  The Giant Radio Array for Neutrino Detection (GRAND) is a planned array of
~200 000 radio antennas deployed over ~200 000 km2 in a mountainous site. It
aims primarly at detecting high-energy neutrinos via the observation of
extensive air showers induced by the decay in the atmosphere of taus produced
by the interaction of cosmic neutrinos under the Earth surface. GRAND aims at
reaching a neutrino sensitivity of 5.10$^{11}$ E$^{-2}$
GeV$^{-1}$cm$^{-2}$s$^{-1}$sr$^{-1}$ above 3.10$^{16}$ eV. This ensures the
detection of cosmogenic neutrinos in the most pessimistic source models, and
~50 events per year are expected for the standard models. The instrument will
also detect UHECRs and possibly FRBs. Here we show how our preliminary design
should enable us to reach our sensitivity goals, and discuss the steps to be
taken to achieve GRAND.
