The density read more of relic neutrinos is expected to be enhanced due to clustering in our local neighbourhood at Earth.We introduce a novel analytical technique to calculate the neutrino overdensity, based on kinetic field theory.Kinetic field theory is a particle-based theory for cosmic structure formation and in this work we apply it for the first time to apunisw2 massive neutrinos.The gravitational interaction is expanded in a perturbation series and we take into account the first-order contribution to the local density of relic neutrinos.For neutrino masses that are consistent with cosmological neutrino mass bounds, our results are in excellent agreement with state-of-the-art calculations.