Increasing the resolution of regional climate models up to convection-permitting scales has improved the representation of land cover, precipitation, and extreme events. In this work, we use the benefits of the high resolution and apply them to model irrigation effects and feedbacks on the local and regional climate, focusing on the interaction of irrigation with soil, land surface, atmosphere, and vegetation processes. We employ the regional climate model REMO2020 interactively coupled to its vegetation module iMOVE and incorporate our newly developed irrigation parameterization. We conduct two simulations sets with and without the irrigation parameterization. In the first set, we employ the hydrostatic model version at 0.11{degree sign} horizontal resolution for Southwestern Europe. For the second set, we repeat the experiment employing the non-hydrostatic model version at convection-permitting resolution of 0.0275{degree sign} for Northern Italy. Our results show more distinct and localized irrigation effects for the simulations at convection-permitting resolution with enhanced near-surface cooling of up to -2 K compared to the simulations at 0.11{degree sign}. In the boundary layer, irrigation effects are highly influenced by atmospheric stability, leading to more pronounced irrigation effects for more stable conditions. Convection-permitting simulations better capture the distribution and diurnal cycle of precipitation, improving the timing of peak precipitation and resolving high values compared to simulations at 0.11{degree sign}. However, no clear irrigation effect on precipitation could be found at convection-permitting scale. At 0.11{degree sign} horizontal resolution, irrigation leads to an increased precipitation intensity, indicating a sensitivity of the convection parameterization to soil moisture.