Brief the decisions before pricing
Identify the seated view, glare-control need, sheltered seat, material choice or mature canopy the design must support. Record the existing condition and what changes. Do not assume a universal budget tier or that spending at a particular level satisfies a certification feature.
Build a scope-led budget
- Daylight and views
- Price the actual analysis, glazing, shading and furniture changes; distinguish included base-building work.
- Container planting
- Schedule quantities, selected sizes, liners, delivery, installation and access.
- Living walls and water systems
- Measure planted wall area; include supports, waterproofing, plumbing, lighting, controls and commissioning.
- Materials and enclosure
- Price the difference between the selected assembly and the already-budgeted alternative.
- Handover
- Record training, as-built information, service responsibility, annual care, utilities and replacement exclusions.
Hypothetical example, not a market allowance
Assume one complete living-wall proposal of $24,000 and annual care of $2,400. Over five years with no escalation or discounting, the illustrative total is $36,000. These teaching inputs are not a documented price. If separately supplied electrical work remains unpriced, the project total stays incomplete. Do not translate this single example into a percentage of a building’s construction budget.
Open the living-wall bid-comparison guide and editable workbook. Record included, separately priced, excluded and unknown scope before comparing complete totals. An unknown owner cost is not zero and must prevent a complete ranking.
Coordinate phases without invented savings
Review supports, water containment, power and service access before the relevant drawings are finalized. If work is deferred, agree which enabling works belong in the current scope and who will test them later. Price any retrofit or disruption directly; no generic early-integration saving is asserted.
Keep the business case separate
Cost comparisons do not establish financial benefits. Use actual installation and annual operating costs, then test explicit benefit assumptions separately in the ROI scenario calculator. Salary-based estimated economic value is not automatically a cash saving or a guaranteed payback.