Square 1 (c. 3.5×4.5 m) was opened adjacent to the eastern wall of the western wing, near the wing’s southeastern corner (Figs. 3–5). Two terrace walls (W100, W107), built along a north–south axis, were discovered; W100 was founded on W107. The southern part of W100 was dismantled during the excavation. Both walls were built of roughly hewn fieldstones; the stones of W107 were larger than those of W100. A layer of soil debris (L104) containing many small stones and pottery fragments was discovered west of the walls. To their east was a fill comprising layers of gravel and quarry debris, and of very hard plaster (L105, L106, L108, L109; Figs. 6, 7). Layers 108 and 109 abutted the eastern face of W107, whereas Layer 105 and the upper part of Layer 106 were cut by a robber trench that also damaged the upper part of W107. Another plaster layer that was cut during infrastructure work prior to the excavation could be discerned in the eastern balk of the square, above Layer 105. Wall 100 was built inside the robber trench. It seems that W107 and the layers of fill to its east were part of the foundation of an architectural unit that was built into Debris Layer 104.
The pottery from Debris Layer 104 was mixed and included numerous pottery fragments from the late Iron Age (eighth–seventh centuries BCE) and from the Early Roman period (first century BCE – first century CE), along with finds from the modern era. A clay figurine from the Iron Age 2 was found beneath the stones (L103) in the southern part of W100. The fill layers to the east of the walls included pottery fragments from the early Roman period as well as several sherds from the Iron Age 2.
In Square 2 (c. 1.7×2.5 m), to the south of Square 1, a small, rectangular installation (minimum length 1.5 m, width 1.8 m, depth unknown; Figs. 3, 4, 8) was built into a pit. Only its western part was uncovered, and its interior was not excavated. The installation was measured after its ceiling was breached. In the middle of the installation was an arch built of flat fieldstones that supported the half-domed ceiling of the western part of the pit (Fig. 9). The eastern half of the pit, which was not excavated, was presumably covered with in a similar manner. Lying above the arch was a long, roughly hewn stone. A similar stone was found in the collapsed debris inside the pit. These were most probably the stones that bordered the upper opening of the installation. No dateable finds were discovered in a trial probe opened along the installation’s foundation trench along its southern wall (L111).
The construction method of the foundation layers east of W107 in Square 1 does not resemble any known ancient method. Despite the ceramic finds from this stratum, it should probably be dated to the first phase of the school’s construction in the mid-nineteenth century. The location and course of W107 corresponds to those of one of the garden walls that was erected prior to the western wing (see the plan in Conder 1875a). This was probably an old terrace of the garden that was destroyed in the wake of the construction of the western wing. Wall 100, of a later date, should probably be associated with the construction of the western wing.
The installation discovered in Square 2 was probably also related to the old wing of the school. It possibly served as a cesspit connected to a sewer or drainage system. During the infrastructure work that preceded the excavation, a section of a glazed terra-cotta pipe from the Ottoman period was found east of the installation, which might reinforce this conclusion. The excavation findings shed light on the building methods employed in constructing the original school building – the first building to have been erected outside the Old City walls.