Block Paving vs Resin vs Tarmac: Driveway Comparison Guide

Summary

Which driveway material to recommend is one of the most common conversations a paving contractor or landscaper has with a customer, and the honest answer is "it depends on budget, how long they're staying, and whether they care about kerb appeal" rather than one material being universally best. Each of the three mainstream options — block paving, resin bound, and tarmac — has a genuinely different cost, lifespan, and maintenance profile, and each fails in a different, predictable way when installed to a poor specification.

The single biggest driver of driveway failure across all three materials is not the surface finish but the sub-base underneath it. A driveway with the correct sub-base depth and compaction will perform close to its stated lifespan regardless of which surface is chosen; a driveway with an under-specified sub-base — the "£35–£50/m² cowboy job" using 50–100mm of sub-base against a 150–200mm specification — will fail within 3–5 years no matter how good the surface material is. Customers comparing quotes purely on price per square metre are usually comparing a properly built driveway against a corner-cut one, not comparing like-for-like surface materials.

This article compares the three materials on the factors that actually matter to a customer decision: capital cost, lifespan, SuDS/planning compliance, maintenance burden, repairability, and appearance — with the sub-base and drainage requirements that underpin all of them.

Key Facts

• SuDS 5m² rule — under the 2008 GPDO Schedule 2 Part 1 Class F amendment, any new or replacement front driveway over 5m² using an impermeable surface requires planning permission unless runoff is drained to a permeable area within the curtilage or the surface itself is permeable
• Block paving lifespan — a correctly specified installation (150–200mm Type 1 sub-base, proper edge restraint, jointing sand maintenance) lasts 25–40 years; concrete block colour fades within 5–15 years but clay pavers retain colour for 50+ years
• Tarmac lifespan — a full 3-layer system (base + binder + wearing course on 200mm Type 1 sub-base) lasts 20–25 years; a 2-layer system on 150mm sub-base lasts 15–20 years; a single-layer overlay onto an existing surface lasts only 5–10 years
• Resin bound lifespan — a properly built system on a sound permeable base lasts 15–25 years, with premium UV-stable (aliphatic polyurethane) resin holding colour for 15+ years versus 5–10 years for standard resin before visible yellowing
• Permeable vs impermeable — permeable block paving (BS 7533-13), resin bound on a permeable base, and porous asphalt all pass the SuDS test without needing a separate soakaway or drainage-to-lawn arrangement; standard sealed block, standard tarmac, and resin bonded do not
• Sub-base is the load-bearing element for all three — for block paving and tarmac this means correct Type 1 MOT depth and compaction; for resin bound, the wearing surface (5–18mm) sits on a porous asphalt or open-graded base that is doing the structural work, and skimping on that base causes failure within 2–5 years regardless of resin quality
• Cost per m² (2026, indicative, 50m² driveway) — block paving £80–£220/m² depending on block type (standard concrete to clay paver); tarmac £45–£100/m² depending on layer specification; resin bound £75–£120/m²
• Reset vs replace — block paving can be lifted, re-bedded, and re-jointed without buying new blocks (the most common renewal need is joint loss and edge settlement); tarmac can be overlaid or patched but patches remain visibly distinct; resin bound can have its wearing layer stripped and replaced without disturbing the base, extending total system life to 30–40 years
• Speed of installation — tarmac is fastest (1–2 days for a 60m² drive); block paving and resin bound both take longer due to more labour-intensive laying (resin bound: 50–80m²/day for a two-person team)
• Marshalls Register / manufacturer-backed guarantees — available for block paving (10-year Marshalls Product and Installation Guarantee via Register Approved Installers); tarmac and resin generally rely on the contractor's own workmanship guarantee rather than a manufacturer-backed scheme

Quick Reference Table

Detailed Guidance

Block paving — the long-life, high-kerb-appeal option

Block paving installed to BS 7533-3 on a proper sub-base (150–200mm compacted Type 1 MOT, 30–40mm sharp sand bedding course, concrete-haunched edge restraints) is the most durable of the three mainstream options, commonly lasting 25–40 years before any significant renewal work. Its main advantage over tarmac and resin is repairability: individual sunken or damaged areas can be lifted, the sub-base and bedding sand made good, and the same blocks re-laid — a genuinely different proposition to tarmac patching, which always leaves a visible line, or resin bound repair, where patches are visible against the surrounding surface.

The trade-off is cost and installation time. A block-paved drive takes several days longer to lay than tarmac or resin bound of the same area because of the labour-intensive unit-by-unit laying process, and concrete block products cost meaningfully more per m² than tarmac. Clay pavers (effectively engineering bricks used as a paving unit, to BS EN 1344 Class 1) sit at a further premium — 2–3× the cost of concrete equivalents — but hold colour for 50+ years against 5–15 years for concrete block, which fades and can be resolved by selective replacement rather than full resurfacing. For SuDS compliance, permeable block paving (BS 7533-13, laid with open joints on a no-fines sub-base) avoids the planning-permission trigger without changing the visual result significantly from standard block.

Resin bound — the modern, permeable middle ground

Resin bound surfacing (aggregate fully coated in a two-pack polyurethane resin, trowelled to 15–18mm depth onto a primed permeable base) has become the default recommendation for many domestic driveways where SuDS compliance and a contemporary finish both matter, because it is permeable by construction rather than requiring a separate drainage arrangement the way sealed block or tarmac do. See resin bound paving guide and resin bonded vs resin bound for full construction detail — resin bound should never be confused with resin bonded, a different (impermeable) product that looks similar at a glance but fails the SuDS test.

The critical specification point is the base. Resin bound is a wearing surface, not a structural layer — it must sit on a sound, permeable base such as porous asphalt or an open-graded concrete/Type 3 aggregate. Installations that lay resin bound over an inadequate or non-permeable base fail within 2–5 years through cracking or delamination, regardless of resin quality. Resin choice also matters for longevity: premium UV-stable aliphatic polyurethane resin holds colour clarity for 15+ years, while standard polyurethane resin visibly yellows within 5–10 years on south-facing, exposed driveways — a modest cost difference (roughly £20–£40/m²) with a significant visual outcome over the system's life.

Tarmac — the fastest, lowest-cost option for larger areas

Tarmac (bituminous macadam) remains the most cost-effective option per square metre, particularly for larger driveways, and installs faster than either alternative — a 60m² driveway can typically be laid in 1–2 days against several days for block paving. Its main limitation is lifespan and appearance: a properly specified 3-layer system (base course + binder course + wearing course on 200mm Type 1 sub-base) lasts 20–25 years, but the same "tarmac" label is often applied to a single-layer overlay onto an existing, unprepared surface that lasts only 5–10 years — the specification gap between these two builds is the single biggest pricing trap in tarmac quoting, and customers comparing quotes need this explained clearly.

Tarmac is impermeable by default and therefore triggers the SuDS/GPDO planning threshold over 5m² unless drained to a permeable area or replaced with porous asphalt (a permeable variant using an open-graded aggregate mix). Colour options exist (pigmented binder, coloured aggregate) at a 30–50% cost premium over standard black, but pigment fades within 5–7 years unless colour-stable aggregate is also specified. Maintenance is straightforward (annual jet wash, prompt treatment of oil spills, which dissolve bitumen) and a worn but structurally sound surface can be extended 10–15 years by planing and overlay at roughly half the cost of full replacement — but only where cracking is limited and the structural layer beneath is sound; alligator cracking, rutting over 25mm, or exposed binder across more than 20% of the area means full replacement is needed.

The SuDS/planning permission question — always check first

Before quoting any of the three materials for a front driveway over 5m², establish whether the customer wants (or needs) a permeable, GPDO-compliant surface. This isn't optional guidance — it determines which specification within each material family is legally usable without a planning application: permeable block paving or standard block draining to a permeable area, resin bound on a permeable base (not resin bonded), or porous asphalt rather than standard tarmac. Getting this wrong exposes the customer to planning enforcement and the contractor to a difficult conversation about who pays to lift a non-compliant surface. See suds regulations driveways for the full compliance routes and documentation requirements.

How to frame the recommendation to a customer

A useful way to frame the choice for a customer who has no strong preference: ask how long they expect to stay in the property and how much weight they put on appearance versus budget. A customer staying long-term with a reasonable budget and an eye on kerb appeal is usually best served by block paving; a customer wanting a modern look with SuDS compliance built in and a mid-range budget is well served by resin bound on a properly specified base; a customer prioritising lowest capital cost, larger area coverage, or fastest turnaround (e.g. before a house sale) is usually best served by a correctly specified tarmac build. In all three cases, the sub-base specification — not the surface material — is what determines whether the driveway meets its stated lifespan.

Frequently Asked Questions

Which of the three is cheapest to maintain over 20 years?

Block paving, on a whole-life basis, usually comes out ahead despite the higher upfront cost, because failures are localised and repairable (lift, re-bed, re-joint) rather than requiring resurfacing. Tarmac needs resealing around 5–7 years for appearance and full resurfacing or major overlay within 15–25 years. Resin bound needs the least routine maintenance day-to-day but the wearing layer itself has a defined life (8–15 years before visible aging) even though the base underneath can outlast it by decades.

Can I lay resin bound directly over existing block paving to save cost?

No. The joints between the blocks telegraph through the resin surface and cause cracking. The correct route is to remove the block paving, assess and retain or replace the sub-base, lay a new permeable binder course, then apply resin bound. Some contractors offer a thicker resin "overlay" system directly onto old block paving, but this typically fails within 5–8 years and isn't a genuine long-term solution.

Does tarmac ever qualify as SuDS-compliant without planning permission?

Standard black tarmac does not — it's impermeable. Porous asphalt (an open-graded tarmac mix designed to let water through to a permeable sub-base) does qualify as a permeable surface under GPDO Class F, and is the correct route for a customer who specifically wants a tarmac-style finish while remaining compliant without a planning application.

Is block paving always the most expensive option?

Not always — standard concrete block paving can come in close to a well-specified tarmac drive on cost, particularly for smaller areas where tarmac's per-m² economics are less favourable (mobilisation and plant costs are spread over less area). Clay paver block paving is reliably the most expensive of the three, and resin bound typically sits between standard concrete block and full clay paver pricing.

What's the single most common cause of premature driveway failure across all three materials?

An under-specified sub-base. Whether it's block paving on 50–100mm of sub-base against a 150–200mm specification, a single-layer tarmac overlay sold as a full driveway, or resin bound laid on a non-permeable or inadequately prepared base, the pattern is the same: the visible surface finish is not what fails first — the structure underneath it is, typically within 3–5 years of an under-specified installation versus 15–40 years for a correctly built one.

Regulations & Standards

• Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2, Part 1, Class F (as amended 2008) — the SuDS threshold requiring planning permission for impermeable front driveways over 5m² unless drained to a permeable area

• BS 7533-3 — code of practice for the construction of pavements of clay, natural stone or concrete block paving

• BS 7533-13 — guide for the design of permeable pavements constructed with concrete paving blocks and flags, and reinforced grass surfaces

• BS EN 1344 — clay pavers; specification and test methods (relevant to Class 1 clay paver block selection)

• Building Regulations Approved Document H, Section 3 — surface water drainage discharge hierarchy: infiltration, watercourse, surface water sewer, combined sewer (last resort)

• BRE Digest 365 — soakaway design and sizing methodology, relevant where runoff is directed to a soakaway rather than a permeable surface

• Planning Portal — Householder permitted development: driveways — official guidance on the GPDO 5m² SuDS rule

• Interpave — Permeable Paving — UK concrete block paving industry association technical guidance

• Marshalls plc — Driveway product and installer guidance — block paving and resin product specification

• Mineral Products Association — Asphalt guidance — tarmac/asphalt specification and layer thickness guidance

• suds regulations driveways — the 5m² GPDO planning rule, compliance routes, and soakaway sizing

• resin bonded vs resin bound — detailed comparison of the two resin surfacing types and why they are often confused

• block paving installation — full BS 7533-3 installation specification for block paving

• tarmac driveway installation — layer specification, temperature window, and edge detailing for tarmac

• marshalls register contractors — the manufacturer-backed guarantee scheme available for block paving installers