Aggregate Driveway Cost: Full Guide for Homeowners
If you like the durability of concrete but want a more textured, decorative finish, an exposed aggregate driveway is likely on your shortlist — and cost is usually the next question. As a general guide, exposed aggregate driveways typically cost between $130 and $230 per square metre supplied and laid, sitting above plain concrete but generally below premium paving or stamped finishes.
The exact price depends on the aggregate type and exposure level chosen, your site's ground conditions, access, and size. Exposed aggregate remains one of the most popular decorative driveway finishes because it offers better slip resistance and hides everyday marks and staining better than plain concrete, while still delivering the long lifespan concrete is known for. Below, we break down typical costs by size and aggregate style, what drives pricing up or down, and what to expect at each stage of the process.
Aggregate Driveway Cost by Size
| Driveway Type | Approx. Area | Estimated Total Cost |
|---|---|---|
| Single-car driveway | 20 – 30 m² | $2,600 – $6,900 |
| Double-car driveway | 40 – 60 m² | $5,200 – $13,800 |
| Medium driveway | 80 – 100 m² | $10,400 – $23,000 |
| Long/rural driveway | 150 – 200 m² | $19,500 – $46,000 |
Prices are indicative estimates only, exclude GST, and assume standard site conditions. Get an on-site quote for an accurate figure.
Aggregate Driveway Cost by Style
| Aggregate Style | Estimated Cost (per m²) | Notes |
|---|---|---|
| Standard exposed aggregate | $130 – $180 | Common river stone or basalt aggregate; light exposure |
| Premium/decorative aggregate | $170 – $220 | Larger or coloured stones; deeper exposure for a bolder look |
| Aggregate with banding/borders | $190 – $250 | Adds contrasting plain concrete or paver borders for definition |
Larger, more decorative aggregate and deeper exposure levels require more labour to wash and finish correctly, which is reflected in the higher end of the range.
Aggregate vs Other Driveway Finishes (Cost Comparison)
| Surface Type | Estimated Cost (per m²) | Typical Lifespan |
|---|---|---|
| Gravel | $20 – $50 | 5 – 10 years (with maintenance) |
| Asphalt | $65 – $120 | 15 – 20 years |
| Plain concrete | $80 – $150 | 25 – 30+ years |
| Exposed aggregate concrete | $130 – $230 | 25 – 30+ years |
| Stamped/patterned concrete | $180 – $280 | 25 – 30+ years |
Exposed aggregate sits above plain concrete and below stamped concrete on price, offering a middle-ground decorative option that still delivers concrete's long-term durability.
What Affects Your Aggregate Driveway Price
The per-square-metre rate is only part of the picture. Several factors shape the final quote:
Site preparation and ground conditions. As with any concrete driveway, this is usually the biggest cost driver, more so than the aggregate finish itself. Variable soil types, poor drainage, or unstable ground may need extra excavation, compaction, or drainage work before the pour.
Aggregate type and size. Standard river stone or basalt aggregate is more affordable than larger, coloured, or imported decorative stone. The size and colour of the aggregate you choose has a direct effect on material cost.
Exposure depth. A light surface exposure, where only the top of the aggregate is revealed, is cheaper and faster to achieve than a deep exposure that reveals more of each stone, since deeper exposure requires more careful washing and finishing.
Thickness and reinforcement. Standard residential driveways are typically poured around 100mm thick with steel reinforcing. Driveways expected to carry heavier vehicles need to be thicker, increasing material cost.
Access for machinery and trucks. Sites with easy access for concrete trucks and equipment are cheaper to work on than tighter or restricted-access properties requiring extra handling or pumping.
Shape and design complexity. A straight, single-width driveway is more affordable than a curved, double-width, or bordered design, since more complex layouts require additional formwork and labour.
Removal of an existing surface. If your project involves removing an old driveway or surface first, this adds to the overall cost and should appear as a separate line item on your quote.
What to Expect at Each Stage
| Stage | What Happens | Typical Timeframe |
|---|---|---|
| Site assessment & quote | Contractor assesses ground conditions, access, and aggregate options; provides itemised quote | 1 – 3 days |
| Excavation & preparation | Existing surface removed if needed; site excavated and levelled | 1 – 2 days |
| Base compaction | Aggregate base laid and compacted to support the slab | 1 day |
| Formwork & reinforcement | Edge forms set; steel reinforcing placed | 1 day |
| Concrete pour | Concrete poured and levelled to the correct thickness | 1 day |
| Exposing & washing | Surface cement paste washed away to reveal the aggregate at the desired depth | Same day or next day |
| Sealing & curing | Sealer applied once surface is ready; concrete continues curing | 7 – 28 days |
The exposing and washing stage is the step unique to this finish, and timing matters — washing too early can dislodge aggregate, while washing too late makes it harder to expose evenly.
Exposed Aggregate Concrete Price: Is It Worth It?
For many homeowners, yes. Beyond the visual appeal, exposed aggregate offers genuinely practical benefits over plain concrete: better slip resistance in wet weather, and a surface that hides everyday marks, tyre residue, and staining more effectively. It can also support kerb appeal and resale value, since it reads as a more considered, higher-end finish than a plain broom surface.
That said, if budget is the primary concern, a plain concrete driveway offers the same underlying durability and lifespan at a lower cost — the aggregate finish is a genuine upgrade, not a necessity for a driveway that performs well.
It's also worth remembering that the cheapest quote for an aggregate driveway isn't always the best value. A driveway with inadequate base preparation or a rushed exposing process may look fine initially but is more prone to cracking, uneven exposure, or premature wear. Choosing a contractor experienced specifically with aggregate finishes, not just plain concrete, tends to make a real difference to the final result.
Frequently Asked Questions
How much does an aggregate driveway cost?
A standard single-car exposed aggregate driveway (around 20–30 m²) typically costs between $2,600 and $6,900, depending on aggregate style, site conditions, and access.
Is exposed aggregate more expensive than plain concrete?
Yes, exposed aggregate generally costs $130–$230 per square metre compared to $80–$150 for plain concrete, due to the additional materials and finishing process involved.
How long does an exposed aggregate driveway last?
With proper installation and periodic sealing, an exposed aggregate driveway can last 25 to 30 years or more, similar to plain concrete.
Does exposed aggregate need sealing?
Yes, sealing is recommended both immediately after installation and periodically afterward (typically every few years) to protect the surface and enhance the appearance of the exposed stone.
Can I choose the colour and type of aggregate used?
Yes, most contractors offer a range of aggregate types, sizes, and colours, from natural river stone to decorative coloured aggregate, allowing you to match your property's overall look.