With price increases in everything from food to building materials, South Africans are now looking for ways to build their homes within their budgets, in both rural and urban areas. The most important part about building is choosing the right affordable materials that will build you a safe, long-lasting structure. This guide will cover where to find affordable building materials for cheap housing, whether traditional, modern, or eco-friendly options, in South Africa. We will also discuss the best options, looking at factors like budget, building type, and location.
Importance of Material Choice
When buying materials, your choice affects:
- Speed rate during constructions
- How much the building cost is per square metre
- How long the building will stay intact
- Energy efficiency
- Money spent on maintenance
- Council approval and compliance
You can reduce your building cost by selecting cheaper materials that are already available in your location.
Cement Blocks: Last longer and Cheaper
Cement blocks are popular in South African construction because of how strong and affordable they are, they are also fire resistant. Cement blocks are mainly used for walls and load-bearing structures.
Advantages of Using Cement Blocks:
- Easily accessible
- Durable
- Usable for both single- or multi-storey homes
Disadvantages:
- Proficient bricklaying required
- Labour-intensive
- Increasing costs of cement
Building Cost Estimate(as of 2025):
- R12–R20 per block
- A complete wall construction cost would be R3,000–R5,000/m²
Building with cement blocks is suitable for permanent housing, backyard rooms, and approved RDP-style homes.
Clay Bricks: A Bit More Expensive But Stronger
Although they are more expensive, clay bricks offer good insulation, are long-lasting, and are fireproof.
Advantages of Building With Clay Bricks:
- The best thermal insulation
- Aesthetically pleasing
- Durable
Disadvantages:
- More expensive compared to concrete blocks
- Takes time to build
Building Cost Estimate: A full wall construction would be R4,000–R6,500/m².
Suitable for upmarket affordable homes or suburban areas with the intention to resell.
Timber: Shorter Building Period, Lightweight
Rural and coastal areas in South Africa have welcomed timber houses in high numbers. Wood can be a cheaper and sustainable building material option with proper treatment.
Advantages of Building with Timber:
- Shorter building period
- Good insulation
- Foundation costs are considerably low
Disadvantages:
- The timber needs to be treated against termites and moisture before construction
- Can be a fire hazard if not fireproofed
- The council approval is limited for some permanent homes
Building Cost Estimate: Basic timber shell would cost R2,500–R4,000/m²
Timber is suitable for garden flats, cabins, low-cost holiday homes and mostly temporary housing.
Corrugated Iron: Low Building Cost, Needs Insulation
A very cheap and affordable roofing and wall cladding option in South Africa would be corrugated iron sheeting (made from zinc or Chromadek). Most informal housing occupants in South Africa use it for building. It is considered safer with the right insulation.
Advantages of Building With Corrugated Iron:
- Cheapest option
- Lightweight
- Quick to build
Disadvantages:
- If not treated, it will rust easily
- Needs extra materials for insulation
- Noisy during rain
Building Cost Estimate: Sheeting only would cost R100–R200/m²
Suitable for roof sheeting, rural housing, garden rooms, and temporary units.
Interlocking Compressed Earth Blocks (CEBs)
CEBs are suitable for inexpensive eco-housing, as they require less mortar and reduce waste. The blocks are made from compressed earth soil and cement.
Advantages of Building With CEBs:
- Highly affordable
- Easily accessible locally
- Effective thermal performance
Disadvantages:
- Requires you to rent a special press machine
- Not recommended for multi-story builds
Building Cost Estimate:Walling would cost R2,000–R3,500/m²
Suitable for rural housing, green homes and DIY builds
Building With Polyurethane Insulated Panels (Sandwich Panels)
The panels are made from two metal sheets with an insulating foam between them, they are lightweight and the best option for quick, modular builds.
Advantages:
- Easy and faster to build with
- Offers the best insulation
- Both moisture and fire resistant
Disadvantages:
- Expensive material cost per m²
- The building might need steel frame
- Less aesthetic appeal
Building Cost Estimate: Installation may cost R3,000–R5,500/m².
Suitable for modular homes, backyard offices, and temporary housing.
Shipping Containers: Segmented & Mobile
South Africans are now widely using converted shipping containers for homes because of their durability and how easy they are to install.
Advantages of Shipping Containers:
- Long lasting and secure
- Fast installation
- Mobility
Cons:
- Expensive
- Extra costs for insulation, ventilation, and conversion
- Limited approval in some municipalities
Building Cost Estimate: A basic fit-out would cost R50,000–R120,000 for a 6m unit
Suitable for backyard rentals, site offices, student housing, and remote cabins.
Second-hand and Reclaimed Materials
Recycled or reclaimed materials are effective when you want to reduce building costs further in South Africa. Materials like:
- Reclaimed bricks
- Second-hand roofing sheets
- Reclaimed timber
- Used windows and doors
Advantages of Recycled Materials:
- Cheap
- Sustainable
- Can be accessed in local demolition sites or salvage yards
Disadvantages:
- Compromised quality
- Labour-intensive sorting and preparation
Suitable when building DIY projects, backyard builds, and for informal settlements.
Cost Estimate of Materials And Their Suitable Use
| Type Of Material | Estimated Price (for 2025) | Suitable For | NB |
| Cement Blocks | R3,000–R5,000 per m² | Durable, low-cost homes | Easily accepted by municipalities |
| Clay Bricks | R4,000–R6,500 per m² | Aesthetic & high resale homes | Slower to build, higher cost |
| Timber | R2,500–R4,000 per m² | Fast-to-build, light structures | Needs to be properly treated |
| Corrugated Iron | R100–R200 per m² | Walls and roofs of temporary homes | Required insulation to improve comfort |
| Compressed Earth Blocks | R2,000–R3,500 per m² | Rural eco-housing | Needs block press equipment |
| Insulated Panels | R3,000–R5,500 per m² | Fast modular homes | High insulation, quick build |
| Shipping Containers | R50k–R120k per unit | Rentals, cabins | Needs interior fit-out |
| Reclaimed Materials | Variably low | DIY & informal builds | Labour-intensive |
Final Tips On Building Cheaper in South Africa
- Wisely choose materials to combine for a cheaper build; for example, a corrugated roof and CEB walls would be suitable and cheaper
- Get a building approval in your municipality before you start any construction, low-cost build included
- Buy local materials to reduce transport costs.
- Consider insulation and waterproofing to avoid expensive maintenance in the future.
- Involve a draftsman or qualified architect for your project
Conclusion
Building a home with a cheaper budget is possible in South Africa if there is proper planning and a combination of the right affordable materials. There are a variety of cheaper options to choose from, like cement blocks, compressed earth bricks, and corrugated iron. Other factors to consider when building a low-cost house are location, budget, whether it’s a temporary or permanent project, and soil type in your area. Do not forget to meet local regulations and get municipal approval for building.
