Broadband dielectric relaxation spectroscopy represents one of the most versatile methods deployed to assess both glass transition and dielectric properties of polymeric materials with a wide dynamic range of frequencies [1, 2]. Hybridization by aid of either natural or synthetic reinforcements, irrespective of their inherent material characteristics (e.g. shape, length, orientation, etc.) and compatibility issues assured through various techniques seem to capture researchers’ attention continuously, as can be traced by a focused survey on particular literature [3,4]. The herein study aims to present the relaxation curves from dielectric measurements carried by aid of a high precision dielectric analyzer (Alpha analyzer, Novocontrol Technologies) in combination with a control temperature system in the temperature range 25° - 180° C, in steps of 5 K/min and consecutive isothermal frequency sweeps (101 – 107 Hz) on the epoxy based composite specimens under debate. The hybrid polymer based composites were manufactured as asymmetric and symmetric architectures of synthetic fibre reinforced layers (e.g. carbon, basalt) in combination with natural reinforcements (e.g. flax fibres) to deliver the polymer based laminates. Data processing will emphasise the influence of the stacking sequence and individual constitutive materials upon the dynamic electrical properties (e.g. loss modulus, permittivity) as well as the heterogeneity of the combinations through Cole-Cole plots.