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01
What affects the cost of a house extension
The main factors that set the cost of a house extension in North London, and how to get an itemised estimate for your own plans.
Read the extension costs guide
02
Do you need planning permission for your extension?
A plain guide to permitted development and planning permission for house extensions in England, and where to check before you design.
Read the planning permission guide
03
Party wall basics for extensions
What the Party Wall etc. Act 1996 means for a house extension: when it applies, notices and timings, surveyors and awards, in plain English.
Read the party wall guide
04
Living at home during an extension
How to plan for living at home during an extension: the kitchen, dust, access, safety, children and pets, and what to ask your builder first.
Read the living at home guide
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