Garage Extension Prices: What Impacts Single And Double Garage Extension Cost Near You in Johannesburg, Roodepoort, Sandton, Randburg, Eastrand, Midrand, Centurion & Pretoria
Ever thought about turning that small car space into something more valuable? Garage extension prices are now a hot topic. In 2025, many homeowners in South Africa want to make the most of their property. They’re looking to improve it in smart ways.
At Handyman Johannesburg, we’ve put together a detailed price guide. It’s to help you figure out the costs of adding more space for your car. Whether you live in busy Sandton, quiet Pretoria, or anywhere in Gauteng, knowing the costs is key to planning well.
The cost depends on what you need. Simple extensions in South Africa start at R6,500 per square metre. But, if you want top-notch finishes, prices can go over R20,000 per square metre. In Gauteng, most people budget around R13,330 per square metre on average.
This guide covers everything that affects your extension costs. We talk about materials, labour, design, and how prices change in different places. We aim to help you make smart choices for your home project. This way, you won’t face any surprise costs – Contact Us
Current Garage Extension Prices Across South Africa
At Handyman Johannesburg, we’ve gathered data on garage extension costs across South Africa. This helps you plan your 2025 project budget. Prices vary a lot, influenced by location, materials, and how detailed the extension is. On average, garage extension costs per square metre range from R6,500 to R15,000 in 2025. This is a 3-5% increase from 2024, due to higher material costs and inflation.
Our team has worked on many projects in Gauteng and elsewhere. This gives us insight into how prices differ in different areas. Knowing these differences is key for accurate budgeting, if you’re looking for custom quotes.
Average Cost Per Square Metre in 2025
The average cost for standard garage extensions in South Africa is about R11,000 per square metre. But, costs can vary a lot depending on the details. Basic extensions start at R6,500 per square metre, while mid-range ones cost R9,000-R12,000. Premium extensions with fancy features can go over R15,000 per square metre.
| Quality Level | Cost Per m² | Features | Timeframe |
|---|---|---|---|
| Basic | R6,500-R8,500 | Standard finishes, basic structure | 2-3 weeks |
| Mid-range | R9,000-R12,000 | Better insulation, quality doors | 3-4 weeks |
| Premium | R13,000-R20,000 | Custom design, superior materials | 4-6 weeks |
Price Comparison: Johannesburg, Sandton, Pretoria & Gauteng
Prices vary a lot in major cities. Johannesburg and Sandton have higher prices, around R13,500-R15,000 per square metre. Pretoria and Centurion are a bit cheaper, at R12,000-R14,000 per square metre. Roodepoort, Midrand, and Benoni offer even more affordable options, from R10,000-R12,000 per square metre.
We received quotes from three different companies for our double garage extension in Fourways. Handyman Johannesburg not only provided the most detailed breakdown of costs but also offered the best value considering the quality of materials proposed.
Budget vs Premium Extension Options
For those on a tight budget, extensions start at R6,500 per square metre. These have standard brick, basic roofing, and basic electricals. Premium extensions, starting at R15,000 per square metre, have fancy features, better insulation, custom designs, and tech integration.
While a basic extension works, quality materials and craftsmanship save money in the long run. They reduce maintenance costs and increase your property’s value.
Factors That Influence Your Garage Extension Costs
The cost of your garage extension project depends on several key factors. At Handyman Johannesburg, we help homeowners understand these to avoid surprises. We aim to create the perfect garage space within your budget.
Knowing these cost factors helps you plan better. Each part of the project, from the foundation to the finishing touches, affects the total cost.
Size and Structural Considerations
The size of your garage extension affects the cost. Larger extensions need more materials and labour. Foundation work is a big expense, costing R7,000 to R15,000 per square metre.
Complex structures like load-bearing walls or sloped sites increase costs. Extensions needing excavation or built on slopes cost more due to extra engineering needs.
Building Materials and Quality Differences
The materials you choose greatly impact the cost and durability of your extension. Standard brickwork costs R500 to R800 per square metre. Plastering adds R80 to R150 per square metre. Premium materials can double these costs.
Roofing options vary from affordable IBR sheeting to expensive concrete tiles. Door and window choices also vary, with big price differences between basic steel frames and custom options.
| Material Category | Budget Option | Mid-Range Option | Premium Option |
|---|---|---|---|
| Walls | Standard brick (R500/m²) | Insulated brick (R650/m²) | Double cavity walls (R800/m²) |
| Roofing | IBR sheeting (R350/m²) | Concrete tiles (R550/m²) | Insulated flat roof (R850/m²) |
| Flooring | Concrete screed (R180/m²) | Reinforced concrete (R280/m²) | Epoxy-coated (R450/m²) |
| Doors | Standard roller (R5,000) | Sectional (R8,500) | Automated aluminium (R15,000) |
Labour Costs and Timeframes
Labour costs make up 25-30% of your budget. Skilled workers charge R150 to R500 per hour. Faster completion timelines can increase labour costs.
A standard garage extension takes 3-4 weeks. More complex projects can take 8-12 weeks. Delays or unexpected issues can increase labour costs.
Permits, Plans and Regulatory Requirements
Complying with regulations is a significant cost factor. Architectural plans cost R5,000 to R15,000. Structural engineer reports add R3,000 to R8,000.
Municipal approval fees are R2,000 to R5,000 in South Africa. Urban areas like Johannesburg charge more. Some areas require special approvals or design changes.
Ignoring permits can lead to fines or demolition. Budgeting for these costs is essential. We always recommend planning for them early.
Popular Garage Extension Types and Their Price Ranges – Garage Extension Prices
Garage extensions vary from simple to complex, with prices to match. Handyman Johannesburg has worked on many projects in South Africa. We offer reliable cost estimates for 2025.
The type of extension you choose affects both cost and function. Knowing this helps match your budget and needs.
Single vs Double Garage Extensions
A single garage extension is 3m x 6m (18 square metres). It costs between R117,000 and R270,000. These are great for small spaces or single-car homes.
Double garage extensions are 6m x 6m (36 square metres). They cost R234,000 to R540,000. The price difference is due to more space and stronger foundations.
Attached vs Detached Garage Extensions
Attached garage extension prices are 15-25% less than detached ones. This is because they use existing walls and foundations, saving on materials and labour.
Brick garage extension prices for attached are R6,500-R13,000 per square metre. Detached ones cost R8,000-R15,000 per square metre. For lighter options, timber frame garage extension costs start at R7,000 for attached and R8,500 for detached.
Multi-Purpose Extensions: Workshops and Living Spaces
Multi-functional garage extensions are popular in South Africa. They offer great value by combining storage with extra space.
Workshop and Storage Extensions
Workshop and storage extensions add 15-20% to garage costs. Prices are R7,500-R16,000 per square metre. They include features like electrical points and workbenches, perfect for hobbies or businesses.
Living Space Above Garage Extensions
The cost to add living space above a garage is high, from R12,000-R20,000 per square metre. These loft conversion over garage projects add space without expanding your property.
A 36 square metre living area above a double garage costs R432,000 to R720,000. This is a big investment but offers great value, even in expensive areas.
The high costs are due to structural needs like stronger foundations and proper staircases. Despite the cost, these extensions are popular for their versatility, such as guest rooms, offices, or rentals.
Getting the Best Value for Your Garage Extension Project – Garage Extension Prices
When planning your garage extension budget, it’s important to think carefully. At Handyman Johannesburg, we suggest getting at least three detailed quotes from trusted contractors. This way, you can compare costs effectively. Each quote should clearly outline the costs for materials, labour, and permits.
Timing your project right can also help save money. In South Africa, the construction industry often offers better rates during late autumn and winter. This can save you 5-10% on your garage extension costs.
It’s wise to include a 10-20% contingency fund in your budget. Even with the best plans, unexpected issues can arise. This extra money ensures your project stays on track without cutting corners on quality.
If budget is tight, think about doing your garage renovation in stages. Start with the basics and add special features later. This way, you can spread out the costs over time, working towards your dream garage.
Our strong supplier connections help us offer competitive prices across Johannesburg, Sandton, Pretoria, and Gauteng. We provide detailed, no-obligation quotes tailored to your needs. Contact us today to get a garage extension estimate and see why our solutions are great value for South African homeowners.
