or jean-philippe.michel@universiteparis-saclay.fr A locally organized monolayer film strongly attached to a gold surface is obtained by transfer of a Langmuir Blodgett (LB) film of octadecylamine (ODA) or alcohol (ODOH) onto an Au surface and simultaneous oxidative electrografting of this film still in contact with the aqueous subphase. As opposed to LB films, these films resist ultrasonication and unlike electrografted films, they are organized monolayers by construction. They are characterized by AFM (Atomic Force Microscopy), water contact angle, ellipsometry, XPS (X-ray photoelectron spectroscopy) IRRAS (Infrared Reflection Absorption Spectroscopy) and GIXD (Grazing Incidence X-ray Diffraction).