All projects

Natural Building

Soil, sand, straw and stone make durable walls at a fraction of the cost of imported cement block. These methods have been built and lived in for generations, and the plans here come from builders who documented what actually held up through the rains.

A manual lever block press being worked on site, with pressed blocks curing behind
Natural BuildingVerified Build

Manual Compressed Earth Block Press

A hand-built compound-lever press that turns local soil into load-bearing building blocks for about the price of a bag of cement.

$30 – $60 in materialsIntermediate
Two builders tamping moist earth inside timber formwork to raise a rammed earth wall
Natural Building

Rammed Earth Wall with Reusable Formwork

Tamp moist sub-soil in timber shuttering to raise thick, thermally massive walls that stay cool through the hottest afternoon.

$120 – $350 for reusable formwork; walls cost soil plus labourAdvanced
A team moulding mud bricks on open ground and laying them out to sun-dry
Natural BuildingVerified Build

Sun-Dried Adobe Brick Yard

Mould and sun-cure mud bricks in the open with nothing but soil, straw, water and a timber mould — the cheapest wall material there is.

$10 – $20 for moulds; bricks cost soil and labourBeginner
A builder shaping the clay dome of an earth oven by hand on a prepared base
Natural Building

Cob Bread and Pizza Oven

A domed earth oven on a raised base that holds baking heat for hours from one small fire of scrap wood.

$15 – $40 if the base is salvaged block or stoneBeginner
A plasterer working render onto a masonry wall with a hawk and trowel
Natural Building

Lime and Earth Plaster for Earthen Walls

A breathable three-coat render that protects mud, adobe and earth-block walls from rain without trapping moisture the way cement does.

$40 – $90 per small house of lime and sandIntermediate
Bamboo poles lashed and pinned into a house frame and roof structure under construction
Natural Building

Bamboo Truss Roof Frame

A treated bamboo truss and purlin frame that spans small buildings for a fraction of the cost of sawn timber or steel.

$90 – $300 for a small building, mostly treatment and fixingsAdvanced
Interior of an earthbag structure showing tamped bag courses forming the walls and dome
Natural Building

Earthbag Wall & Dome

Fill polypropylene bags with damp sub-soil, tamp them course by course with barbed wire between, and raise a wall strong enough to carry a roof — or corbel it into a dome.

$120 – $350 for bags, wire and render on a small roomIntermediate
Thatchers repairing a grass roof, laying and dressing new courses over the battens
Natural Building

Grass Thatch Roof

Bundle, comb and lash local grass onto a timber or bamboo frame at a steep pitch for a cool, quiet, no-cost roof that sheds heavy rain.

$0 – $60 if grass is cut locally; twine is the main cash costIntermediate
Dry-stone retaining walls holding cultivated terraces on a hillside
Natural Building

Dry-Stone Retaining Wall

Stack shaped field stone without mortar into a battered, through-stoned wall that drains freely and outlasts anything you could build with a bag of cement.

$0 – $40 if stone is on site; tools are the only real costIntermediate
Workers screeding and floating a freshly poured floor slab level
Natural Building

Soil-Cement Floor Slab

Replace a dust floor with a compacted, cement-stabilised earth slab that sweeps clean, resists damp and costs a fraction of a full concrete pour.

$90 – $250 for a 20 m² roomIntermediate
A woven lattice of poles being packed with clay daub to form a wall
Natural Building

Wattle & Daub Infill Wall

Weave a lattice of split poles between timber posts and pack it with clay-straw daub — the fastest low-cost wall there is when you have wood, soil and hands.

$10 – $60 per room if poles and soil are cut on siteBeginner
Glass bottles set in mortar forming a light-admitting infill wall panel
Natural Building

Bottle Wall Infill & Light Panel

Lay glass bottles in mortar between structural posts to fill non-load-bearing panels and bring daylight deep into a room without buying glazing.

$15 – $80 per panel, mostly cement and sandBeginner
A brickmaker beside a stacked clamp kiln of green clay bricks
Natural Building

Clay Brick Clamp Kiln

Stack green bricks into a self-firing clamp with fuel channels, seal it with mud, and fire your own burnt bricks without buying a permanent kiln.

$100 – $350 in fuel for a 5,000-brick clampAdvanced
Interlocking compressed earth blocks showing the tongue-and-groove keys that lock a wall together
Natural Building

Interlocking Stabilised Soil Block Wall

Lay pressed blocks that key into each other so the wall goes up dry — far less mortar, far less cement, and a straight wall even with a small crew.

$120 – $350 for a small room's walls if soil is on siteIntermediate
Freshly moulded concrete roof tiles laid out to cure in the yard
Natural Building

Micro-Concrete Roof Tiles

Vibrate thin sand-cement tiles on a simple screeding table and roof a house for a fraction of imported sheet cost — quieter in rain and far cooler inside.

$0.30 – $0.60 per tile in materials; roughly 14 tiles per m²Intermediate
Labelled cutaway diagram of a stone masonry plinth: hardcore base, stepped footing, coursed stonework, damp-proof course and backfillDiagram
Natural Building

Stone Masonry Plinth & Foundation

The unglamorous course that decides whether an earth building lasts thirty years or three: a stone plinth that lifts the walls clear of splash and rising damp.

$30 – $150 depending on how far the stone travelsBeginner
A lashed bamboo ladder standing against a wall
Natural Building

Bamboo Scaffold & Ladder

Lash a working platform and ladder from bamboo poles so you can plaster, roof and repair at height without hiring steel scaffold.

$15 – $50 for poles and lashing ropeIntermediate