11.4 Reviewing Project Budget & Schedule Feasibility Against Scope
Key Takeaways
- The cost of the work is only 65–80% of a total project budget, and testing program area against the total budget overstates affordable area by 20–35%.
- Escalation must be carried from the estimate date to the midpoint of construction, not merely to the bid date.
- Entitlement hearing calendars, plan review duration, and long-lead equipment are the three schedule risks that cannot be compressed.
- When scope and budget are fixed the schedule must extend; when scope and schedule are fixed the budget must rise; when budget and schedule are fixed scope must shrink.
- Under AIA B101 the owner sets the budget for the cost of the work, and the architect must notify the owner when the estimate indicates it will be exceeded.
Objective 4.5 asks the architect to review and assess the feasibility of the project budget and schedule to meet the project scope. Note the verbs — the objective was narrowed to review and assess what others prepare, rather than to author the budget and schedule. The architect's job is to tell the owner, early, whether the three sides of the triangle can coexist.
The Project Budget Is Not the Construction Cost
Owners routinely present a single number and call it the budget. The architect's first act is to decompose it.
| Component | Typical share of total project cost | Notes |
|---|---|---|
| Cost of the work (construction) | 65–80% | What the contractor is paid, including the contractor's overhead and profit |
| Land / acquisition | Varies widely | Excluded from the cost of the work |
| Professional fees | 6–15% of construction | Architect, engineers, specialty consultants, surveys, testing |
| FF&E and equipment | 5–15% | Often owner-purchased and excluded from the construction contract |
| Permits, fees, impact fees, utility connections | 1–5% | Impact fees can be very large in some jurisdictions |
| Owner contingency | 5–10% of construction | Owner's reserve for scope change |
| Financing, legal, insurance, moving | Varies | Soft costs the owner often forgets |
A stated "$12 million budget" may leave $8 million for construction once land, fees, FF&E, and contingency are removed. Testing the program against $12 million rather than $8 million produces a design that cannot be built — and the architect, not the owner, is usually blamed.
Testing Scope Against Budget
The programming-stage test is deliberately coarse and fast:
- Establish program gross area (net area divided by the assumed efficiency ratio for the building type).
- Apply a cost per square foot drawn from comparable recent projects of the same type, in the same market, at the same quality level.
- Adjust for location, time (escalation), site conditions, and quality.
- Add design and construction contingency appropriate to the level of definition — the earlier the estimate, the larger the contingency.
- Compare to the available cost of the work.
If the result exceeds the budget, the architect reports the gap with the three levers that can close it — reduce area, reduce quality, or increase budget — plus schedule, which affects escalation. Reporting the gap is the service; choosing which lever to pull is the owner's decision.
Escalation
Construction cost escalates between the estimate date and the midpoint of construction. On a project that bids 18 months after programming and builds for 24 months, the escalation period runs roughly 30 months from the estimate. At even 4% annually that is a 10% increase before a single design decision is made. An estimate presented without a stated escalation basis and a stated estimate date is not usable.
Testing Scope Against Schedule
A schedule feasibility review assembles the durations no one can compress:
| Phase | Typical duration driver |
|---|---|
| Programming and pre-design | Owner decision-making and stakeholder process |
| Entitlement | Published hearing calendars — fixed, not negotiable |
| Design (SD through CD) | Scope, complexity, consultant count, owner review cycles |
| Permit / plan review | Jurisdiction workload; not under any party's control |
| Bidding or GMP buyout | Market conditions and bidder interest |
| Construction | Building type, long-lead equipment, weather, labor availability |
| Commissioning, closeout, occupancy | Owner move-in, training, and certificate of occupancy |
Three items dominate real schedule risk: entitlement hearings, plan review duration, and long-lead equipment such as switchgear, generators, elevators, chillers, and custom curtain wall. None of them speeds up because a project is behind.
Reconciling the Triangle
Scope, budget, and schedule are interdependent, and the architect's assessment says which pair the owner may have:
| Owner fixes | Consequence |
|---|---|
| Scope and budget | Schedule must extend, or escalation will break the budget |
| Scope and schedule | Budget must rise, through overtime, premium procurement, and fast-track rework |
| Budget and schedule | Scope must be reduced, in area or in quality |
When none of the three will move, the honest assessment is that the project as defined is not feasible — and delivering that assessment at programming is far cheaper for everyone than delivering it after construction documents.
Under AIA B101, the owner establishes the budget for the cost of the work and the architect's obligation is to design within it and to notify the owner when the estimate indicates it will be exceeded. Silence while a design drifts over budget is the failure this objective is written to prevent.
Exam Tip: On any feasibility item, first separate the total project budget from the cost of the work. The most common wrong answer tests program area against the total project budget, which produces a number 20–35% too high and an answer that looks generous and is wrong.
An owner states a total project budget of $12,000,000 for a new community center. Land is already owned. Soft costs, FF&E, permits, and owner contingency are expected to consume 30% of the total. Against what figure should the architect test the program area?
A programming-stage estimate is prepared in September 2026 for a project that will bid 18 months later and build for 24 months. What must the estimate include to be usable?
At the end of programming, the architect determines that the owner’s program cannot be built for the available cost of the work within the required schedule. What is the architect’s correct action?