This paper presents the results of geophysical subsurface investigations conducted along Boys’ Hostel 2 in Veritas University campus, Abuja, Nigeria. Current study aimed to determine the soil and rock properties which influences building collapse and groundwater level. The subsurface of investigated area was delineated using Electrical Resistivity Tomography (ERT) method via Schlumberger and Wenner arrays. Furthermore, 2D Earth Imager and Winresist software were also used in developing the 2D geo-section, ERT imaging, lithology and resistivity curves. Results from the subsurface profile map correlated well with those of resistivity profile curves, HP curves and ERT images. Subsurface profile map reveals soft rock zones of about 6m thickness within the subsurface. This 6m thickness is corroborated by the value of thickness from the ERT image. The range of resistivity values for this region is further unraveled as a low resistivity zone with resistivity range of about 400?m to 650?m. The presence of fractures extends to a depth of 18m and this fracture lays 11m to 17m eastwards from the starting positions. Furthermore, the resistivity profile curve with its associated lithology clearly showed the presence of Lateritic materials with 3.9m thickness and these outcomes were used to map potential regions within the Boys’ hostel for structural failures, by providing coordinates of these features, their depth, nature, lithology of their surroundings.

Keywords: Geo-Electric, Subsurface, electrical tomography, schlumberger, wener.