A new phase of urban development is now underway along Monaco’s iconic Avenue Princesse Grace, as part of a wider effort to enhance the neighbourhood following the completion of the Testimonio II project.

The latest stage of construction began on 13th October and will continue through to 19th December 2025, affecting the section between the Sea Club and Monte-Carlo Bay. Work will then resume in phases throughout 2026. During this period, traffic is reduced to a single alternating lane. Disruptions are expected, and drivers are encouraged to use an alternative route via Boulevard du Larvotto.

Redesigning for a better everyday

The project focuses on improving the liveability of the neighbourhood by promoting soft mobility and sustainable urban solutions. Wider pavements and extended cycle lanes are being introduced to encourage walking and cycling. New electric charging stations for buses and taxis will be installed, and additional green spaces—along with a landscaped wall—will bring nature back into the area.

To declutter public space, 45 two-wheeler parking spots will be relocated to the nearby Testimonio car park. Meanwhile, a new widened roadway near the Sea Club will enable buses to turn around more efficiently, maintaining accessible stops for users even during future works along the avenue.

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