One team across the whole development
Civil engineering is never separate from the rest of a development. Earthworks depend on the ground. Drainage depends on levels and catchments. Roads, services and access need to work with the buildings, boundaries, consent conditions and construction sequence.
Cook Costello brings civil, geotechnical, surveying and structural expertise together in one team. That means the civil design is developed with the ground conditions, survey information, structures and consent pathway already in view, rather than being coordinated after key decisions have been made. The result is a site that is easier to consent and is less likely to be held up by gaps between disciplines. From early feasibility through to construction, we help deliver infrastructure that works around site constraints.
We work across Northland, Auckland, Wellington and Christchurch, with knowledge of local conditions and council requirements in each region.
OUR CAPABILITIES
How we can help you
From early feasibility and servicing assessments through to detailed design, construction monitoring and certification, we guide projects through the civil engineering process with clear advice at each stage.
Land Development & Subdivisions
We help transform raw land into buildable, consentable sites by coordinating subdivision layouts, access, services and infrastructure requirements. Our team supports approvals, coordinates infrastructure and subdivision design, scoped to suit the project, from concept to completion.
Earthworks & Site Development
We design cut-and-fill strategies, site levels and ground stabilisation measures that suit the terrain and stand up over time. Our erosion and sediment control planning helps protect nearby waterways and keeps construction aligned with environmental requirements.
Roading & Pavement Design
From private accessways to public roads and carparks, we design transport infrastructure that is safe, durable and practical to construct. Our pavement and geometric design are matched to the traffic and loads it will carry.
Stormwater, Wastewater & Water Supply
We design stormwater, wastewater and water supply networks so they work together rather than competing for space and levels on site. Our designs are buildable and meet local council and public health requirements.
Flood Risk & Hydraulic Assessment
We assess flood hazards and model overland flow paths to understand site constraints and development risk. Where required, we design mitigation measures that protect assets, support consent and reduce the likelihood of flooding issues.
Construction Monitoring & Certification
We provide site observation, contract administration and formal certification to help confirm civil works are built in line with the approved design and consent requirements. That gives councils, clients and asset owners assurance the infrastructure will perform as intended.
OUR PROCESS
How civil engineering projects are delivered
Every project is different. The steps below outline how we typically guide a development from early planning through to construction and sign-off.
1. Initial Discussion
You contact us to discuss your development or infrastructure project. We clarify the scope, site constraints, council requirements and programme expectations, then confirm the level of civil engineering input required.
2. Feasibility & Information Review
We review site plans, servicing information, planning rules, flood data and existing infrastructure records to identify constraints and opportunities before design begins.
3. Civil Design & Approvals
We prepare buildable designs for earthworks, roading, drainage and services. Where required, we coordinate with utility providers and prepare documentation to support resource consent, engineering approvals or infrastructure servicing reports.
4. Detailed Design & Construction Documentation
We finalise drawings, specifications and calculations so the work can be priced accurately and constructed with fewer uncertainties. Our focus is on clarity, compliance and reducing risk during delivery.
5. Construction Monitoring & Certification
We observe construction, respond to site queries and provide certification where required to help confirm civil works are completed in line with the approved design and consent requirements. We support clients and contractors through to completion and council sign-off.
Why developers choose us
Since 1976, Cook Costello has delivered the civil engineering behind subdivisions, commercial developments and infrastructure projects across New Zealand. That experience means we understand local ground conditions, council expectations and the issues that tend to surface on different types of sites, so we can deal with them early rather than during consent or construction.
Developers choose us because our civil engineers work in the same team as our geotechnical, surveying and structural specialists. The parts of a development that depend on each other, ground conditions, levels, drainage, access, services, structures and consent requirements, are considered together rather than coordinated between separate firms after key decisions have already been made.
During construction, we also support clients with observation, certification and ground and earthworks testing through Geocivil, helping confirm the works are built in line with the design, consent conditions and council requirements.
Selected projects across New Zealand
Let's plan your development
Tell us about your project and site. Our civil engineering team will review what you're planning and give you clear guidance on the infrastructure design, approvals likely to be needed and the next steps before you commit to detailed design.