Gravel vs Block Paving
Gravel is cheaper and easier to install, costing £5–£20 per m², while block paving costs £50–£120 per m² but offers a smarter finish and longer lifespan. Gravel suits tight budgets; block paving suits homeowners wanting durability and kerb appeal.
What Is Gravel?
Gravel is a loose aggregate surface material made from crushed or naturally rounded stone, typically laid 50–75mm deep over a compacted sub-base and weed membrane. It is widely used for driveways, garden paths, and decorative beds across UK properties. Gravel drains freely, requires no specialist tools, and can be laid as a DIY project in a single weekend. For step-by-step guidance, see our guide on how to lay a gravel path.
What Is Block Paving?
Block paving consists of individual concrete or clay blocks — also called pavers or setts — bedded into compacted sharp sand over a solid sub-base and locked together with kiln-dried jointing sand brushed into the gaps. The interlocking structure creates a rigid, load-bearing surface suitable for driveways, patios, and paths. It delivers a clean, structured appearance and lasts 20–30 years with minimal upkeep. For installation detail, visit the Driveways & External Guide.
Side-by-Side Comparison
| Factor | Gravel | Block Paving |
|---|---|---|
| Cost per m² | £5–£20 (materials); £15–£35 installed | £50–£120 installed (materials + labour) |
| Durability | Moderate — scatters with use; top up needed every 2–5 years | High — withstands heavy vehicles; individual blocks replaceable |
| Appearance | Informal, natural look; wide colour choice | Smart, structured finish; wide pattern and colour options |
| Install Difficulty | Easy — DIY-friendly with basic tools | Moderate–Hard — requires sub-base prep, cutting, and compaction |
| Maintenance | Regular raking, weed control, periodic top-up | Occasional weed removal, re-sanding joints, periodic cleaning |
| Lifespan | Indefinite with top-ups; surface degrades after 5–10 years without care | 20–30 years with basic maintenance |
Gravel — Pros and Cons
- Very low upfront cost — one of the most affordable surfacing options available
- Excellent natural drainage — helps manage surface water runoff in line with UK SuDS guidance
- Easy DIY installation — no specialist equipment needed for most projects
- Deters intruders — the noise underfoot acts as a passive security feature
- Flexible — can be removed, replenished, or redesigned easily
- Migrates onto lawns and roads without edging or a containment system — see our guide to stop gravel spreading on a driveway
- Not suitable for steep slopes — gravel shifts on gradients above around 1:20
- Uncomfortable underfoot for pushchairs, wheelchairs, and mobility aids
- Weeds can establish through the membrane over time, requiring ongoing treatment
- Requires periodic topping up as stone is displaced or sinks
Block Paving — Pros and Cons
- Smart, durable finish that adds kerb appeal and can increase perceived property value
- Individual blocks can be lifted and relaid to access underground services without breaking up the whole surface
- Load-bearing — suitable for cars, vans, and light commercial vehicles
- Wide range of colours, sizes, and laying patterns to suit different property styles
- Low ongoing maintenance once properly installed
- High upfront cost — significantly more expensive than gravel, especially for large areas
- Sub-base preparation is labour-intensive and usually requires hired equipment
- Poorly laid block paving sinks or shifts — especially where sub-base depth is inadequate. If this happens, see how to fix sunken patio slabs for repair approaches
- Jointing sand can wash out over time, allowing weed growth and block movement
- Impermeable standard blocks may need planning permission for front garden driveways over 5m² under UK regulations — permeable block paving is exempt
Which Is Better For…?
- A front driveway on a tight budget: Gravel wins — material costs are a fraction of block paving and a competent DIYer can complete a typical driveway in a weekend. Use a geotextile membrane and rigid plastic or metal edging to control spread.
- A heavily used family driveway (cars parked daily): Block paving wins — it handles repeated vehicle loading without rutting and presents a cleaner look. Opt for permeable blocks to avoid needing planning permission for front garden hardstanding.
- A garden path linking lawn to a shed or seating area: Gravel is the better-value choice for light foot traffic. For a more stable surface, consider combining gravel with stepping stones to firm up the route.
- A patio or entertaining area: Block paving edges it — furniture sits level, it drains well if correctly laid, and it stays smart for decades. For budget patio ideas, see how to lay a patio on a budget.
- A rental property requiring low landlord intervention: Gravel wins on simplicity and cost — it is virtually maintenance-free short-term and easy to top up between tenancies. Block paving is better long-term but carries a higher initial outlay.
UK Cost Comparison
For gravel, expect to pay £5–£20 per m² for materials alone depending on stone type (pea gravel sitting at the lower end, decorative slate chippings at the higher end). Fully installed by a contractor, costs typically run £15–£35 per m² including membrane, edging, and labour. For block paving, installed costs — covering sub-base excavation, Type 1 MOT aggregate, sharp sand bed, blocks, and jointing sand — range from £50 to £120 per m² depending on block quality, pattern complexity, and regional labour rates. According to Checkatrade, a typical 40m² block-paved driveway costs £3,000–£6,000 fully installed in the UK. Gravel for the same area would cost £600–£1,400 installed. Both materials attract standard-rate VAT on labour and materials when using a contractor. For a broader view of surfacing options, see the Best Patio Materials Guide.
Frequently Asked Questions
Does block paving need planning permission in the UK?
Standard impermeable block paving on a front garden driveway larger than 5m² requires planning permission under permitted development rules. Permeable block paving (which allows water to drain through) is exempt. Rear garden paving is generally unrestricted. Check with your local planning authority if in doubt — guidance is available on gov.uk.
How deep should gravel be for a driveway?
For a gravel driveway, lay at least 50mm of gravel over a compacted sub-base of 100–150mm of Type 1 MOT aggregate. Using less than 50mm of gravel means it will displace quickly under vehicle tyres and offer little coverage.
Can I lay block paving myself?
Yes, but it is a demanding project. You need to excavate to 200–250mm depth, compact a Type 1 sub-base, screed sharp sand to a consistent level, lay and cut blocks, and compact the finished surface. Hiring a plate compactor is essential. Many DIYers manage smaller areas (up to around 20–30m²) successfully.
Which surface is better for drainage?
Gravel drains freely by its nature and is one of the best options for surface water management. Standard block paving is largely impermeable, but permeable block paving — with open joints and a free-draining sub-base — performs comparably to gravel for drainage and satisfies SuDS requirements.
How long does gravel last compared to block paving?
Gravel itself does not wear out, but it migrates and compresses over time. Expect to top up a gravel driveway every 3–5 years. Block paving, when correctly installed, lasts 20–30 years with only minor maintenance such as re-sanding joints and occasional cleaning.
When laying block paving, compact the sand bed before laying blocks rather than after — a pre-compacted screed gives a more consistent level and reduces the chance of differential settlement. Run your plate compactor over the finished surface twice: once diagonally across the laying pattern, then once in the opposite diagonal, to lock blocks evenly.
Sources
- Checkatrade — Block paving cost guide — checkatrade.com
- GOV.UK — Permitted development: hard surfaces in front gardens — gov.uk
- Which? — Driveway costs and materials guide — which.co.uk
This guide is for general information only. Always work safely and follow manufacturer instructions. DIYnut accepts no liability for injury or damage arising from DIY work.
