<p>This article presents the multidisciplinary methodology employed in the restoration of a sixteenth century renaissance building with gothic vaults. The use of precise instrumental techniques like TLS (Terrestrial Laser Scanning) or photogrammetry are proposed to obtain the geometry of the building before, during and after the intervention. Obtaining the point clouds of the Refectory of the Santo Domingo de Orihuela School in their different restoration stages allows monitoring the vaults, studying their structural behaviour and deformations with the comparison of their original state, unloaded state and the new loading after the execution works.</p><p>A work methodology that is proposed in this article could be applied to any restoration work of patrimonial architecture. The original deformations have been verified and quantified and the final state of the intervention has been documented with respect to the original state.</p>