The importance of environmental and planning due diligence in project site selection

Environmental readiness is investment readiness: Why early environmental understanding matters more in a faster approvals system

New Zealand's reform of the Resource Management Act system is nearing completion. The Government's stated aim is to remove barriers and accelerate development.These reforms follow closely behind the implementation of the Fast-track Approvals Act 2024, which is designed to enable projects of national and regional significance to progress through consenting more efficiently.

These reforms are intended to support investment and development by providing clearer and faster approval pathways. However, while streamlined processes may reduce regulatory delays, they do not reduce environmental complexity. The environmental issues associated with a project still exist and must be resolved in a timely and cost-effective manner for development to be successful.

In many respects, accelerating the ability to consent and commence development makes early environmental understanding more important, not less.

Projects that move successfully from concept to delivery establish a clear understanding of their environmental setting early. This includes factors such as ecology, water, air quality, noise, transport, cultural heritage and community considerations. These issues can influence project design, stakeholder confidence, approval pathways and ultimately project viability.

Understanding environmental constraints early can also avoid significant cost. In some cases, investigations may reveal that a site is unsuitable for economic, environmental or consenting reasons, allowing proponents to make informed decisions before substantial investment occurs. While this can be a difficult conclusion, it is often more cost-effective than attempting to progress a project on a site that cannot support the intended activity.

Where impacts cannot be fully avoided, mitigation or offsetting measures may be required. Understanding these requirements early is critical, as some impacts are costly to address and some environmental thresholds may ultimately limit or prohibit development altogether.

Environmental readiness is investment readiness

Investors and project proponents need confidence that the costs, risks and constraints associated with a development are accounted for in initial feasibility. A streamlined consenting pathway improves confidence in time frames, but it is of limited value if the environmental implications of a project remain uncertain.

We regularly see projects encounter delays because key environmental constraints have not been identified until project designs are largely fixed.

For example, industrial facilities, battery energy storage systems and data centres may face air quality or noise constraints that require design changes, emissions controls or greater separation distances. Such adjustments are typically straightforward and cost-effective when identified early but become much more difficult once design is complete.

Ecological constraints provide another example. Understanding the presence of significant habitats, threatened species, wetlands or ecological corridors at an early stage allows project teams to incorporate avoidance measures and mitigation strategies while maintaining flexibility in design. It can also help determine whether biodiversity offsetting is feasible and appropriate.

Similarly, projects involving streams, wetlands or sensitive ecological areas often require seasonal surveys, baseline monitoring and habitat assessments. These investigations take time and may be constrained by survey windows. Not undertaking these early can create significant programme delays.

Faster pathways still require robust evidence

There can be a perception that accelerated or coordinated approval pathways represent a relaxation of environmental requirements. They do not.

What changes is the pace at which projects move through the system. Faster pathways place greater emphasis on having robust information available at the outset as decision-makers have less time to assess information. Missing information can create significant consenting risks, particularly where new environmental investigations are needed, and seasonal survey windows are unavailable.

A streamlined approvals process cannot compensate for an untested design, late baseline studies or poorly understood environmental effects. The objective is not simply to complete technical investigations earlier, but to undertake the right investigations while they can still inform project design and decision-making.

Identifying the right work requires an understanding of both the environmental characteristics of a site and the planning framework that will apply to the project. Environmental specialists, planners and consenting advisers therefore need to work closely together from the outset to get this right.

What environmental readiness looks like in practice

1. What are the key environmental risks?

The first step is understanding the environmental setting. This includes nearby communities, ecological values, water resources, air quality, land condition, existing development pressures and cultural heritage considerations. The purpose is not to investigate every issue in detail immediately, but to identify the factors most likely to influence design, approvals or delivery.

Once those constraints are understood, the design can respond to them rather than retrospectively trying to accommodate them, often at greater cost.

In some cases, environmental constraints may be at a level that an alternative site offers a better outcome. Identifying this early can avoid considerable expenditure and programme delays.

2. What design decisions can reduce risk?

Environmental performance is closely linked to design.

Changes to site layout, technology selection, emissions controls, transport arrangements and operational practices can significantly reduce environmental impacts while also lowering approval risk and compliance costs.

Environmental advice delivers the greatest value when it helps shape these decisions rather than simply assessing a design after major choices have already been made.

Importantly, project decisions are interconnected. A change that improves one environmental outcome may create challenges elsewhere. Addressing these interactions requires collaboration between environmental, engineering and planning teams while sufficient design flexibility remains.

3. What is the likely regulatory pathway?

The approval pathway influences both project timing and information requirements.

Different consenting processes have different expectations, timeframes and evidentiary standards. As New Zealand's planning reforms continue, understanding these changing requirements early is essential.

Project teams benefit from considering not only the next approval step, but the full regulatory journey. This helps ensure studies are appropriately scoped and reduces the risk of delays later in the process.

Technical experts therefore need to work closely with planners and statutory advisers to understand current and emerging requirements.

4. What evidence is needed, and when?

Many environmental studies require significant lead time.

Ecological surveys, baseline monitoring, hydrological investigations, air quality assessments and cumulative impact evaluations may be influenced by seasonal conditions, site access requirements or third-party information.

Developing an early evidence plan helps ensure investigations are scoped, sequenced and budgeted in line with project milestones. This reduces the likelihood that environmental information becomes a critical path constraint later in the programme.

Moving from opportunity to delivery

New Zealand's ambition to accelerate infrastructure and development presents significant opportunities across energy, transport, minerals, manufacturing and urban growth sectors.

However, streamlined approvals alone will not determine project success. The projects most likely to progress efficiently are those that establish a strong environmental foundation before consent applications are lodged.

Environmental readiness provides confidence in the site, design, programme and approvals strategy. It supports better engagement with regulators, communities and stakeholders because key issues can be discussed early, rather than emerging unexpectedly during assessment processes.

This early understanding also helps build credibility and trust. Communities and stakeholders are often more receptive when project proponents can demonstrate they have identified risks, considered alternatives and integrated environmental management into project design from the beginning.

How SLR can help

SLR brings together environmental, planning, stakeholder engagement and advisory expertise within a single multidisciplinary team. This enables environmental constraints, project risks and consenting requirements to be considered in an integrated way rather than through separate workstreams.

Our teams are closely engaged with ongoing planning and consenting reforms and understand how evolving requirements influence project delivery and approvals strategies.

To support clients, SLR assigns experienced project managers who oversee the broader project environment, coordinate technical inputs and ensure environmental considerations are addressed in a balanced, practical and commercially informed manner. This integrated approach helps proponents maximise site potential, strengthen project design and build a more confident pathway to approval and delivery.

For organisations seeking to capitalise on New Zealand's accelerated development environment, environmental readiness is ultimately investment readiness. Understanding environmental opportunities and constraints early creates greater certainty, reduces risk and supports faster, more successful project outcomes.