Room Renovation Scope Creep and Contingency Review

Review a renovation for scope creep by costing each added extra against the original plan, budget, contingency and deadline.

Added October 15, 2026. Written with AI assistance and checked for clarity and placeholders; not reviewed by a lawyer, accountant, clinician or other professional. How these prompts are made

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[VERIFY] is an editorial flag, not a blank to fill. Wherever the prompt shows [VERIFY], check that item against a reliable source before you use it (what [VERIFY] means).

Review my renovation scope. Original plan and extras added since: [SCOPE_LIST]. Budget and contingency held: [BUDGET_AND_CONTINGENCY]. Deadline and how flexible it is: [DEADLINE].

Compare the extras with the original, add up the cost and time of each, and show the effect on the total and the contingency. Check that the contingency covers the typical range for unknowns in older buildings (a common planning figure is 10 to 20 percent, which I should confirm with the people I hire [VERIFY]). Identify extras that can wait.

Return a table with Item, Cost, Time, Essential or optional and Decision, the contingency left after approved extras, and a change-control rule: no extra without a written cost and time.

Add a worked budget check with invented numbers: original budget 12,000 with 10 percent contingency of 1,200; added extras since planning: new lighting 650, upgraded tiles 900, extra socket 300; total extras 1,850. Contingency left if all approved = 1,200 minus 1,850 = minus 650, meaning the contingency is already exhausted and the budget exceeded by 650. Decide: drop the tile upgrade (900) and keep the other two, which costs 950 and leaves 250 of contingency. Calculate the percentage: 250 divided by 12,000 is 2.1 percent, which is thin for an older building. Add a rule that any extra needs a written cost, time impact and a source of money, and that the decision is recorded.

Add a short change log template with date, request, cost, time impact, who approved and where the money comes from. Add a weekly 15-minute budget review during the works and a rule to pause when the contingency falls below half. Check that written agreements reflect each change before work begins [VERIFY]. Record the final costs against the budget to improve the next plan, and note what drove each overrun.

Close with a final reconciliation after the works: planned against actual cost and time for every change, and one lesson for the next project.

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Invented budget 12,000 with 10 percent contingency = 1,200. Extras: lighting 650, upgraded tiles 900, extra socket 300 = 1,850.
Contingency after extras = 1,200 - 1,850 = minus 650: already exhausted.
Decision: drop the tile upgrade (900); extras become 950; contingency left = 250, which is 250 / 12,000 = 2.1 percent, thin for an older building.
Rule: no extra without a written cost, time impact and source of funds.
Final check: written confirmation of the change list from the contractor before work restarts.

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