Tarmac vs block paving: which driveway costs less long term?
Tarmac is cheaper to lay; block paving lasts longer and repairs more discreetly. Here's how the sums work out over 20 years.
The quick answer
A tarmac driveway typically costs £4,500, against £5,500 for block paving, for a standard driveway. Tarmac is cheaper up front by a wide margin, but it wears out sooner and is harder to patch neatly — so the driveway that costs less today isn't always the one that costs less by the time you've owned the house 20 years.
What you pay on day one
Across the surfaces we cost regularly, the spread at typical size looks like this:
| Material | Typical | Usual range | Lifespan |
|---|---|---|---|
| Gravel | £3,050 | £2,400 – £4,000 | – |
| Tarmac | £4,500 | £3,500 – £5,850 | 15-30 years |
| Plain concrete | £4,750 | £3,700 – £6,200 | 30-40 years |
| Pattern-imprinted concrete | £5,350 | £4,150 – £6,950 | – |
| Block paving | £5,500 | £4,250 – £7,100 | 25-75 years |
| Resin-bound gravel | £5,950 | £4,650 – £7,750 | – |
Tarmac sits near the bottom of that table for upfront price. It's a hot-laid, single-material surface with fast installation — a crew can often lay and compact a driveway in a day or two once the base is in. Block paving costs more because it's labour-intensive: every block is laid and cut by hand over a compacted sub-base and edge restraints, and the labour bill dominates the total far more than it does with tarmac.
Lifespan is where the numbers flip
The lifespan column in that table is the one worth reading twice. Block paving is a system of small, replaceable units on a stable base — it typically lasts noticeably longer than a tarmac surface before it needs anything more than spot repairs. Tarmac's binder degrades with UV and frost over time, and once it starts cracking or rutting, the practical fix is usually a full resurfacing rather than a patch that blends in.
Run a rough per-year figure — full cost divided by expected lifespan — and block paving's higher purchase price is spread over enough extra years that the annual cost gap narrows a long way, even though tarmac never overtakes it purely on sticker price.
Repairs tell the real story
This is the part the headline price doesn't capture:
- Tarmac: cheap and quick to patch, but a patch is visibly a different colour and texture from day one — tarmac ages and fades unevenly, so repairs never disappear.
- Block paving: an individual cracked or oil-stained block can be lifted and swapped without disturbing the rest of the drive, and a well-matched block is close to invisible once bedded in. Joint sand needs topping up occasionally and moss needs the odd clean, but that's maintenance, not repair.
- Gravel and resin-bound surfaces sit in between on both counts — gravel needs periodic raking and top-up, resin-bound holds its look well but any deep gouge is harder to spot-fix than a swapped block.
If you expect to sell within five or six years, tarmac's low upfront cost is hard to beat. If you're staying long term, the lower whole-life cost usually favours block paving, particularly on a drive that gets daily use from cars, bins and bikes catching the edges.
Ground conditions change the sum
Both surfaces need a proper sub-base, but the calculation shifts with your ground:
- Soft or clay soil needs a deeper dig and more sub-base material under either surface, which narrows the price gap between them because the base — not the surface — becomes the bigger cost.
- Removing an old surface first (breaking out concrete costs more than lifting old block paving or asphalt) adds to either job equally.
- A sloped drive needs the base engineered to hold its shape, which tarmac and paving both handle, but this again pushes cost into groundwork rather than the surface material itself.
Rules to check before you commit
In England, more than 5 m² of hard surfacing in a front garden needs planning permission unless the surface is permeable, or drains to a permeable area such as a lawn or a soakaway (source: gov.uk guidance, effective since October 2008). Plain tarmac and standard concrete are impermeable, so if the run-off drains to the street rather than the garden, you may need to add a soakaway or channel drain, or apply for planning permission. Block paving laid with permeable joints, and gravel or resin-bound surfaces, more easily meet the permeable test. If the job also involves a new or widened vehicle crossing over the pavement, that's a separate dropped kerb application through your local council, not the driveway job itself.
Getting the right price for your drive
Both surfaces are worth quoting properly rather than assuming the cheaper material always wins — groundwork, drainage, removal of an old surface and edging all move the total more than most homeowners expect. Our New driveway guide breaks the full driveway cost down by surface, base depth and drainage option, and if you're getting quotes in, our "is my quote fair" tool checks a specific quote against local labour and material rates rather than a national average. Many driveway jobs are booked alongside other exterior work — if a new drive is prompting a look at the garage front too, our Garage door guide covers that separately.