Which term describes alterations made to accommodate a firm’s needs including construction of walls and other treatments?

The term that accurately describes alterations made to accommodate a firm's needs, such as the construction of walls and installation of other treatments, is "Build-Out." A build-out typically refers to the customization of a commercial space to meet the specific requirements of a tenant. This can include adding or removing walls, installing specific lighting fixtures, or adjusting the layout to better suit the workflow of the firm.

By focusing on the specific modifications made to a space, "Build-Out" encompasses both the physical construction activities and the overall process of tailoring the environment for operational efficiency and aesthetic preferences. This term highlights the structural changes required to create a practical and functional workspace that aligns with the firm's objectives.

While "Tenant Improvements" may also refer to modifications made to a leased space, it is a broader term that can include both build-outs and general updates made for the tenant's benefit. "Space Reconfiguration" focuses more on rearranging existing elements rather than extensive construction. "Office Remodeling," while applicable, does not specifically capture the context of purposeful changes for a tenant's specific needs in a commercial leasing scenario. Thus, "Build-Out" is the most precise term for the alterations described.