Greater West: 51 hotel conversions approved, Rennes leads with 11,215 m²

We spontaneously associate Brittany and the Pays de la Loire with summer seaside tourism. The planning data tells another story: that of metropolitan areas durably converting existing floor space into hotel-type accommodation (hébergement hôtelier), right in their centres.

Across the three municipalities analysed — Rennes, Nantes and Vannes — 51 planning applications were approved (excluding cancelled applications) to convert existing buildings into hotel-type accommodation. These projects represent 22,347 m² of converted floor space, for 18,790 m² of created floor space and 497 rooms. The momentum remains strong: 13 applications have been submitted and approved since 2024.

Also worth noting: 17 applications were cancelled over the same period. This rate, far from negligible, is a reminder that not every application submitted goes through, and that a solid case makes the difference between an intention and an actual approval.

This is the standout fact of this vintage. Rennes accounts for 23 applications covering 11,215 m² converted and 252 rooms, while Nantes shows 19 applications but only 4,994 m² and 94 rooms. In other words, the Breton capital converts, on average, considerably larger volumes per operation.

The reading is clear: in Rennes we see large-scale projects — generous floor areas, a high number of rooms — whereas Nantes favours smaller, more numerous operations. Since 2024, Rennes has approved 8 new applications against just one for Nantes, a sign of acceleration on the Breton side.

This difference has concrete implications for a project sponsor. Large floor areas entail greater regulatory and technical constraints (accessibility, fire safety, acoustic insulation), but they also open the way to more ambitious operating models. To refine a search down to a specific address, the mapping tool remains the best starting point: consult the observatory for Rennes.

With just 9 applications, Vannes might appear marginal. The floor areas say otherwise: 6,138 m² converted and 151 rooms, more than Nantes with half as many projects. The town therefore concentrates very large-scale operations.

The most telling example is the conversion of a former public-service building on Avenue du Maréchal de Lattre: 2,885 m² approved for 70 rooms in December 2025. Here we read an interesting trend: former public facilities rehabilitated into hotel-type accommodation, a land resource that investors often underestimate.

Vannes also illustrates recent vitality: 4 of its 9 applications have been approved since 2024. Among the recent operations, there is also an 864 m² project from residential premises on Rue du Colonel Pobéguin (March 2026) and a retail conversion on Place Gambetta (667 m², September 2025). The town thus combines several building origins, with no single dominant type.

Across the three municipalities, the origin of the converted floor space reveals a clear hierarchy:

• Residential: 19 applications, by far the leading source. Flats or residential buildings redirected towards hotel-type accommodation use.
• Offices: 10 applications, concentrated mainly in Nantes (6 applications). The context of office vacancy logically feeds this flow.
• Retail: 8 applications, spread across the three towns.

In Rennes, the breakdown is distinctive: 8 applications from residential premises, but also 5 applications from existing hotel-type accommodation (restructuring, extensions or bringing up to standard) and 4 from retail. In Nantes, the residential (8) / office (6) pairing dominates. On the Loire side, the office conversion on Rue du Pont Sauvetout (259 m², January 2026) illustrates this shift from offices to hospitality.

For an owner, these figures signal where the opportunities lie: a well-located residential building, a vacant floor of offices or a declining retail unit can form the basis of a hotel project. But you still need to secure the change of destination towards hotel-type accommodation, a decisive step specific to each local situation.

Three lessons emerge for anyone considering a project in the Greater West.

First, the Breton market is mature. Rennes and Vannes concentrate substantial floor areas and sustained recent activity. This is not a seasonal niche market but an underlying urban dynamic, driven by the appeal of town centres and the steady arrival of year-round visitors.

Second, scale matters. The Rennes/Nantes difference shows that converted floor space is a better indicator of ambition than the mere number of applications. A hotel project is judged on its square metres, its number of rooms and its operating model — not simply on its statistical frequency.

Third, execution is everything. With 17 cancelled applications across the area, the risk of administrative failure is real. A planning application must anticipate local rules, operating standards and the project's consistency with the local plan (PLU).

To delve deeper into the local framework and operating conditions, see our dedicated page on Rennes and our guide to letting in Rennes. If your project concerns structuring a professional accommodation offer, our hotel-type accommodation page sets out the key steps.

The figures in this article are drawn from the Sitadel database (Service des données et études statistiques — SDES), which records planning authorisations creating hotel-type accommodation floor space through the conversion of existing buildings, since 2013.

The volumes presented (applications, floor areas, rooms) relate to approved applications, excluding cancelled applications. The 17 cancelled applications mentioned are excluded from the headline totals. Data vintage: 2026-09. Floor areas are expressed in square metres and may be rounded for readability. To explore operations down to the address, use the Agence BnB observatory.