Cell towers in Boissy-Saint-Leger

1 church or religious building and 7 buildings, 3 pylons and 1 mast carry the commune's antennas.

Declared locations include avenue du Marechal de Lattre de Tassigny, Stade Maurice Préault, Ancien Marché Couvert, 3 Pl. de la Pinède, 2 Place de la Peupleraie and 2 Place de la Sablière.

ANFR has approved 4 new sites that are not live yet, plus additions on 3 existing masts. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) at Proche Allée Royale, Free Mobile (4G and 5G, including 5G at 3.5 GHz) at Domaine de Grosbois and Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 7 Place des Erables. 6 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

2021 was the busiest year, with 18 new systems, most of them 5G. Free Mobile switched on the first 5G here in December 2020; SFR followed in March 2021, Orange followed in March 2021. The oldest transmitter still listed here goes back to 1998.

The highest support stands 49 m at 2 Place de la Sablière (building). The median height of measured supports is 27 m.

3.5 GHz 5G is declared by Free Mobile on all 4 masts, Bouygues Telecom on 3 of its 6 masts, SFR on 3 of its 5 masts and Orange on 2 of its 3 masts. 69% of the town's masts carry 5G, fewer than across Val-de-Marne towns with five or more masts (84%).

2 km to the west, neighbouring Limeil-Brevannes has 21 masts, more than here.

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