A framework is analyzed where the Standard Model physics emerges as a low-energy effective field theory on a (7+1)D spacetime and Minkowski space is a monolayer composed of unresolvable tetrahedral unit cells at the Planck scale. We demonstrate that the SSB of the isospin cells into a chiral all-out configuration naturally generates a local O(4) isospin symmetry which governs the dynamics of the Higgs doublet and the mass hierarchy of the electroweak sector. By identifying the axial generators of the broken symmetry with massive vector bosons, we recover the electroweak phenomenology. The inherent handedness of the isospin vacuum provides a 7D origin for parity violation, establishing a direct link between the topology of the unresolvable spatial lattice and the observed chiral nature of weak interactions. The role of the O(4) symmetry of the Higgs potential is elucidated, and how the SM custodial symmetry is associated to neutrino masses, the latter being obtained from isospin-orbit coupling between isospins and the Planck lattice.