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2026-10-05 · 6 min read

Planning an extension with neighbours and foundations in mind

How to think about neighbour questions, ground information and cash timing when you’re extending a home you already live in.

extensionparty wallfoundations

Extensions feel familiar because you’re already in the house. That comfort can hide process risk: shared structures, nearby excavation, and foundation design that depends on information you don’t have yet.

Homehint’s party-wall journey checks what may apply from simple facts — shared or nearby buildings, the kind of work you’re doing — then helps you prepare questions for the right professional.

On Money, treat a quote as a quote. Keep a planning budget for groundworks, then attach the real figure and supplier when it lands. That clarity stops “we’re fine on budget” from meaning three different things in the same kitchen conversation.

If you’re living through the works, logistics matter as much as drawings. The product can surface living-on-site considerations while keeping Today focused on the next step.

Start free, describe your extension in the guided setup, and open the discoveries that appear. One clear next step beats a wall of tasks every time.

Ready to know what to do next?

Start free in your browser. Set up your project in minutes and keep one clear next step in front of you.