--- title: "4-Kerb Wide Single Opening (3.66m Flat + 2 Droppers) Cost Breakdown & NRSWA Spec [2026/27] | DroppedKerbCalculator.co.uk" source_url: "https://droppedkerbcalculator.co.uk/kerb-size/4-kerb-wide-single" retrieved_by: "AnswerRail Edge Engine v1.1.0-parity-v20 (https://answerrail.com)" level_of_detail: "standard" token_payload_reduction: "87.6%" raw_html_bytes: 115487 compiled_body_bytes: 14276 entities_extracted: 6 currency_recall_static_html: "98%" monitored_currency_tokens: 42 link_recall_static_html: "100%" monitored_content_links: 26 omitted_dynamic_states: ["non_default_tab_panels", "volume_slider_tiers"] conversion_notes: "Origin renders alternate tabs and volume pricing sliders via client-side JavaScript; serving default static AST state." rfc_compliance: "RFC 9110" last_verified_at: "2026-10-17T12:22:07.639Z" cache_age_seconds: 0 origin_cache_control: "public, max-age=0, must-revalidate" --- > **Canonical Source:** [https://droppedkerbcalculator.co.uk/kerb-size/4-kerb-wide-single](https://droppedkerbcalculator.co.uk/kerb-size/4-kerb-wide-single) > > *Full Section 184 engineering specification, Bill of Quantities, and 2026/27 UK NRSWA groundworks pricing (£1,750 – £2,500) for a 5.49m (4 flat + 2 ramp kerbs) vehicle crossover.* ### Entity: DroppedKerbCalculator.co.uk | Property | Detail | | :--- | :--- | | **Type** | WebSite | | **Name** | DroppedKerbCalculator.co.uk | | **Description** | Independent UK Highways Act 1980 Section 184 Vehicle Crossover Eligibility & Cost Benchmark Engine... | ### Entity: UK Dropped Kerb Eligibility & Cost Calculator [2026] | Property | Detail | | :--- | :--- | | **Type** | WebApplication | | **Name** | UK Dropped Kerb Eligibility & Cost Calculator [2026] | ### Organization: DroppedKerbCalculator.co.uk | Field | Value | | :--- | :--- | | **Organization** | DroppedKerbCalculator.co.uk | | **Official Website** | https://droppedkerbcalculator.co.uk | | **Entity Verification (sameAs)** | [Entity Verification](https://www.gov.uk/apply-dropped-kerb) | ### Entity: UK Dropped Kerb Council Fees, Minimum Driveway Depths and NRSWA Costs 2026 | Property | Detail | | :--- | :--- | | **Type** | Dataset | | **Name** | UK Dropped Kerb Council Fees, Minimum Driveway Depths and NRSWA Costs 2026 | | **Description** | Comprehensive 2026 dataset of 27 UK municipal and county highway authority Section 184 application fees, inspection charges, processing turnaround times, and driveway dimension thresholds.... | ### Frequently Asked Questions (FAQ) **Q: How wide is a 4-kerb dropped kerb in metres?** > A: A 4-flat-kerb crossover provides a 3.66m level lowered throat (4 × 915mm BS EN 1340 precast bullnose units) plus 2 × 915mm tapered transition ramp kerbs, creating a 5.49m total highway footway opening. **Q: How much does a 5.49m (4-kerb) dropped kerb cost in 2026/27?** > A: In 2026/27, NRSWA-accredited streetworks excavation and reinstatement for a 5.49m (4 flat + 2 ramp) crossover typically costs £1,750 – £2,500, excluding your local council's non-refundable Section 184 application fee (£150–£480). NRSWA BS EN 1340 Cross-Section Specification • 2026/27 Schedule # 4-Kerb Wide Single Opening (3.66m Flat + 2 Droppers) — 2026/27 UK Cost & Specification Ideal when vehicular approach is restricted by narrow roads, on-street parking opposite, or where extra steering margin is required. Flat Dropper Kerbs4 Units915mm BS EN 1340 precast Ramped Transition Kerbs2 Units1 Left (DL1) + 1 Right (DR1) Total Crossing Width5.49m3.66m flat throat NRSWA Groundworks£1,750 – £2,500Excludes council permit fee ## Standard Highway Authority Excavation & Sub-Base Specification [Download 5.49m Bill of Quantities & 1:100 Plan (£19) →](/application-pack?width=5.49) **Recommended Property & Vehicle Profile** Wide single driveways, larger SUVs, estates, and angle-of-approach turning. **Sub-Base & Surfacing Layers** 4 flat kerbs (915mm each) + 2 ramped droppers. Total footway opening 5.49m. ## Calculate Total Cost & Council Approval for a 5.49m Crossover Highways Act 1980 Section 184 Evaluation Engine ## UK Dropped Kerb Eligibility & Cost Calculator Statutory 4.8m driveway depth rule, council application charges, and NRSWA groundworks pricing. Step 1Step 2Step 3 1 ### Location & Road Classification Property Postcode Local Highway AuthorityKent County CouncilSurrey County CouncilEssex County CouncilHampshire County CouncilHertfordshire County CouncilBirmingham City CouncilManchester City CouncilLeeds City CouncilBristol City CouncilLiverpool City CouncilSheffield City CouncilNottinghamshire County CouncilLancashire County CouncilStaffordshire County CouncilDevon County CouncilNorfolk County CouncilLondon Borough of BarnetLondon Borough of BromleyLondon Borough of CroydonLondon Borough of EalingBradford Metropolitan DistrictLeicestershire County CouncilCambridgeshire County CouncilOxfordshire County CouncilGloucestershire County CouncilWarwickshire County CouncilCheshire East CouncilApp Fee: £185 • Inspection: £120 Road Classification (Town & Country Planning Trigger) Unclassified Residential RoadPermitted Development (No £258 planning fee) Classified A, B, or C RoadPlanning Permission required (+£258 fee) Charging an Electric Vehicle (EV) at Home?Calculate annual savings vs public charging & view Section 162 cable rules. 2 ### Driveway Dimensions & Opening Width Edit Step 2 Quick Vehicle & Bay Presets 🚗 City Hatch4.5m Bay🚙 Family SUV / EV4.8m Standard⚡ Tesla / Estate5.2m Comfort🚐 Large Van / 4x45.8m Deep Front Garden / Driveway Depth (Wall to Boundary)Statutory minimum: 4.8m in Birmingham City Council 5.2metres **Statutory Depth Criteria Satisfied (≥ 4.8m)**Meets standard UK perpendicular parking envelope without encroachment on public highway footway. Real UK Vehicle Bumper Clearance Check (5.2m Bay)Zero Overhang = ≥ 0cm VW Golf / CorsaLength: 4.28m+92cm clear ✓ Tesla Model YLength: 4.75m+45cm clear ✓ Range Rover / EV9Length: 5.00m+20cm clear ✓ Transit CustomLength: 5.34m\-14cm overhang ✗ Kerb Crossover Configuration & Dropped Kerb Count Standard Single Driveway (3 Flat Kerbs + 2 Ramps)4.5m Groundworks: £1,450 – £1,950 Extended Single Driveway (4 Flat Kerbs + 2 Ramps)5.4m Groundworks: £1,850 – £2,400 Double Driveway Opening (5 Flat Kerbs + 2 Ramps)6.3m Groundworks: £2,300 – £3,100 Heavy-Duty Commercial SUV/Van Cradle5.4m Groundworks: £2,700 – £3,600 Site Frontage Width (Road Boundary)3.6m Interactive 2D CAD Engineering Blueprint Manual for Streets S.184 Plan 📐 Top-Down Plan View (4.8m Depth & Sightlines)🛠️ Side Cross-Section (NRSWA 230mm–350mm Sub-Base & Kerb Haunch) 3 ### Footway Obstructions & Section 163 Drainage Select any existing street features that intersect your proposed crossover envelope: Street Tree on Footway (<2m)BS5837 Root Protection survey (+£400–£850 hand-dig) Lamppost / Telegraph Pole (<1m)Relocation required (+£1,200–£2,200) Manhole / Telecom Cover in WayHeavy-duty Class B125 frame (+£300–£600) Within 10m of Road JunctionSevere visibility splay refusal risk Driveway Slopes Towards Public Road (Highways Act s.163)Law prohibits surface water draining onto highway. Requires ACO linear drainage channel + soakaway (+£550–£950). Section 184 Approval OddsHIGH CHANCE 94% Property strongly satisfies Section 184 statutory criteria. Authority: Birmingham City Council ✓Depth of 5.2m satisfies the standard 4.8m Section 184 vehicle clearance without public footway encroachment. ✓Unclassified residential street enjoys Permitted Development rights (no formal planning permission fee required). ### Itemised 2026/27 Project Cost Estimate Council Non-Refundable App Fee£185 Council Highways Inspection Fee£120 NRSWA Groundworks (Excavation & Tarmac)£1,850 – £2,400 Private NRSWA Self-Lay Turnkey£2,155 – £2,705 Council Direct Term Contractor:£3,285 (14–18 wk wait) ✓ Private NRSWA Contractor Self-Lay:Save ~£580 • 2–4 wk build Spread cost from:~£60–£75/mo [Compare UK Home Improvement Finance →](https://www.awin1.com/cread.php?awinmid=128257&awinaffid=3035391&clickref=kerb_finance_strip&p=https%3A%2F%2Fwww.checkatrade.com)36m est. Subject to status & affordability. Representative APR applies. 🔗 Copy Shareable Calculation Spec Link EV Home Charging AdvantageSave ~£1,080/yr Charging off-peak overnight (7p/kWh) vs public rapid (79p/kWh) pays off the dropped kerb in ~18 months.Highways Act 1980 s.162 prohibits trailing cables across public footways. Free Contractor Quote Routing #### Get Up to 3 Fixed Quotes from Vetted NRSWA Contractors Compare council-approved streetworks contractors licensed in Birmingham City Council. I agree to receive fixed quotes from up to 3 vetted NRSWA streetworks contractors under UK GDPR & PECR. (Data Controller: DroppedKerbCalculator.co.uk • ICO Reg: ZC136598).Request Vetted Contractor Quotes → #### NAVRE.ai Smart Recommendation Bayesian Offer Routing [ 1\. Checkatrade Vetted Kerb SpecialistsInspected Instantly browse background-checked, £10,000 guaranteed local driveway & crossover contractors. ](https://www.awin1.com/cread.php?awinmid=128347&awinaffid=3035391&clickref=kerb_calc_thankyou&p=https%3A%2F%2Fwww.checkatrade.com) 2\. £19 Section 184 Pre-Application Site DossierInstant PDF Includes 1:1250 location boundary plan checklist, visibility splay diagram, and statutory BoQ. Instant Unlock & Generate (£19) → Free baseline guidance is available at [GOV.UK (apply-dropped-kerb)](https://www.gov.uk/apply-dropped-kerb); our £19 Dossier adds your custom 5.2m × 5.4m CAD plan, NRSWA Bill of Quantities, and council sightline defence. 3\. Home Battery & EV Solar Storage (0% VAT)0% UK VAT Pair your driveway charger or off-peak home supply with certified portable LFP home storage: [Bluetti UK LFP SystemsView →](https://www.awin1.com/cread.php?awinmid=32273&awinaffid=3035391&clickref=kerb_ev_battery_bluetti&p=https%3A%2F%2Fuk.bluetti.com)[EcoFlow Smart TechView →](https://www.awin1.com/cread.php?awinmid=51797&awinaffid=3035391&clickref=kerb_ev_battery_ecoflow&p=https%3A%2F%2Fuk.ecoflow.com) 4\. ACO HexDrain & Section 163 Drainage KitBS EN 1433 Requires 5.4m linear ACO HexDrain / Brickslot intercept channel under Highways Act 1980 s.163 to prevent surface water runoff onto the public footway. [View BS EN 1433 Channel Kits & Interceptors →](https://www.awin1.com/cread.php?awinmid=127801&awinaffid=3035391&clickref=kerb_aco_drainage&p=https%3A%2F%2Fwww.drainagesuperstore.co.uk) **Pre-Application Statutory Notice:** Indicative desktop assessment under Highways Act 1980 s.184. Does not replace an on-site Highway Officer inspection or PAS 128 utility scan. 94% Odds Birmingham City Council (5.2m)£2,155–£2,705 [Quotes & £19 Pack ↓](#lead-capture-card) ## 4-Kerb Wide Single Opening (3.66m Flat + 2 Droppers) — Technical Q&A ### How wide is a 4-kerb dropped kerb in metres? A 4-flat-kerb crossover provides a 3.66m level lowered throat (4 × 915mm BS EN 1340 precast bullnose units) plus 2 × 915mm tapered transition ramp kerbs, creating a 5.49m total highway footway opening. ### How much does a 5.49m (4-kerb) dropped kerb cost in 2026/27? In 2026/27, NRSWA-accredited streetworks excavation and reinstatement for a 5.49m (4 flat + 2 ramp) crossover typically costs £1,750 – £2,500, excluding your local council's non-refundable Section 184 application fee (£150–£480). NAVRE.ai Next-Action Wall • RFC-001 Bayesian Routing ## Next Statutory Steps & Approved Streetworks Resources \[2026/27\] Protect your non-refundable council application fee, match vetted NRSWA contractors via Ranked & Ready, and check adjacent statutory triggers before excavating. Confidence: 96% • Ref: 4-kerb-wide-single Refusal Defence 01 • STATUTORY CAD DOSSIER ### Section 184 Pre-Application Site Dossier Scaled 1:1250 boundary plan checklist, 2.0m × 2.0m visibility splay diagram, Section 163 drainage calculation, and NRSWA contractor Bill of Quantities. £19£350 (Highway Consultant) [Download Site Dossier (£19) →](/application-pack)[Or view free baseline guidance at GOV.UK ↗](https://www.gov.uk/apply-dropped-kerb) 02 • RANKED & READY DISPATCH ### Vetted NRSWA Streetworks Quote Match Only SWQR-carded operatives carrying £5m–£10m Public Liability insurance can legally excavate a public footway under NRSWA 1991. Compare 3 fixed quotes. ✓ £0 Homeowner Quote Match • 27 Councils [Request 3 NRSWA Quotes →](/#calculator)[Browse Checkatrade Directory ↗](https://www.awin1.com/cread.php?awinmid=128347&awinaffid=3035391&clickref=navre_wall_4-kerb-wide-single_checkatrade&p=https%3A%2F%2Fwww.checkatrade.com) 03 • DRAINAGE & EV STORAGE ### Section 163 ACO Channels & EV Battery Rescue Order BS EN 1433 linear driveway intercept drains required for sloped front gardens, or lock in 7p/kWh off-peak EV power with 0% VAT portable home batteries. • ACO HexDrain & Class B125 Covers • Bluetti & EcoFlow LFP Home Storage [ACO Drains ↗](https://www.awin1.com/cread.php?awinmid=127801&awinaffid=3035391&clickref=navre_wall_4-kerb-wide-single_drainage&p=https%3A%2F%2Fwww.drainagesuperstore.co.uk)[EV Battery ↗](https://www.awin1.com/cread.php?awinmid=32273&awinaffid=3035391&clickref=navre_wall_4-kerb-wide-single_bluetti&p=https%3A%2F%2Fuk.bluetti.com) 04 • ⚖️ Party Wall Act 1996 s.1 & s.6 ### PartyWallChecker.co.uk Excavating a driveway crossover, boundary retaining wall, or kerb within 3m/6m of a neighbouring structure? Check Section 1 & Section 6 statutory notice rules and download a £24.99 Notice Pack. [Free 3m/6m Party Wall Checker ↗](https://partywallchecker.co.uk/#calculator)[Party Wall £24.99 Notice Pack ↗](https://partywallchecker.co.uk/notice-pack)[EcoFlow Delta Pro Home EV Backup ↗](https://www.awin1.com/cread.php?awinmid=51797&awinaffid=3035391&clickref=navre_wall_4-kerb-wide-single_ecoflow&p=https%3A%2F%2Fuk.ecoflow.com) Related UK Statutory Property Calculators (NAVRE Network): [BuildOverAgreement.co.uk (Part H4 Drains)](https://buildoveragreement.co.uk)•[SoakawayCalculator.co.uk (BRE 365 Crates)](https://soakawaycalculator.co.uk)•[PartyWallChecker.co.uk (Free 3m/6m Checker)](https://partywallchecker.co.uk/#calculator)•[Party Wall £24.99 Notice Pack](https://partywallchecker.co.uk/notice-pack)•[GardenOfficePower.co.uk (Part P SWA Cable)](https://gardenofficepower.co.uk)•[RSJCalculator.co.uk (Eurocode 3 Beams)](https://rsjcalculator.co.uk)•[HedgeHeight.co.uk (BRE 470 High Hedges)](https://hedgeheight.co.uk) ### Compare Other Kerb Width Configurations [Standard Single 3-Kerb 4.5m Crossover4.5m • £1,450 – £1,950](/kerb-size/standard-single-3-kerb-4-5m-crossover-cost)[Extended Single 4-Kerb 5.4m Crossover5.4m • £1,850 – £2,400](/kerb-size/extended-single-4-kerb-5-4m-crossover-cost)[Double Driveway 5-Kerb 6.3m Crossover6.3m • £2,300 – £3,100](/kerb-size/double-driveway-5-kerb-6-3m-crossover-cost)[Heavy-Duty Commercial SUV/EV Van Concrete Cradle5.4m • £2,700 – £3,600](/kerb-size/heavy-duty-commercial-van-suv-concrete-cradle-cost)[Shared Access Boundary Crossover (Joint Neighbour)7.3m • £1,150 – £1,600 per household (£2,300 – £3,200 total)](/kerb-size/shared-access-boundary-crossover-cost)[Minimum 2-Kerb Narrow Urban Crossover3.6m • £1,250 – £1,650](/kerb-size/minimum-2-kerb-narrow-urban-crossover-cost) ## Related UK Statutory, Planning & Building Regulations Calculators (Verified Edge Mesh) - **[RSJCalculator.co.uk](https://rsjcalculator.co.uk)** — Eurocode 3 (BS EN 1993) structural steel beam & Building Regs Part A padstone bearing sizer - **[BuildOverAgreement.co.uk](https://buildoveragreement.co.uk)** — Building Regs Part H4 sewer standoff & all 10 UK Water Authority build-over fee calculator - **[PartyWallChecker.co.uk](https://partywallchecker.co.uk)** — Party Wall etc. Act 1996 s.1/s.2/s.6 notice generator & 3m/6m foundation depth checker - **[SoakawayCalculator.co.uk](https://soakawaycalculator.co.uk)** — BRE Digest 365 stormwater crate volume & Building Regs Part H3 percolation calculator - **[DroppedKerbCalculator.co.uk](https://droppedkerbcalculator.co.uk)** — Highways Act 1980 s.184 vehicle crossing council fees & 4.8m driveway depth checker - **[GardenOfficePower.co.uk](https://gardenofficepower.co.uk)** — BS 7671 18th Edition 3-core SWA armoured cable voltage drop vs LiFePO4 solar calculator - **[HedgeHeight.co.uk](https://hedgeheight.co.uk)** — Part 8 Anti-Social Behaviour Act 2003 & BRE Digest 470 Action Hedge Height (AHH) calculator - **[CouncilCredit.co.uk](https://councilcredit.co.uk)** — Local Government Finance Act 1992 CTB1 closed-account Council Tax credit recovery & band audit --- ## AI Ingestion & Edge Optimization Provenance (AnswerRail Verified) - **Edge Delivery & Markdown Compilation:** [AnswerRail.com](https://answerrail.com) — Layer-7 AI Crawler Content Negotiation, `/llms.txt` & Byte-0 Schema Compiler - **Dedicated AI Markdown Subdomain:** https://ai.droppedkerbcalculator.co.uk/ - **Cryptographic Ingestion Certificate:** https://answerrail.com/verify/droppedkerbcalculator.co.uk - **Live Crawler & Referral Telemetry:** https://answerrail.com/stats/droppedkerbcalculator.co.uk