Real estate in Saint-Louis (Senegal): heritage island, coastal risk, land title and lease, what to check

Buying or renting in Saint-Louis, Senegal comes down to three checks: which part of the city the property sits in, what title the seller holds, and what the lease is allowed to demand. The commune has 254,171 inhabitants according to the 2023 census, RGPH 2023 (commune page on Vie Publique Sénégal, accessed 10 October 2026). The island is covered by a safeguarding plan that regulates building works, and the Langue de Barbarie is exposed to erosion. We give no prices here: we found no public, dated price series by neighbourhood for Saint-Louis.

Where to look: the island, the Langue de Barbarie, the mainland

Geography comes before budget. According to a World Bank blog post dated 2 October 2024 (accessed 10 October 2026), the city is made up of a mainland part, an island and the Langue de Barbarie. Each one raises a different question for a buyer.

Langue de Barbarie: coastal risk first

That World Bank post describes the Langue de Barbarie as a narrow strip of sand along the Atlantic Ocean. It reports the resettlement of some 15,000 residents from the zone at very high risk of erosion and marine flooding ("zone à très haut risque d'érosion et de submersion marine") to a permanent site in Diougop, 10 km from where they lived. According to Le Soleil of 9 May 2026 (accessed 10 October 2026), the SERRP programme plans 436 social housing units in Diougop, in the commune of Gandon, of which 304 were finished at that date.

Before making any offer on the Langue de Barbarie, ask the town hall (mairie) in writing whether the plot lies in the zone covered by this resettlement. A seller in a hurry is not an answer.

Ngallèle and the mainland: check the subdivision plan

A dispatch from the Agence de Presse Sénégalaise dated 5 August 2026, republished by AllAfrica (accessed 10 October 2026), describes Ngallèle as a fast-growing neighbourhood of the commune of Saint-Louis ("quartier de la commune de Saint-Louis en pleine expansion"), close to Gaston Berger University. It reports many land disputes and a residents' collective asking for the "Ngallèle 2000" subdivision plan to be upheld. That plan reserves land for a health post, a mosque or a school.

If a broker (démarcheur) offers you a plot in Ngallèle, have it located on the subdivision plan and check that it does not fall on land reserved for a public facility. Have a surveyor (géomètre) confirm the boundaries before any payment. Our article on land checks before buying a plot walks through these controls, and the one on common property scams explains how the same plot gets sold several times.

Buying on the island: works regulated by the PSMV

No, you cannot freely alter a house on the island. The "Réglementation" page of the Saint-Louis town hall website (accessed 10 October 2026) states that the Plan de Sauvegarde et de Mise en Valeur (PSMV, the safeguarding and enhancement plan) was approved by presidential decree n°2008-694 and has applied since 30 June 2008 ("est d'application depuis le 30 juin 2008"). The page presents it as a detailed urban plan, binding on third parties, that regulates works, construction and urban development.

It describes two perimeters:

• Zone PM (Patrimoine Mondial, World Heritage): the island, the quays and banks, the Faidherbe bridge.
• Buffer zones: the river and its banks, the Langue de Barbarie, the banks on the Sor side.

The town hall page offers the standard forms: planning certificate (certificat d'urbanisme), demolition permit, building permit, certificate of conformity. Before signing for a house that needs renovation, ask the town hall how the building is classified in the PSMV and what the regulation allows on the plot. The page does not say which office issues the authorisations or how long it takes: ask in writing. Have a notary or a lawyer review the preliminary contract and add a condition tied to obtaining the authorisations.

Land title: what the seller must prove

The land title (titre foncier) is the strongest proof of ownership in Senegal. Law n° 2011-07 of 30 March 2011 on the land ownership regime (text reproduced by Keur City, summary page on Vie Publique Sénégal, both accessed 10 October 2026) states in article 42: "Le titre foncier est définitif et inattaquable" (the land title is final and unassailable).

A title is not enough if it is out of date. Under article 20 of that law, real rights "n'existent, ne se conservent et ne produisent effet à l'égard des tiers qu'autant qu'ils ont été rendus publics": they exist and bind third parties only once made public, that is, entered in the land register (livre foncier). Article 77 allows anyone to obtain the information recorded in the land registers, and article 78 provides that the request is made to the registrar, the "conservateur de la propriété et des droits fonciers".

In practice:

1. Ask the seller for the land title number.
2. Have a notary obtain a recent statement of real rights (état des droits réels) from the registrar: it shows the registered owner, mortgages and charges.
3. Compare the seller's identity with the registered owner's.
4. Sign the sale before a notary, then check that the transfer (mutation) has been registered in your name.

If the seller shows any paper other than a land title, pay nothing until a notary or a lawyer has told you what that document is worth.

On costs, we give no percentage: the sources we found contradict each other on the registration duty rate, and we could not open the tax text in force. Ask the notary for a written breakdown that separates registration duties, land registry formalities and fees. The mechanism is explained in our article on property purchase costs, and the buying process in Senegal in our guide to buying a house in Dakar.

Renting in Saint-Louis: deposit and rent payment

The deposit (caution) is capped by a national text. Journal officiel n°7605 (table of contents accessed 10 October 2026) publishes decree n° 2023-382 of 24 February 2023 amending law n° 2014-03 of 22 January 2014 on the reduction of rents not calculated on the corrected surface area. Its content is reported by SenePlus on 7 March 2023 (accessed 10 October 2026): for residential leases of up to 500,000 FCFA per month, the deposit may not exceed the equivalent of two months' rent, with only one month payable on moving in and the balance spread over twelve monthly instalments. Rent is payable at the end of the month of occupancy, and the agency commission is cut to half a month's rent for those same leases.

Reduction imposed on residential rents in place on 1 March 2023, as reported by SenePlus (7 March 2023):

We could not read the decree itself or confirm that it has not been amended since: if you disagree with a landlord, have a lawyer check the text in force. Before signing, read our article on leases, deposits and notice and our viewing checklist.

Frequently asked questions

Can you freely renovate a house on the island of Saint-Louis?

No. According to the "Réglementation" page of the Saint-Louis town hall website, in Senegal, the PSMV approved by decree n°2008-694 has applied since 30 June 2008 and regulates works and construction on the island, the quays and the Faidherbe bridge. Ask the town hall what the regulation allows on the building you are considering, and have a notary or a lawyer write a condition on obtaining the authorisations into the preliminary contract.

What are property prices in Saint-Louis?

We do not publish any, for lack of a reliable source. We found no public, dated series of prices or rents by neighbourhood for Saint-Louis. Compare several properties in the same area, ask a local notary about recent sale prices, and negotiate on points you can verify: title, condition of the building, PSMV constraints, exposure to coastal risk.

What should you check before buying land in Ngallèle?

Where the plot sits on the subdivision plan. An APS dispatch of 5 August 2026 reports many land disputes in this neighbourhood and land reserved for public facilities in the "Ngallèle 2000" plan. Have a surveyor locate the plot, ask for the seller's title, and have a notary check that title before any payment.

How much deposit can a landlord ask for?

In Senegal, for a residential lease of up to 500,000 FCFA per month, two months' rent at most, with only one month payable on moving in, according to the content of decree n° 2023-382 as reported by SenePlus on 7 March 2023. The balance is spread over twelve months. Have a lawyer confirm the text in force if the landlord asks for more.

Does a land title protect you from every dispute?

Article 42 of law n° 2011-07 says the land title is final and unassailable ("définitif et inattaquable"). You still need to check who is entered in the land register and what charges weigh on the property. A recent statement of real rights, obtained by a notary from the registrar, answers both questions.

To compare with other cities in the country, see our guides to Dakar and Thiès. These rules are Senegal's: they differ in other countries.

Sources

• Saint-Louis town hall, "Réglementation" page: PSMV approved by decree n°2008-694, in application since 30 June 2008, zone PM and buffer zones, standard forms. Accessed 10 October 2026.
• Law n° 2011-07 of 30 March 2011, text reproduced by Keur City: articles 5, 20, 42, 77 and 78. Accessed 10 October 2026.
• Vie Publique Sénégal, page on law n° 2011-07: overview of the articles on registration, entries and consultation of the land registers. Accessed 10 October 2026.
• Vie Publique Sénégal, Journal officiel n°7605: title and date of decree n° 2023-382. Accessed 10 October 2026.
• SenePlus, 7 March 2023: reduction scale, deposit, rent payment, agency commission. Accessed 10 October 2026.
• World Bank, blog post of 2 October 2024: layout of the city, erosion risk, resettlement in Diougop. Accessed 10 October 2026.
• Le Soleil, 9 May 2026: 436 units planned in Diougop, 304 finished. Accessed 10 October 2026.
• APS via AllAfrica, 5 August 2026: Ngallèle, land disputes, "Ngallèle 2000" plan. Accessed 10 October 2026.
• Vie Publique Sénégal, commune of Saint-Louis: 254,171 inhabitants (RGPH 2023). Accessed 10 October 2026.