We investigated the electronic of structure and hydride conduction dynamics of barium titanium oxyhydride using combined static and MAS solid-state NMR, DFT calculations and magnetic measurements. The dependence of the electronic properties on the oxyhydride synthesis route and hydride concentration was evaluated in three oxyhydrides. The determined quadrupolar parameters and Euler angles relating the shift and quadrupolar tensors suggest hydride ions with indistinguishable local coordination geometries for the three samples. The isotropic shift and shift anisotropy in the oxyhydride increase in magnitude with higher hydrogen concentrations, which strongly suggest that electrons form delocalized bandstates. This is further supported by the temperature dependence of the NMR parameters, which follow the Korringa relation typical for metallic systems. Together these data indicate that barium titanium oxyhydride adopts a bandstate electronic structure rather than a polaronic state and would exhibit metallic electronic conductivity, which is in agreement with previous reports. Moreover, by computing the EFG tensors using DFT we resolve the hydride occupancy in the bandstate, which implies that the single occupied bandstate is more likely to occur in the studied samples. Finally, we demonstrate that the hydride ion dynamics occur on a significantly slower timescale than reported before or else occur exclusively by hopping to nextnearest oxygen vacancies. The hydride hopping mechanism between next-nearest oxygen vacancies is shown in (c). Below the models we have the overlapped spectra obtained experimentally (in black) and by simulation of the averaged quadrupolar interaction (in red) using quadrupolar parameters from WIEN2k.