Trendi Construction · Project guide
Turn an idea into a workable project brief
A useful budget begins with a defined scope. When the brief is unclear, two proposals can describe different projects even when their totals look comparable.
1. Define the outcome before the finishes
Write down what the project should improve: more usable space, a better layout, accessibility, a change of use, or replacement of worn systems. Record the users and daily activities. Divide requirements into essential outcomes and optional features so later changes can be assessed against the original purpose.
2. Record what is known and unknown
Separate confirmed information from assumptions. Site dimensions, service locations, condition of existing structures, and approval requirements may need investigation. Ask what additional surveys or specialist input are required before a firm scope can be prepared.
3. Compare the same work
Give each bidder the same documents and ask for a written breakdown. A total is easier to assess when the scope distinguishes construction work, design input, approval costs, temporary works, waste removal, fittings, and final testing or handover.
| Quotation item | Question to ask |
|---|---|
| Allowance | What quantity or selection is assumed, and how will the final amount be calculated? |
| Exclusion | Who will supply or arrange the omitted work? |
| Timing | What must be confirmed before work starts, and what could affect the sequence? |
| Change | Who can authorise it, and how will cost and time effects be recorded? |
4. Plan for uncertainty explicitly
Discuss an appropriate contingency for the project’s risks instead of treating every unknown as included. The amount depends on how well the scope and existing conditions are understood. Keep optional upgrades separate so essential work can be prioritised if circumstances change.
5. Keep a decision record
Use a simple register with the decision, responsible person, due date, approved document, and any impact on cost or timing. Record changes against the current drawings and specifications. This helps avoid conflicting instructions and makes the final handover easier to review.
Before committing
- Check that the scope and exclusions are understood.
- Confirm approvals and specialist responsibilities.
- Discuss payment stages and change procedures with the appointed professionals.
- Review the renovation checklist if an existing building is involved.