Interactive tool template
A starting point for every BuildGuide calculator, planner and checker. Swap in your own tool and results, and the rest of the page stays consistent.
Before you start
This page is a placeholder built from the shared tool template. Pass your own interactive controls and results into the template and everything else — hero, breadcrumbs, related guides, FAQs and the Ask Mason call to action — comes for free.
Use the tool
Interactive tool area
Your results
Results will appear here
Frequently asked questions
Is this tool a formal decision?
No. BuildGuide tools give early guidance so you know what to expect. Your local authority or a qualified professional confirms the final position.
Do I need an account to use it?
No. You can use every BuildGuide tool without signing in. An account only helps if you want to save a project and track it over time.
Ask Mason
Ask Mason about interactive tool template
Get tailored, plain-English guidance for your home and situation — in under two minutes.
Recommended next steps
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Read guideBuilding Regulations Explained
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Read guideDo I Need Planning Permission?
Find out whether your extension, loft conversion, outbuilding or home improvement needs planning permission. A clear UK guide for homeowners.
Read guideRecommended tools
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Answer seven quick questions and see how likely planning permission, permitted development, building regulations and the Party Wall Act are for your extension.
Open tool Interactive toolAsk Mason: project checker
Describe your project and get tailored, plain-English guidance on the approvals, steps and risks that apply to your home.
Open tool Interactive toolBuilding Regulations Checker
Answer a few short questions about your home improvement for an early, plain-English indication of whether Building Regulations approval is likely to be required.
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BuildGuide tools provide early guidance only. They are not a formal planning decision, legal opinion or professional design.
