Two alignment options are under consideration for the extension from Porte d'Asnières, which would serve Porte de Champerret and Porte de Villiers and an interchange with RER lines C and E and metro Line 1 at Porte Maillot, before terminating at an interchange with metro Line 2 and RER Line C at Porte Dauphine.

As well as bringing Champerret-Berthier and Gouvion Saint-Cyr onto the tram network, the extension would serve the Palais des Congrès and Paris Dauphine University.

Construction began last year on the adjoining 4.3km stretch of Line T3b from Porte de la Chapelle to Porte d'Asnières. The eight-station extension is due to open in December 2017.

T3b map