Cost is the first question every extension client asks, and the one the industry is worst at answering. National averages are meaningless: what an extension costs in Waltham Chase is not what it costs in Wandsworth, and a figure that ignores your groundworks, glazing, and specification decisions isn't a budget, it's a guess.
What's inside the guide
The Extension Cost Guide gives you realistic local costs for extensions across Hampshire and Sussex, based on real projects, and walks through the five decisions that drive the price up or down: groundworks, structure, glazing, specification, and changes on site. Understand those five before you start and you control your budget; discover them halfway through the build and they control you.
Why we give it away
An informed client makes a better project. When you know roughly what your ambitions cost before the first meeting, the conversation starts at 'how do we make this work' rather than 'that's three times what we hoped'. It saves your time and ours.
Get your copy
The guide is free to download below, no email address required. When you're ready to talk numbers for your own project, the first consultation is free too.