Evergreen renovated the existing 3500 s.f. space and built the new relation vault addition using a modular vault shielding system. Renovations included a complete demolition of the existing space, new exam rooms, admin areas, ofﬁces and CT room. The vault addition included site work, mat slab foundation system, vault rooﬁng, cladding, ﬁnishes, electrical services and landscaping. The vault houses a Varian radiotherapy machine.