On the atomistic scale of modelling, density functional theory (DFT) and its timedependent variant (TD-DFT) have become the most routinely used quantum mechanical (QM) tools for calculating the ground and excited state electronic structure of TADF molecules, due to their low computational cost compared to the more accurate but much more expensive wave-function based methods. The Tamm-Danncoff approximation (TDA) and range-separated hybrid functionals are frequently employed to improve the accuracy of the calculated excited state energies. However, most (TD-)DFT studies on emitters in the literature are performed in vacuum or with a polarisable continuum model (PCM) representing the solvent environment. Thus, the effects of the host molecules on the emitters are rarely accounted for explicitly, despite solvation effects playing an important role in the TADF process. Indeed, it is well documented that high-performing TADF molecules require close interplay between charge transfer (CT) and locally excited (LE) states to facilitate rapid triplet harvesting. A CT state usually possesses an excited state dipole moment significantly larger than its electronic ground state, while a LE state does not, and therefore the energy gap between the CT and LE states will be heavily influenced by solvation effects.