How to Price a Driveway Resurfacing: Tarmac Overlay, Block Re-Lay and Resin Re-Coat

Quick Answer: A tarmac overlay on an existing sound base prices £42–£75/m² in 2026 for a typical 50m² domestic driveway. Block paving lift-and-relay prices £45–£85/m² where the existing blocks can be reused; £75–£120/m² where new blocks are needed. Resin re-coat over an existing resin-bound surface prices £55–£90/m². Full reconstruction (excavate, sub-base, surface) prices £85–£160/m² regardless of finish. The 2008 sustainable urban drainage (SUDS) requirement under the Town and Country Planning (General Permitted Development) Order means resurfacing over 5m² of impermeable area triggers planning consent unless drainage to a permeable area is provided — a major pricing consideration on front driveways.

Summary

Driveway resurfacing is a high-volume residential category covering everything from a £400 patch repair to a £15,000 full driveway reconstruction. The pricing depends almost entirely on whether the existing sub-base and edge restraints are sound. If they are, an overlay or re-lay is feasible at moderate cost. If they're not, the only honest answer is full reconstruction — and trying to cut corners by overlaying a failing base is the #1 reason customer claims arise 2–4 years later.

The 2008 SUDS requirement is the unsung pricing driver. Under the Town and Country Planning (General Permitted Development) (Amendment) Order 2008, any new or replacement driveway over 5m² in front of a dwelling that uses an impermeable surface (impervious tarmac, sealed block paving) requires planning permission unless it drains to a permeable area within the property's boundaries. In practice, this means resin-bound (porous) surfaces, permeable block paving, or gravel surfaces all bypass the planning trigger; impervious tarmac and standard block paving with hardstanding kerbs do not. For pricing, this often pushes the choice toward resin or permeable block — adding £10–£25/m² over basic tarmac.

The three resurfacing categories work as follows. Tarmac overlay is appropriate where the existing tarmac base is structurally sound but the surface is cracked, sunken or worn. The new wearing course is laid over a tack-coated base, typically 25–40mm in 6mm AC10 hot-rolled asphalt. Block paving re-lay uses existing blocks where they're undamaged — typical scope is lift, clean, fix the failed sub-base, re-lay with fresh laying course and joint sand. Resin re-coat lays a new resin-and-aggregate surface over an existing resin or asphalt base, usually 12–18mm thick, achieving SuDS compliance.

Key Facts

• Tarmac overlay on sound base — £42–£75/m² (25–40mm wearing course)
• Tarmac full reconstruction — £85–£140/m² (excavate, sub-base, binder course, wearing course)
• Block paving lift and re-lay (existing blocks) — £45–£85/m²
• Block paving with new blocks — £75–£120/m²
• Block paving full reconstruction — £95–£160/m² (excavate, sub-base, lay)
• Permeable block paving (Marshalls Drivesett Argent Priora) — £85–£140/m²
• Resin-bound surface (12–18mm over existing) — £55–£90/m² overlay; £85–£140/m² full
• Resin-bonded surface (loose-aggregate look) — £45–£75/m²
• Pattern-imprinted concrete — £75–£120/m² fully laid
• Gravel driveway — £25–£55/m² (membrane, sub-base, gravel)
• Sub-base specification (MOT Type 1) — 150mm compacted minimum for cars, 250mm for vans
• Tarmac binder course depth — 50–80mm
• Tarmac wearing course depth — 25–40mm AC10 surf
• Block paving sand bedding — 40mm laying course of sharp sand
• SUDS compliance threshold — driveway >5m² requires planning unless permeable
• Building Regulations Part H3 — surface water disposal
• BS 7533-3:2005 — Pavements constructed with clay, natural stone or concrete pavers (block paving)
• BS 594987:2015 — Asphalt for roads and other paved areas
• BS 7533-13:2009 — Guide for the design of permeable pavements

Quick Reference Table

Detailed Guidance

Diagnosis first — what's actually wrong

Before quoting any resurfacing, walk and inspect:

• Edge restraints — kerbs and edging blocks. If these have moved, the substrate is failing
• Settlement and dishing — sunken areas indicate sub-base failure (typically inadequate compaction or absent geotextile membrane)
• Cracking pattern — alligator cracking (network of fine cracks) = base failure; longitudinal cracks = settlement; reflective cracks over old joints = base movement
• Drainage — standing water after rain indicates failed falls or blocked outlets
• Tree roots — proximity to mature trees and visible root lift means the sub-base will be disturbed again within 3–5 years if not addressed
• Fuel staining — diesel and petrol degrade tarmac binder; oil staining indicates leakage (separate issue but often discovered during driveway work)

If the sub-base is failing, an overlay is a 2–4 year fix at best. Honest pricing means recommending full reconstruction and explaining the cost difference. Quoting an overlay on a failing base is short-term thinking.

Tarmac overlay — when it's appropriate

Tarmac overlay (also called "tar-and-chip" or "asphalt overlay") is appropriate when:

• The existing tarmac base is sound (no major cracking, no settlement)
• The surface is worn, faded, or has minor surface defects
• The drainage is functional (no standing water)
• The kerbs are intact

Procedure:

1. Power-wash and dry the existing surface
2. Localised patch any failed sections with cold-mix or hot-mix repair
3. Apply tack coat (bituminous emulsion) at 0.4–0.8 litres/m²
4. Lay 25–40mm of AC10 surf wearing course with mechanical lay (Bobcat or paver)
5. Compact with vibrating roller (typically 1.5–3 tonne)
6. Edge work — flush in to kerbs, dropper to dropped kerb, manhole adjustments

Cost breakdown per m² for a 50m² overlay:

• Materials: AC10 surf at 6mm (£8–£12/m²), tack coat (£1–£2/m²), patch repair allowance (£3–£6/m²): £12–£20/m²
• Labour (3-person crew, 1 day for 50m²): £15–£25/m²
• Plant: paver, roller, hot-box, tipper (amortised): £6–£10/m²
• Profit and overhead: £8–£15/m²
• Sell price: £42–£75/m²

For larger areas (>80m²), economies of scale bring this down to £38–£65/m² because plant and crew time amortise across more area.

Tarmac full reconstruction — when overlay won't work

Full reconstruction is needed when the sub-base has failed (cracking, settlement, soft spots) or where the existing tarmac doesn't exist (gravel or grass-to-tarmac conversion).

Sub-base build-up:

1. Excavate to formation level (typically 250–350mm below finished surface)
2. Geotextile membrane to prevent sub-base contamination from sub-grade
3. MOT Type 1 sub-base at 150–200mm thickness for car-only use, 250–300mm for vans/4×4s
4. Compaction to 95% MDD (modified Proctor density) using vibrating plate or roller
5. Binder course (AC20 binder) at 50–80mm
6. Compaction
7. Wearing course (AC10 surf) at 25–40mm
8. Final compaction

Programme: 3–5 days for a typical 50m² driveway.

Cost: £85–£140/m² for full reconstruction. The materials are similar to overlay but the labour is much greater (excavation, subbase install, binder course in addition to wearing course).

Block paving lift and re-lay — the granular product

Block paving is unique in that the surface units (blocks) are reusable. If the failure is in the sub-base or laying course but the blocks themselves are intact, the lift-and-relay is the cost-effective approach.

Procedure:

1. Lift blocks carefully (mark out direction first to ensure correct re-lay), stack on edge for cleaning
2. Excavate failed laying course and sub-base
3. Inspect sub-base — re-form with new MOT Type 1 if failed
4. Compact to 95% MDD
5. Lay 40mm of sharp sand bedding (laying course)
6. Re-lay blocks in original pattern, kibbled in
7. Compact with whacker plate
8. Joint sand — kiln-dried sand brushed into joints
9. Final compaction with whacker plate over a rubber mat

Cost: £45–£85/m² where existing blocks are reusable (typical for blocks under 8 years old in good condition).

If 20–40% of blocks are damaged (chipped, cracked, sunken beyond repair), allow for new blocks at £15–£35/m² of replacement area.

For block paving with non-matching new blocks (e.g. a new pattern, or replacements where old colour is discontinued), the visual difference can be significant. Recommend either full reconstruction with new blocks throughout, or a "feature panel" approach where the new blocks form a defined area rather than scattered repairs.

Resin-bound and resin-bonded — the SuDS-compliant finish

Two distinct products:

• Resin-bound — pre-mixed resin and aggregate trowelled onto a prepared base. Smooth finish, fully porous (achieves SuDS compliance). Aggregate locked into resin matrix. £55–£140/m² fitted depending on overlay/full lay.
• Resin-bonded — resin applied to a base, loose aggregate scattered onto wet resin. Loose-aggregate finish, partially porous. £45–£75/m² fitted.

For SuDS compliance, resin-bound is the right choice. Standard recipe is 6–8mm aggregate at 80kg/m² with 2-component MMA or polyurethane resin at 1.5–2.0 kg/m².

Surface preparation is critical:

• Existing tarmac: clean, prime with manufacturer-specified primer
• Existing concrete: shot-blast or scarify to expose aggregate, prime
• New base: 50mm AC10 wearing course or 100mm of 8N concrete

Lifespan: 12–25 years depending on traffic and aggregate quality. UV stability of the resin determines colour fastness — high-end systems carry 10-year colour warranties.

Pattern-imprinted concrete — the budget aesthetic

Pattern-imprinted concrete (PIC) uses a coloured concrete mix poured to a flat slab, then imprinted with rubber mats while still plastic to create a stone or brick effect. £75–£120/m² fitted typical.

Pros: low maintenance, durable, distinctive aesthetic.

Cons: not SuDS-compliant (impermeable), prone to cracking at movement joints, sealer needs renewing every 3–5 years to maintain colour and prevent surface erosion.

For a customer wanting a unique aesthetic on a back garden patio (where SuDS doesn't apply) or a side driveway with permeable run-off provision, PIC is competitive. For a front driveway requiring SuDS compliance, it's the wrong product.

Gravel driveway — the budget option

Gravel is the budget driveway: cheap to install, naturally permeable (SuDS-compliant), but high-maintenance (top-up annually, weed control, edge containment).

Build-up:

• Geotextile membrane on prepared sub-grade
• 100mm MOT Type 1 sub-base, compacted
• 50mm of decorative gravel (10–20mm angular for resistance to spreading)
• Edge restraints (timber, metal or stone)

Optional: geo-cell containment grids that hold gravel in place under tyre traffic. Adds £8–£15/m² but transforms the longevity.

Cost: £25–£55/m² for basic gravel; £35–£70/m² with cell containment.

Drainage and SUDS — the planning trigger

The Town and Country Planning (General Permitted Development) (Amendment) Order 2008 introduced the SUDS planning trigger:

• Front driveways >5m²: planning permission required UNLESS drainage to a permeable area within the property's boundaries (e.g. lawn, soakaway)
• Permeable surfaces (resin-bound, permeable block, gravel) are exempt from the trigger
• Impermeable surfaces (standard tarmac, sealed block paving, concrete) trigger planning unless drainage solution is in place

For pricing, this is decisive. A quote for impermeable tarmac on a front driveway must include either:

• Soakaway construction (£280–£780 depending on size)
• Permeable strip detailing (perforated kerbs, filter strip)
• Drainage to a back garden soakaway via channel drains

Or alternatively, recommend a permeable surface (resin or permeable block) and avoid the planning hassle.

Edge restraints — the structural detail

Block paving and tarmac surfaces both need edge restraints to prevent lateral movement of the surface course. Three options:

• Concrete kerbs — solid concrete or proprietary edging (Marshalls Keykerb, Brett Allura). £45–£85/m linear. Most durable.
• Timber edging — 100×50mm tanalised pine. £18–£35/m. Cheaper but limited life (8–15 years).
• Metal edging — galvanised steel or aluminium strip. £25–£50/m. Used for resin-bound to define crisp edges.

Edge restraints must be installed before the surface course. Retrofitted edges in existing failed driveways usually require lifting an edge strip of the existing surface to allow proper foundation.

Frequently Asked Questions

How much does it cost to resurface a driveway in the UK 2026?

Tarmac overlay on a sound base: £42–£75/m² (£2,100–£3,800 for typical 50m²). Tarmac full reconstruction: £85–£140/m² (£4,200–£7,000 for 50m²). Block paving lift and re-lay: £45–£85/m². Resin-bound overlay: £55–£90/m². Full reconstruction with permeable block: £95–£160/m². The biggest variable is whether the existing sub-base is sound enough for an overlay or whether full reconstruction is needed.

Do I need planning permission for a new driveway?

For front driveways over 5m²: yes, unless the surface is permeable (resin-bound, permeable block, gravel) OR there's drainage to a permeable area within the property boundary. This is the SUDS rule introduced in 2008. For back garden hardstanding, planning isn't typically triggered unless the area is large or close to a boundary. Always check with the local authority before committing to an impermeable front driveway.

Is resin-bound driveway worth the extra cost?

For a front driveway needing SuDS compliance: yes, because it avoids planning consent. Aesthetically, resin-bound gives a smooth high-end finish that block paving and tarmac don't match. The 12–25 year lifespan is competitive with high-quality tarmac. The downside is repair difficulty — patches don't blend invisibly, and resin sealing needs to be done in dry weather windows. For a back garden surface where permeability isn't critical, tarmac or block paving is more cost-effective.

Can I lay tarmac over an existing driveway?

Yes, if the existing base is sound (no major cracking, no settlement, drainage works). The overlay is 25–40mm of new AC10 wearing course over a tack coat. If the existing base is failing, an overlay will simply reflect the failure to the new surface within 1–3 years. For failing bases, the only honest answer is full reconstruction.

How long does a tarmac driveway last?

Typically 15–25 years for a properly installed driveway with sound sub-base. The wearing course shows surface defects (faded colour, fine cracking) within 8–15 years and benefits from a re-coat at that point. The sub-base, if properly installed, lasts 30–50 years and survives multiple wearing-course replacements. Heavy use (commercial vehicles, frequent washing, parking on the same spot daily) accelerates surface wear.

Regulations & Standards

• Town and Country Planning (General Permitted Development) (Amendment) Order 2008 — SUDS planning trigger for front driveways

• Building Regulations Approved Document H3 — surface water disposal

• BS 7533-3:2005 — Pavements constructed with clay, natural stone or concrete pavers (block paving design)

• BS 7533-13:2009 — Guide for the design of permeable pavements

• BS 594987:2015 — Asphalt for roads and other paved areas

• BS 4987-1:2005 — Coated macadam for roads and other paved areas

• The Highways Act 1980 — applies to dropped kerb works

• Section 184 Highways Act 1980 — vehicle crossover (dropped kerb) consent

• GOV.UK — Permeable surfaces for driveways — SUDS guidance for homeowners

• Marshalls Plc — Driveways technical — manufacturer technical guidance

• Interpave — Permeable Concrete Pavement Guide — permeable paving design

• Mineral Products Association — Asphalt for driveways — asphalt specification

• Resin Bound Surfacing Specialists Association — resin technical guidance

• new block paving installation pricing — for first-time block install

• concrete driveway pricing including pattern imprinted — for concrete options

• resin-bound driveway pricing in detail — for the resin product specifics

• dropped kerb installation needed for new vehicle crossings — for the access detail

• driveway drainage and SUDS detailing — for the SUDS compliance technical detail