How to track a real estate development budget

To track a real estate development budget, keep five numbers current for every line item: the original budget, approved changes, committed costs, actuals to date, and the forecast at completion. Variance is the gap between the current budget and that forecast at completion, refreshed on a monthly cadence. That gap is the number that protects you.

What are the five numbers, and why these?

The original budget is the baseline from the pro forma, frozen at the preconstruction phase. It gets frozen so drift is measurable. Approved changes are change orders and scope decisions; add them to the original and you have the current budget. Committed costs are signed contracts and purchase orders, meaning money that is spoken for whether or not an invoice exists yet. Actuals to date are what has actually been paid or accrued, pulled from the accounting books. The forecast at completion is the honest current estimate of the finished cost: commitments plus estimates for everything not yet bought. Together, the five answer the only budget question that matters mid-project, which is where this thing will land and how you know. They are tracked per line, inside the cost buckets the budget is organized into.

Where does budget tracking usually go wrong?

The most common failure is comparing the wrong pair of numbers. Original budget versus actuals-to-date looks fine right up until the committed-but-uninvoiced costs arrive; the honest comparison is forecast-at-completion versus current budget. Stale actuals are the second problem. The real numbers live in the contractor's construction software and the firm's accounting system, and the owner's tracking spreadsheet gets reconciled to them monthly at best, quarterly in practice. Then there is contingency amnesia: drawing down contingency without logging the draws, so the buffer is gone before anyone actually decided to spend it. All of these failures share a signature. The drift was knowable from numbers sitting in someone's system, and nobody was looking at the roll-up.

What does a good owner-side cadence look like?

Monthly, for each active project: refresh actuals from the books, refresh commitments from executed contracts, re-forecast any line with meaningful movement, and log the variance with a reason. Across the portfolio, the pipeline view shows which projects' budget health moved, so the deep dive goes where the drift is. There is nothing sophisticated about this cadence. What it needs is the numbers in one place on a schedule, and that is precisely the discipline that breaks when it depends on hand-assembled spreadsheets. This owner-side budget roll-up is a core part of what PlotSlate, part of Composed Studio, is being built for. PlotSlate is currently in development and not yet generally available.