The timeline for ADU construction typically includes design planning, architectural drawings, engineering, permit approvals, and the construction phase itself. Detached ADUs often require more time because they involve new foundations, utility installations, framing, roofing, and complete interior build-outs. Garage conversions or attached ADUs may move faster depending on existing conditions. In West Hills, permit review and inspection scheduling can also impact the project timeline. Construction phases usually include demolition or site preparation, foundation work, framing, plumbing, electrical installation, insulation, drywall, flooring, cabinetry, and final finishes. Careful planning and organized project management help reduce delays and maintain a smoother construction process from start to finish.
