
Anyone planning a new build or a major extension in the South West is increasingly asking the same question: how do I get a warm, quiet, energy-efficient home without the heating bills spiralling every winter? It’s a question that’s pushing more self-builders and small developers towards a building method that’s been quietly proving itself for years, insulated concrete formwork.
The wider construction industry is clearly moving in this direction. A Sheffield-based materials manufacturer, earth4Earth, has just opened a new UK factory producing carbon-negative bricks made from soil that would otherwise go to landfill, using a low-temperature process that actually absorbs more carbon than it releases. It’s part of a broader shift towards building materials and methods that do more than just meet minimum standards.
Insulated concrete formwork, or ICF, fits squarely into that same shift. In simple terms, it involves stacking lightweight insulating blocks and filling them with concrete, giving you a wall that’s structurally strong and highly insulated from the moment it’s built, rather than insulation being bolted on afterwards as a separate job.
For self-builders, the practical benefits are hard to ignore: excellent airtightness, consistently warm rooms, lower long-term heating costs, and often a faster build programme since walls, insulation and a ready surface for finishes all go up in one process. It’s increasingly the method of choice for anyone building in Devon, Dorset, Somerset or Cornwall who wants their new home to perform well for decades, not just look good on completion day.
The Fell Partnership are the appointed Nudura ICF suppliers for the West of England, supplying and supporting builders, self-builders and architects who want to build this way. If you’re planning a project and want to know whether ICF is right for it, more information is available at thefellpartnership.co.uk.

