Learn 3 Key Natural Building Techniques
- Aug 19, 2025
- 3 min read
Updated: Aug 20, 2025
by Birgitta Fontel, One Regeneration Team
There’s something deeply grounding about working with the earth itself. When our hands meet clay, straw, and sand, we’re not just making walls or stoves—we’re shaping spaces that breathe, heal, and regenerate. These ancient skills are alive again, guiding us toward sustainable living and resilient communities. Today, we’ll explore three simple yet powerful earth building techniques you can learn right now: making and mixing cob, forming bricks from cob, and building a rocket stove with those very bricks.
1. Making and Mixing Cob for Natural Building
Cob is one of the oldest, simplest, and most accessible natural building materials on the planet. It’s a blend of clay, sand, straw, and water—and the beauty is, you don’t need fancy tools or machinery. Just your feet and a good rhythm.
The process:
Start by finding your clay-rich soil and mix it with sand for strength.
Add water slowly until the texture feels like bread dough.
Fold in straw—nature’s reinforcement—to give the mix both tensile strength and flexibility.
Mixing cob often happens barefoot, dancing on tarps with friends. It’s a full-body practice—one that connects you with the land, with community, and with yourself.
In this video you will see how we are making a cob mixture perfect for any natural building technique:
2. Making Earthen Bricks (Adobe)
Once you’ve got your earthen mix (a cob mix is just fine), you can shape it into sun-dried bricks. These bricks become building blocks for structures both temporary and long-lasting.
Here’s how:
Create simple wooden molds (any size you like).
Soak them in water to make the cob mixture slide out easily.
Press the cob mixture firmly into the mold, smoothing the edges.
Press your fingers on the top like you making a foccacia loaf to make a rough surface.
Slide the molds off and leave the bricks to dry in the sun.
Cover them so they dry even.
After a few days—or weeks, depending on your climate—you’ll have strong, earthy bricks that can be stacked, mortared with earthen mortar, or used in creative projects. Think benches, walls, or a rocket stove.
In this video you will see a step by step guide on how we are making bricks with the cob mixture we made in the previous video:
3. Building a Rocket Stove with Your Adobe Bricks
One of the most transformative tools you can build is a rocket stove—a super-efficient cooking stove that burns small sticks cleanly and produces very little smoke. With your cob bricks, you can create one in a single afternoon.
Steps:
Lay out your bricks in your preferred shaped pattern to form the burn chamber and chimney. (see video for reference.)
Wet the bricks lightly and put down the first layer of mortar made out of the same material, but fresh.
Make a U shape with bricks and add a grating for the firewood.
Add another two layers of bricks, start with a half brick so they stagger correctly.
Check the levels in between layers.
Cover up the chamber with a layer of bricks.
Start with the chimney.
Make sure your chimney is tall enough to pull air through (this is what makes the stove roar like a rocket).
Let it set, smooth surface with a layer of mortar with finer fiber.
When dry, Fire it up with a handful of dry sticks.
What you’ll find is pure magic: a flame that’s concentrated, efficient, and deeply satisfying to cook on. It’s a small step toward food sovereignty and a big step away from dependency on fossil fuels.
Why These Skills Matter
Each of these techniques—cob mixing, adobe bricks, rocket stoves—are more than just DIY projects. They are acts of regeneration. They give us the tools to rebuild with the earth, not against it, creating spaces that nurture us while treading lightly on the planet.
Whether you’re dreaming of a full cob home, experimenting with a garden bench, or just making a rocket stove to cook your next meal, you’re part of a lineage of builders who trusted the earth to provide. And it always does.
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