A discussion is provided of the advantages of integration of 3D imaging techniques with installed workflow in order to reduce costs in a feasible way. The advantages of the use of multi-sensor data in cultural-heritage and existing-conditions documentation permit architects to put design proposals in the context of precise and visually compelling content. Three-dimensional digitization requires the use and control of map and survey data, orthographic computer-aided design (CAD) drawings, photos, 3D non-contact imaging data (including laser scanning and photogrammetry), and 3D models. At the Chapel of the Convent of Our Lady of the Sacred Heart in Canada, the techniques were considered for a project that combined content-based and applied research aims. The primary intent was development of a 3D imaging and modeling protocol called CIMSp. CIMSp includes multi-sensor technologies with modeling and rendering techniques through an interpolation process in a mixed collection of existing photo, physical, and 2D documentation. In the environment, CIMSp should define an encompassing best practices process that resolves procedural and technical hurdles in situations where integration of 3-D on-contact imaging and use-dependent 3-D modeling of non-extant (proposed or lost) architectural conditions is desired. Topics covered include sensor and modeling technology, imaging and modeling protocol, layered approach, preferred sensor, and fusion of data sets, which resulted in an accurate, visually advanced model that will be used for design and reconstruction, in addition to cultural heritage and museological presentation.