Sub-Core Ltd is a specialist highways engineering consultancy. We reduce project costs, minimise programme delays and improve buildability — through early statutory utility engagement, innovative design solutions and a team with decades of hands-on delivery experience.
From early-stage utility coordination to detailed highway design and compliant App 1/16 documentation — Sub-Core covers every stage of a highways project.
Early engagement with utility companies to identify conflicts, avoid costly diversions and minimise disruption to programme and budget.
Accurate, detailed and efficient ground information to inform design, reduce risk and give contractors the certainty they need to price effectively.
State-of-the-art digital modelling producing precise, coordinated drawings that improve contractor efficiency and reduce construction programme length.
Compliance-led documentation prepared to support utility diversion approvals, streamline authority agreements and keep programmes moving.
Innovative approaches that reduce overall project cost without compromising quality, safety or programme — delivering measurable, demonstrable savings.
Robust, practical and sustainable highway designs tailored to each project — from junction improvements to major new carriageway schemes.
Our value proposition is straightforward: by engaging early with statutory utilities and applying innovative design thinking, we consistently reduce overall project costs and minimise delays.
Motorway & trunk road improvements, new carriageways and junction upgrades for Tier 1 contractors.
New residential development requiring estate roads, utility connections and section agreements for developers and housebuilders.
Access roads, car parks and utility coordination for retail parks, logistics hubs and mixed-use development schemes.
Highway improvement schemes, active travel infrastructure and utility diversion programmes for county and unitary authorities.
Rail overbridge schemes, airport access and other nationally significant infrastructure requiring specialist highways input.
Large-scale statutory utility relocation programmes where early coordination and accurate records are critical to cost and programme.
Early engagement with all statutory undertakers identified and resolved multiple high-risk utility conflicts, avoiding extensive diversion costs and keeping the programme on track.
A redesign of the highway alignment, informed by detailed site survey and 3D modelling, resulted in a multi-million-pound saving by eliminating a major utility diversion requirement.
3D digital modelling of the full highway and utilities package improved contractor efficiency, reducing the construction programme length and enabling earlier opening to traffic.
We get involved at concept stage — engaging statutory utilities, reviewing existing records and identifying risks before they become programme problems.
Accurate topographic and ground investigation data forms the foundation of every design decision, reducing uncertainty and contractor risk.
2D and 3D designs optimised for cost, buildability and programme — coordinated with statutory authorities and documented for approvals.
On-site supervision, inspection and records management through construction, ensuring the project is built to design and compliance is maintained.
Sub-Core's early utility coordination work saved us weeks on programme and avoided what would have been a very expensive gas main diversion. Their knowledge of the statutory process is second to none.
Sub-Core Ltd is a specialist highways engineering consultancy. We provide statutory utilities co-ordination, site surveys and site investigation, 2D and 3D CAD design, App 1/16 drafting, value engineering and highway design — delivered as one integrated service rather than separate disciplines.
It's early engagement with utility companies to identify conflicts, negotiate solutions and prevent the costly, programme-critical diversions that derail highways projects. Identifying these issues before design freeze is one of the most effective ways to protect a project's cost and programme.
We work across major road schemes, housing and residential development, major infrastructure projects, commercial and mixed-use developments, local authority and active travel schemes, and utility diversion programmes.
Our team brings over 20 years of highways engineering experience, with a track record of 100% project delivery and 98% on-time delivery across the schemes we've supported.
Yes. We support clients across the United Kingdom, from statutory undertakers and Tier 1 contractors to local authorities and developers.
We typically reply within one business day. Get in touch and tell us about your scheme — there's no obligation.
Tell us about your scheme. We'll show you where early engagement and smart design can save time, money and risk.