  We analyze the phenomenology of the Higgs sector in a 5D model compactified
on an $S_1/Z_2$ orbifold with a compactification scale $M_C \sim {\mathcal
O}(TeV)$ where supersymmetry breaking is localized on a brane at one of the
fixed points. We show that the conventional MSSM Higgs boson mass bounds in 4D
can be violated when we allow the gauge sector, Higgs and third family
multiplets to live in the fifth extra dimension.
