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UK Home Project Budget Planner

Combine several home-improvement packages into one early-stage budget, apply a consistent regional model and keep contingency visible instead of hiding it inside project prices.

Data review: 1 September 2026 · 21 benchmark projects · 14 location models

Projects in this budget

Budget line

House renovation

National benchmark: £43,530–£110,350

£43,530–£110,350

Cost guide →

Budget line

Kitchen renovation

National benchmark: £5,250–£28,400

£5,250–£28,400

Cost guide →

Budget line

Bathroom renovation

National benchmark: £5,500–£14,000

£5,500–£14,000

Cost guide →

Projects before contingency£54,280–£152,750
10% contingency£5,428–£15,275

Combined planning budget

£59,708 – £168,025

Planning midpoint £113,867 for 3 projects using the National baseline 1.00× model factor and 10% contingency.

Avoid double-counting overlapping scopes. A whole-house renovation benchmark can already include work that also appears as a separate kitchen, bathroom, flooring or decorating line. Use the planner for distinct packages, or remove overlapping lines before relying on the combined total.

This planner uses the same published benchmark layer as the regional comparison tool. Regional factors and contingency are UK Home Costs planning assumptions, not observed local quote averages.

Compare regions →Methodology →Sources & data →

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When to use this planner

Use the planner when a programme contains several distinct packages — for example a roof replacement, rewiring and a driveway — and you want one broad budget before collecting detailed quotes. Open the linked cost guide for each line when you need to check the underlying benchmark.

Do not add overlapping scopes twice

Whole-house renovation or new-build benchmarks can already contain work that also appears as separate kitchen, bathroom, flooring, decorating or trade lines. The planner deliberately leaves that judgement with you rather than silently trying to remove overlaps.

Contingency

Contingency is applied after the selected project ranges are combined. It is a user-controlled planning allowance, not a sourced prediction that the project will overrun by that percentage.

Privacy

The planner runs in your browser and does not require an account, email address or phone number. See our Privacy Policy for the wider site policy.