Cell towers in Palaiseau (Essonne)

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

2 underground or tunnel sites and 19 buildings, 6 pylons and 1 water tower carry the commune's antennas.

Place names on the register include Les Marnières, RTE de Saclay, boulevard Thomas Gobert, 3 Avenue Charles de Gaulle, 51 rue Charles Peguy and 8 à 14 rue de la Croix Martre.

21 systems were switched on in the past 12 months. ANFR has approved 3 new sites that are not live yet, plus additions on 10 existing masts. New: Bouygues Telecom (3G, 4G and 5G, including 5G at 3.5 GHz) at 8 rue D'Auvergne, Free Mobile (3G, 4G and 5G, including 5G at 3.5 GHz) at Route de Saclay and Free Mobile (4G and 5G, including 5G at 3.5 GHz) at Marguerite_perey_l18. 25 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

19 of the 28 masts are rooftop-mounted. The tallest support is 44 m at Les Marnières (pylon). The median height of measured supports is 24 m.

2014 was the busiest year, with 53 new systems, most of them 4G. Bouygues Telecom switched on the first 5G here in November 2020; Free Mobile followed in December 2020, SFR followed in March 2021. The oldest transmitter still listed here goes back to 1995.

Of the 28 masts in the commune, 3 masts carry all four networks.

3.5 GHz 5G is declared by Bouygues Telecom on 12 of its 16 masts, Free Mobile on 10 of its 12 masts, SFR on 9 of its 13 masts and Orange on all 8 masts.

2.6 km to the east, neighbouring Massy has 45 masts, more than here.

By mast count, Palaiseau is 5th of the 60 Essonne towns that have five or more.

At 12 km² with 37,471 residents, the commune is dense enough that most antennas sit on rooftops rather than pylons. It is part of the CA Communauté Paris-Saclay intercommunal grouping.

Source: operator declarations to ANFR, as of October 2026. Projects that are only approved are left out of the totals.