Cell towers in Yerres (Essonne)

Most of the town's 13 masts are buildings (11); 1 water tower make up the rest of the mix.

Declared locations include rue Royale, 55 rue Royale, 18 Rue du Docteur Schweitzer, 95 Rue Raymond Poincare, Les Godeaux and 84 Rue Pierre Brossolette.

11 of the 13 masts are rooftop-mounted. The tallest support is 38 m at rue Royale (water tower). The median is 20 m, slightly below the Essonne median of 26 m.

2016 was the busiest year, with 20 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 August 2021. The oldest transmitter still listed here goes back to 1995.

15 systems were switched on in the past 12 months. Approved additions not yet in service are pending on 4 existing masts, for example Bouygues Telecom (5G, including 5G at 3.5 GHz) at rue Royale, Free Mobile (5G 700 MHz) at 55 rue Royale and Free Mobile (5G 700 MHz) at 95 Rue Raymond Poincare. 6 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

Of the 13 masts in the commune, Free Mobile is the only carrier on 4 masts.

3.5 GHz 5G is declared by Free Mobile on 5 of its 7 masts, Orange on all 4 masts, Bouygues Telecom on 3 of its 4 masts and SFR on 1 of its 5 masts.

2.6 km to the south, neighbouring Brunoy has a church or religious building among its supports.

At 10 km² with 27,906 residents, the commune is dense enough that most antennas sit on rooftops rather than pylons. It is part of the CA Val d'Yerres Val de Seine intercommunal grouping.

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