How to define a design or renovation scope and budget

Separate essentials from preferences

Create three lists: must change, optional if affordable, and must remain. Improving a kitchen layout is a need; choosing a particular stone is a material preference; retaining an existing fridge is a design constraint.

What does the budget cover?

State whether your figure covers design only or also construction, materials, equipment and furniture. Appliances, moving, temporary accommodation and building charges may sit outside the main estimate. List them separately. If you do not have a figure yet, share the scope and priorities.

Why area alone does not set a price

Spaces of the same size can involve very different existing conditions, services, materials, fabrication and access constraints. Compare itemised specifications, quantities and exclusions, rather than total price alone.

Describe real timing constraints

• Separate a preferred start date from an essential completion deadline.
• Say whether the space will remain occupied during work.
• Record building work hours, lift access and material delivery restrictions.
• Mention purchases or orders already made.

Agree the working scope

The proposal should define design deliverables, review stages, construction responsibilities, timing and the basis of fees. Agree how changes will be recorded and approved. This guide is neither a quotation nor a contract.