital.

For investors and relocators, the environment is structured around primary residents and holiday users rather than buy-to-let landlords—a distinction worth keeping in mind when reviewing what CASAFARI offers investors. Because non-resident foreign buyers under Law 154/2019 are restricted to personal and family holiday use, the market primarily serves local families, Italian cross-border workers relocating across the border, and retirees or entrepreneurs applying through dedicated residence quotas.

Who lives in San Marino, and where does housing demand come from?

Official demographic data from the Ufficio Informatica, Tecnologia, Dati e Statistica (as of 30 September 2025) explains why demand focuses on two- and three-room apartments in the valley castelli. The republic has 34,132 residents (+145 year on year) and a present population of 35,555 including temporary stayers. Those residents form 15,119 households (+167 year on year), with an average household size of just 2.25 people; 34.8% of all households are single-person.

Population growth is entirely immigration-led. Between January and September 2025, San Marino recorded 118 births and 210 deaths (a natural balance of −92), offset by 304 new immigrants—mainly from Italy—against 125 emigrants. By citizenship, 79.3% of residents are Sammarinese (down by 35 over twelve months), 16.4% are Italian citizens (up by 222), and 4.3% hold other nationalities (up by 16). Steady inflows from the neighbouring provinces of Rimini and Pesaro-Urbino underpin the housing market.

How should you read the CASAFARI data for San Marino?

In a country with roughly 227 active listings on a major portal, any automated price series must be read with care. In CASAFARI Area Insights (location id 544486), the average asking price for apartments moved from €2,683/m² in Q4 2023 to €3,184.5/m² in Q4 2024 (+18.7% on a very small listing base). From Q4 2024 through Q2 2026, no new apartment data was indexed, so the €3,184.5/m² reading was carried forward unchanged for seven quarters, followed by a €2,286/m² reading in Q3 2026 based on a single-listing-level sample (queried 23 October 2026).

This shape is the natural result of a 61 km² market where most sales happen quietly through local agencies. Rather than relying on a national quarterly line that a single penthouse or rural rustico can skew, practitioners pricing an individual home use valuations, Comparables and market studies to inspect actual nearby listings on the border of Serravalle or Borgo Maggiore.

For proptech and analytics teams, the same underlying series and property-level checks are accessible via the Area Insights API documentation and the Comparables and valuation API documentation, while researchers who need a bespoke cross-border extract can use Data Services for bespoke market extracts.

What are the risks of buying in San Marino?

Advisers guiding international clients into San Marino typically weigh five structural risks:

1. Illiquidity: With 15,119 households (September 2025) and around 227 listings on Immobiliare.it (October 2026), resale times can be long and bid-ask spreads wide, particularly in the outer castelli.
2. Regulatory shifts: The foreign-buyer opening moved from a lapsed decree to Law 154/2019 within months in 2019, and residence rules are periodically revised by the Consiglio Grande e Generale and Consiglio dei XII.
3. Data opacity: Without an official house price index or transaction register, a handful of new listings can shift portal averages by 15–20% in a single quarter.
4. Demographic and economic concentration: A negative natural balance (−92 in January–September 2025) makes housing demand dependent on Italian immigration and cross-border economic ties.
5. Holiday-use restrictions: Non-resident foreigners buying under the two-unit exemption are limited to holiday use, capping the resale pool among pure yield investors.

Whether you are comparing a hillside home in Borgo Maggiore with the Rimini coast or checking listing history across the republic, you can inspect the live market directly with a CASAFARI account on platform.casafari.com.