Drivers, residents and public transport users in Monaco should prepare for temporary traffic disruption over the coming weeks. From Wednesday 4 November to Friday 4 December 2026, the Principality’s Department of Urban Development (Direction de l’Aménagement Urbain – DAU) will carry out a programme of road maintenance and resurfacing works across several major streets.

The aim is to improve road conditions and enhance traffic safety. To allow the works to proceed, temporary traffic arrangements will be introduced, including road closures, alternative routes and restrictions on access to certain car parks.

Most of the work will be carried out overnight, when traffic volumes are generally lower. The programme is divided into two main phases: 4–7 November and 23 November–4 December.

Temporary road signs and information notices will be installed throughout the affected areas, including at the entrances to nearby buildings, to keep residents and motorists informed.

Buses, pedestrians and emergency services: what to expect

Emergency vehicles and law enforcement services will retain access to all areas whenever necessary. Pedestrian routes will also remain open and clearly signposted to ensure safe passage.

Some urban and regional bus services will be affected by diversions, mainly from 8 pm onwards. Changes will concern services operated by the Compagnie des Autobus de Monaco (CAM) and the regional ZOU! network.

Updated information about routes and stops will be provided directly by the respective transport operators.

Roadworks at Place d’Armes, Avenue Prince Pierre and Rue Grimaldi: 4–7 November

The first phase will affect Avenue Prince Pierre, Rue Grimaldi and Place d’Armes. Works are scheduled overnight from 4 to 7 November, between 6 pm and 6 am, with traffic restrictions mainly coming into force from 8 pm, particularly along Rue Grimaldi.

Access to Rue Castelleretto will be maintained through manual traffic control.

The La Colle car park will only be accessible from Boulevard Charles III, while vehicles leaving the car park must use Rue de la Colle.

The Place d’Armes roundabout will be closed. However, the Dorsale, Rainier III and Albert II tunnels will remain open.

To reach Monaco-Ville, also known as Le Rocher, drivers will need to use the Serravalle Tunnel and continue along Avenue du Port, where traffic will be managed manually. Vehicles leaving Le Rocher will only be able to exit via Avenue du Port.

Boulevard du Larvotto: works overnight on 23–24 November

Further roadworks are scheduled on Boulevard du Larvotto during the night of 23–24 November, from 8 pm to 1 am.

Access to and exit from the des Sources car park will remain unaffected.

Residents and users of the des Carmes car park will still be able to reach their destination via a manually controlled traffic system operating from the Avenue de Grande-Bretagne roundabout.

Avenue Princesse Grace: road closures and car park restrictions from 23 November to 2 December

This is one of the areas most affected by the resurfacing programme. Works along Avenue Princesse Grace will take place over several nights, with changing traffic arrangements and access restrictions affecting hotels, buildings and car parks in the area.

Night of 23–24 November, from 8 pm to 6 am

Access to the Testimonio I, Bahia and Sporting car parks will be permitted until midnight, although delays of up to 20 minutes may occur. Entry will be prohibited from midnight until 6 am.

Between 1 am and 6 am, alternating one-way traffic will be introduced between the Sporting roundabout and the Sea Club.

Night of 24–25 November, from 8 pm to 6 am

The road section between the Monte-Carlo Bay roundabout and the Allée Emmanuel-Gonzales roundabout will be closed to traffic.

Access to the Méridien hotel, the Le Roccabella building and the Sporting complex will be maintained through manual traffic control.

The des Sources and du Larvotto car parks will remain accessible, while entry to the Testimonio I car park will be prohibited.

Night of 25–26 November, from 8 pm to 6 am

The closure between the Monte-Carlo Bay roundabout and the Allée Emmanuel-Gonzales roundabout will remain in place.

Access will be prohibited to the Sporting car park, the Monte-Carlo Bay hotel, the Méridien hotel and the Le Roccabella building.

The des Sources and du Larvotto car parks will remain open. Testimonio I car park will only be accessible from the Roquebrune direction.

Night of 26–27 November, from 8 pm to 6 am

Traffic will be suspended between the roundabout at the Le Roccabella building and Boulevard du Larvotto.

Access to the Sporting complex and the Monte-Carlo Bay hotel will be prohibited.

The Le Roccabella building, the Méridien hotel and the du Larvotto and Testimonio I car parks will remain accessible via the Larvotto exit direction.

The des Sources car park will be inaccessible.

Nights from 30 November to 2 December, from 8 pm to 6 am

The final phase of works on Avenue Princesse Grace will involve closing the road section between the Sea Club and Boulevard du Larvotto. Residents will be exempt from the restriction.

Access to the Sporting complex and the Monte-Carlo Bay hotel will be prohibited.

The Le Roccabella building, the Méridien hotel and the Testimonio I and du Larvotto car parks will remain accessible via the Larvotto exit direction.

The des Sources car park will remain closed to incoming traffic.

Boulevard Princesse Charlotte: overnight closure on 2 December

Further works are scheduled on Boulevard Princesse Charlotte during the night of 2–3 December, from 1 am to 6 am.

Traffic will be prohibited from Avenue Saint-Michel onwards. Residents will nevertheless retain access through a manually controlled traffic system.

Rue Grimaldi: additional restrictions on 23 November and from 2 to 4 December

Rue Grimaldi will be affected by several separate operations between November and December.

On 23 November, from 9 am to 4 pm, traffic will be restricted to a single lane between house numbers 35 and 37.

During the night of 2–3 December, from 8 pm to 6 am, traffic will also be reduced to one lane near Sainte-Dévote.

From 9 pm to 6 am, the section between the expressway tunnel and the Place d’Armes roundabout will be closed.

During the night of 3–4 December, from 8 pm to 11 pm, traffic will remain open between Sainte-Dévote and the expressway tunnel.

Boulevard de Suisse: closure overnight on 3–4 December

During the night of 3–4 December, from 11 pm to 2 am, Boulevard de Suisse will be closed to traffic.

At the same time, traffic on Avenue de Roqueville will be restricted to a single lane.

Avenue Hector Otto: traffic control and closure towards Moyenne Corniche

Avenue Hector Otto will also be affected by the roadworks.

On 24 November, from 9 am to 4 pm, traffic near the L’Escorial building, at number 31, will be managed manually.

Further works are scheduled during the night of 3–4 December, from 2 am to 6 am. Traffic will be prohibited between the junction with Rue Honoré Labande and the Moyenne Corniche.

Between the Jardin Exotique roundabout and Rue Honoré Labande, traffic will instead be managed manually.

Monaco roadworks until 4 December: advice for drivers and residents

The road resurfacing programme is scheduled to finish on 4 December 2026. For approximately one month, anyone travelling by car through the Principality will need to pay particular attention to overnight closures, diversions and temporary restrictions affecting car parks.

The Department of Urban Development advises residents and motorists to follow the temporary signs installed in the affected areas and the notices displayed near the construction sites.

Before travelling, especially during the evening and overnight hours, it is advisable to check the latest traffic and public transport updates and plan journeys accordingly, avoiding roadwork areas wherever possible.