Civil Engineering Services

Yesterday we announced the launch of Aegaea Civil Engineering and the benefits that can bring. But what does that mean in practice? Our new Director, James Mahoney breaks down the type of works that Aegaea Civils are involved in and what this means for our clients.

Drainage Services

Surface Water Drainage

We produce surface water drainage designs for both private and adoptable networks ranging from single residential properties, large scale residential developments, retirement/senior living and care home schemes, to industrial and commercial/retail developments. We provide the technical information required to support a planning application and discharge of conditions, including layout drawings and detail, drainage strategy reports, management and maintenance details and construction phase surface water management plans. We take a design from concept through to detailed design and construction, while working with the relevant drainage authorities to gain the relevant technical approvals, i.e. Sections 104, 106 and 185, Ordinary Watercourse Consent, SAB, etc. When considering your specific drainage requirements, we can advise you on the best surface water disposal option available toyou using industry standards and the SuDS hierarchy, with consideration given to all site constraints.

Foul Drainage

We undertake the private and adoptable foul drainage design across a number of sectors, with our designs being site specific and will be fully compliant with sewage sector guidance and Water Authority requirements. When considering your specific drainage requirements, we can advise you on the best foul effluent disposal option available to you. We are experienced in the design of connections to public sewers, outfalls to watercourse and discharge to drainage field. We undertake the liaison with the relevant stakeholders, including Water Authorities, Environment Agency and Natural Resources Wales, to gain the necessary technical approvals and agreements, i.e. Section 104, 106 and 185, permits and consents.

Enquire about Drainage Design

Highways Design

Access and Off-Site Improvements

Our schemes range from the design of access provision for large scale residential projects, complex junctions into new commercial and industrial premises, highway capacity improvements, and pedestrian/cycle/non-motorised user facilities. At pre-acquisition and feasibility stage we consider the site risks and constraints, and advise on the potential form of access, route selection and highway improvements that may be required to facilitate the project. We provide the technical information required to support a planning application and discharge of conditions. Working closely with the Transportation Planner we ensure that our design is fully coordinated with any modelling undertaken or technical reports produced. We undertake the detailed design and liaison with the Highway Authority, and provide the layout drawings, construction details and specification required for the necessary applications for technical approval and legal agreement, i.e. Section 278.

Estate Roads

Our work spans the initial feasibility assessment, development of the masterplan layout and preliminary design for planning applications, through to undertaking full detailed design, technical approvals, and construction. Consideration is given at an early stage to vehicle swept paths and visibility requirements, and we take a proactive approach to communication with the design team, to ensure that the estate road design is fully coordinated with the masterplan and site constraints. We undertake the design and modelling to meet the requirements of the Highway Authority, compliance with design standards/specification and the guidance set out in the Manual for Streets, and our team have extensive experience in the technical approval and legal agreement process, i.e. Section 38, where roads are offered for adoption.

Road Safety Audits, which are a specialist process that must be carried out independently of the design team, is often an important requirement of the planning and technical approval/adoption. We are able to coordinate the audit with the Auditor, prepare an audit brief, review the findings and prepare a designer’s response.

Enquire about Highways Design

External Works


We undertake the detailed site-wide levels design, to include proposed external levels and gradients, and retainment, with careful consideration given to the existing site topography. We work closely with the design team to ensure that the design is fully coordinated with other key features such as buildings, hard and soft landscaping, trees, etc. We understand that our designs have an impact on the local environment, and we pay careful attention to this whilst ensuring that a robust, cost-effective design is produced that meet the requirements of Local Authority guidance, Building Regulations and our clients aspirations.

Ground Modelling

We produce a ground model of the proposed design, of which a number of options can be assessed, that can be interrogated against the site topography, to achieve the optimum earthworks design. The ultimate objective being to minimise off-site disposal of material, which contributes to a reduction in development costs and shortens the programme. This also has added environmental benefits in reducing road haulage and landfill disposal.

Enquire about External Works

Get in touch with our expert civils team

Victoria Walker BSc (hons) MCIHT
I’m a Civil Engineer with extensive experience in Highways, Drainage and External Works design. During my career to date, I have designed and managed a wide range of projects from extensions to...
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James Mahoney BSc FIHE CIHT
I am a Civil Engineer with over 27 years’ experience in the sector, specialising in the design of highways, infrastructure, drainage and external works. I work with local and national government...
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Aegaea work alongside home owners, private developers, planning consultants, architects, local authorities, international development agencies and contractors. Aegaea know exactly how to help you.

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