Societe de la Tour Eiffel, a French real estate investment company has pre-let its 6,800 m[sup]2[/sup] office development CityZen at Boulevard National in Rueil Malmaison, near Paris, almost a year prior to the planned delivery in mid 2008. The future tenant is Soletanche Bachy, subsidiary of the Vinci Group, and the rent is for a 6 to 9 year closed lease term.