How a town hall can help a mosque
The relationship with the town often decides the fate of a mosque project. You hear everything and its opposite: that a town hall can do nothing, or that it could fund the building. The law is more precise. A subsidy to worship is forbidden, but several framed forms of support exist, and the way the project is presented matters as much as the project itself. This page brings together what the law says and how to approach it.
In Baghdad, in the ninth century, the House of Wisdom, the Bayt al-Hikma, became a great home of translation and science thanks to lasting support from the authorities and the city. Institutions that last over time often arise from support shared between a community and the public power, within a clear framework.
On this page
- The principle: no subsidy to worship
- What is forbidden, what remains possible
- The administrative long lease
- The loan guarantee
- The sale or provision of land
- Mixed projects and local public interest
- The case of Alsace-Moselle
- The condition that always returns: the religious association
- Preparing the exchange and choosing the moment
The principle: no subsidy to worship
Everything starts with article 2 of the law of 9 December 1905: the Republic neither recognises, nor pays, nor subsidises any religion. A town therefore cannot pay any sum, direct or indirect, to build or keep a mosque alive. The rule is firm. Its first practical consequence fits in one sentence: do not build a financing plan counting on a public subsidy, because it will not come. Everything that follows describes what the law allows despite this principle, and always within its limits.
What is forbidden, what remains possible
The border runs between support for the exercise of worship, which is prohibited, and arrangements that do not amount to offering money to a religion. Here are the main markers.
| Forbidden | Possible, under conditions |
|---|---|
| Paying a subsidy to build or run the mosque | Leasing municipal land by a long lease to a religious association |
| Selling or transferring land below its value | Selling land at its fair price |
| Granting a payment facility or a free advantage | Guaranteeing a loan for the religious building |
| Funding the prayer hall of a mixed project | Supporting the cultural or social part, where there is a local public interest |
The administrative long lease
This is the main route open to place-of-worship projects. Provided for in article L.1311-2 of the general code of local authorities, the administrative long lease lets a town lease land for a long period, up to ninety-nine years, for a modest rent. The association builds the mosque there and operates it for the whole duration of the lease, then the building returns to the town at its end. The Council of State confirmed in July 2011 that this mechanism lawfully departs from the principle of non-subsidy.
Two conditions are strict. The first: this religious lease is open only to a religious association under the 1905 law. The Council of State annulled a lease granted to a body that did not have this status. The second: the town cannot add, alongside the lease, a free advantage that would amount to a disguised subsidy. The administrative courts thus annulled, in Bagnolet, a resolution granting free payment facilities on the early buyback of the land.
The loan guarantee
A town can also guarantee a loan taken out by the association to build the building. It pays nothing, but its guarantee reassures the lender and eases access to credit. Since the law of 24 August 2021, a transparency step is added: before granting a loan guarantee or concluding a long lease for a religious building, the town must inform the prefect beforehand.
The sale or provision of land
A town can sell land to an association, but at its fair price. Selling below value, or granting an unjustified discount, would be reclassified as a forbidden subsidy. It is the same logic as in Bagnolet: any financial advantage without a real consideration falls under the 1905 law. The price must reflect the value of the property, and the payment terms must conceal no gift.
Mixed projects and local public interest
A project is not always limited to the prayer hall. Many mosques come with cultural, social or educational spaces open to the neighbourhood. For this non-religious part, and for it alone, an authority can step in where a local public interest justifies it, in respect of neutrality and equality between religions. The line is narrow, because the support must never benefit the exercise of worship itself. This is why the project's accounts must clearly separate what relates to worship from what does not, failing which the support becomes irregular.
The case of Alsace-Moselle
In the Bas-Rhin, the Haut-Rhin and the Moselle, local law applies and the 1905 law does not run there in the same way. The religions recognised by the Concordat enjoy a particular regime there, but the Muslim religion is not among them: a Muslim association there falls under the local law of associations with a religious purpose. The possibilities of support differ there and are checked case by case with the prefecture's departments.
The condition that always returns: the religious association
The lease, like the most useful advantages, assumes a religious association of the 1905 law. It is a weighty argument when choosing the status, which we compare in the guide 1901 or 1905. Since the law of 24 August 2021, this status is declared: the association declares its religious character to the prefect, a declaration to be renewed every five years, and it is this that opens the advantages specific to religious associations, including the long lease and the issuing of tax receipts. The same law requires declaring funding from abroad above ten thousand euros, which the prefect may refuse. It is better to know these obligations early, because they shape the whole scheme of the project.
Preparing the exchange and choosing the moment
Beyond the law, the success of a project often rests on preparation and timing. The moment matters: we are at the start of a municipal term, after the elections of March 2026 and before the next renewal of 2032, which opens a period favourable to dialogue, far from a campaign. Building the file, the questions to ask and the conduct of dialogue over time are brought together on a dedicated page, preparing the exchange with the town hall.
Frequently asked questions
Can a town hall fund the building of a mosque?
No, not through a subsidy. Article 2 of the law of 9 December 1905 forbids subsidising a religion. A town therefore cannot pay any sum, direct or indirect, to build or run a mosque. You must not build a financing plan counting on public support of this kind.
What is the administrative long lease?
It is a long-term lease, provided for in article L.1311-2 of the general code of local authorities, by which a town leases land for a modest rent. The association builds and exercises its worship there; at the end of the lease, the building returns to the town. For a religious building, this lease is reserved for religious associations of the 1905 law, as the Council of State has confirmed.
Can a town guarantee a loan?
Yes, within a precise frame. A local authority can guarantee a loan taken out to build a religious building, which reassures the lender without it paying any money. Since the law of 24 August 2021, it must inform the prefect before granting such a guarantee or concluding a long lease.
Can a town sell land to the association?
Yes, but at fair price. Selling below value, or granting a disguised discount, would be reclassified as a subsidy forbidden by the 1905 law. The administrative courts penalised a town that had granted free payment facilities when selling land intended for a mosque.
Is this support open to an association under the 1901 law?
The most useful forms, starting with the religious long lease, assume a religious association of the 1905 law. This is one of the arguments that can justify choosing that status, covered in our dedicated guide.
When is the right time to approach the town hall?
Rather at the start of a municipal term, far from an election. The last municipal elections took place in March 2026 and the next ordinary renewal will be in 2032. As a vote approaches, a place-of-worship project can become a campaign topic, which complicates dialogue.
Must funding from abroad be declared?
Yes. Since the law of 24 August 2021, a religious association must declare advantages and resources from abroad above ten thousand euros, and the prefect may object if a fundamental interest of society is at stake.
To go further
This page complements our overview, Building a mosque in France. For the choice of status, see 1901 or 1905; for financing through donations, the tax receipt and organising donations.