Cell towers in Saint-Cloud (Hauts-de-Seine)

4 supports are declared underground, in a gallery or a tunnel. For questions about exposure, see the exposure guide.

4 bridges or viaducts and 21 buildings, 4 underground or tunnel sites and 3 pylons carry the commune's antennas.

Antennas are listed at Parc de Montretout, 3 Rue Pasteur, 1 rue du Camp Canadien, 9 avenue de la Fouilleuse, 1-3 avenue des Villes Jumelees and Les Bureaux de la Colline.

Over the past 12 months ANFR recorded 41 new systems here. ANFR has approved 2 new sites that are not live yet, plus additions on 12 existing masts. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 2 Rue Ernest Tissot and Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 77 Rue Sevin Vincent. 21 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

2 masts belong to the commune itself and 1 to Totem; the rest sit mainly on private buildings.

Systems from 1995 are still on the register. Bouygues Telecom switched on the first 5G here in November 2020; Free Mobile followed in December 2020, SFR followed in December 2020. 2016 was the busiest year, with 63 new systems, most of them 4G.

Most antennas sit on rooftops (21 of 33), so heights stay modest; the tallest support is 44 m at Les Bureaux de la Colline.

2 masts carry all four networks.

Among the 36 Hauts-de-Seine towns with at least five masts, Saint-Cloud ranks 13th by mast count. With 33 masts for 29,855 residents, or 11 per 10,000, it has more masts per inhabitant than the median for those towns (6).

On 3.5 GHz, the fastest 5G band: SFR on 11 of its 17 masts, Bouygues Telecom on 10 of its 16 masts, Free Mobile on 10 of its 16 masts and Orange on 8 of its 14 masts.

Garches lies 1.6 km to the west and has only 10 masts.

At 8 km² with 29,855 residents, the commune is dense enough that most antennas sit on rooftops rather than pylons. It is part of the Métropole du Grand Paris intercommunal grouping.

Figures above cover installations declared to ANFR as in service or technically operational, as of October 2026; approved projects are not counted.