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Project budget and cost plan

Build a project budget by element and keep construction cost, fees, risk allowances and tax assumptions visible.

by Jack Butler-Kettle · About 3 min readShare

How to use it

Replace the fictional allowances with quantities, quotations and local project information. Use one project scenario at a time and confirm VAT treatment separately.

Project budget and cost plan

Replace the fictional allowances with quantities, quotations and local project information. Use one project scenario at a time and confirm VAT treatment separately.

Free blank template for your own project. The completed example is shown below. No email address required.

View the completed example

Completed fictional example

Westhaven refurbishment · 14 October 2026 · Version 1.0

Extension budget

Scroll across if needed to read the whole record. A dash means no value has been entered.

Extension budget: completed fictional example
ElementQuantityUnitRate (£)Allowance (£)Basis / exclusion
Groundworks1allowance£18,000.00£18,000.00Normal foundations assumed; ground risk separate
Structure and envelope40m²£1,500.00£60,000.00Fictional 40 m² extension; no benchmark claim
Services and finishes40m²£800.00£32,000.00Agreed domestic specification
Fees and approvals1allowance£12,000.00£12,000.00Design and approvals estimate
Risk allowance1allowance£12,000.00£12,000.00Client allowance; release by decision

Other project scenarios

Scroll across if needed to read the whole record. A dash means no value has been entered.

Other project scenarios: completed fictional example
ScenarioConstruction (£)Fees (£)Risk (£)Budget before VAT (£)Scope assumption
Renovation£120,000.00£15,000.00£18,000.00£153,000.00Existing house; no major structural replacement
Office fit-out£220,000.00£25,000.00£22,000.00£267,000.00Internal fit-out; lease and landlord works excluded

These are invented teaching allowances, not current market rates or project quotations. Add the correct project-specific tax, land, finance and client costs before setting a funding requirement.

Understanding your results

These are invented teaching allowances, not current market rates or project quotations. Add the correct project-specific tax, land, finance and client costs before setting a funding requirement.

How it works

The workbook provides blank working records. Grey cells calculate from the entered inputs; yellow cells are for your information. The completed example stays on this page.

Read the related guidance for the context and checks behind this template.

If you need help preparing or reviewing the project records, our quantity surveying services explain the tasks available under a separate appointment. Agree the deliverable, responsibilities and required specialist input before work starts.

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