The performance of Timber Concrete Composite(s) (TCC) is primarily governed by the type of connection used in connecting the constituent members together. This paper investigates the performance of various commonly used connections in a TCC. The main goal of this research is to identify which type of connection provides the optimal structural performance while also identifying the effects parameters such as inclination angle and penetration/notch depth have on the performance of connections. Shear tests on 40 hardwood CLT Concrete Composite specimens comprising of 5 connection configurations, utilising notched and screw connections were undertaken in accordance to BS EN 26891. The results showed that notched connections provided the most satisfactory structural performance in relation to load carrying capacity and stiffness, with the depth of the notch having a significant impact on the behaviour of the composite under load. In terms of timber screw connections, screws inclined at 45° yielded the best structural performance in relation to load carrying capacity and stiffness.