What Is Environmentally Sustainable Design?

Understanding Environmentally Sustainable Design

Environmentally Sustainable Design, commonly abbreviated as ESD, is a design philosophy and practice that integrates environmental considerations into every stage of a building's lifecycle. Rather than treating sustainability as an add-on or afterthought, ESD embeds environmental responsibility into the fundamental design decisions that shape how a building performs, how its occupants experience it, and how it interacts with the surrounding environment.

The concept of ESD emerged from growing awareness that the built environment is responsible for a significant share of global energy consumption, greenhouse gas emissions, water use, and waste generation. In Australia, buildings account for approximately 25% of total greenhouse gas emissions and consume around 40% of all energy produced. ESD aims to reduce these impacts through intelligent design, appropriate technology, and responsible material choices.

ESD is not a single standard or certification scheme. Instead, it is a broad framework that encompasses multiple sustainability categories and can be assessed using various tools and rating systems. In practice, the term is most commonly encountered in the context of Victorian planning requirements, where many councils require an ESD report (sometimes called an Environmentally Efficient Design or EED report) as part of the planning permit application process.

The Core Principles of ESD

ESD is built on several interconnected principles that together create a comprehensive approach to sustainable building:

Energy Efficiency

Minimising energy consumption through passive design strategies (orientation, insulation, natural ventilation, thermal mass) and efficient active systems (high-performance HVAC, LED lighting, energy recovery). This is often the most significant category in an ESD assessment, as operational energy represents the largest ongoing environmental impact of most buildings. Energy efficiency in an ESD context goes beyond the minimum NCC requirements to target best-practice performance.

Water Conservation

Reducing potable water consumption through water-efficient fixtures, rainwater harvesting, greywater recycling, and water-sensitive landscaping. In Australia, water conservation is particularly important given the continent's variable rainfall patterns and history of drought. An ESD approach considers both indoor water use (fixtures, appliances) and outdoor use (irrigation, cooling towers, fire protection systems).

Indoor Environment Quality (IEQ)

Creating healthy, comfortable indoor environments through good natural lighting, adequate ventilation, thermal comfort, acoustic performance, and the selection of low-toxicity materials. IEQ directly affects occupant health, wellbeing, and productivity. ESD principles recognise that a truly sustainable building must be one that people want to occupy and that supports their health over the long term.

Material Selection

Choosing building materials with lower environmental impacts across their lifecycle, including embodied energy and carbon, recyclability, durability, and toxicity. Sustainable material selection considers the full supply chain, from raw material extraction through manufacturing, transport, installation, maintenance, and eventual disposal or recycling. Locally sourced, recycled-content, and certified sustainable materials are preferred.

Waste Minimisation

Reducing waste during both construction and operation. During construction, this means designing to minimise off-cuts and waste, specifying prefabricated components where practical, and implementing construction waste management plans. During operation, it means providing adequate space and systems for waste separation, recycling, and composting.

Transport and Accessibility

Encouraging sustainable transport through the provision of bicycle parking, proximity to public transport, electric vehicle charging infrastructure, and reduced car parking where appropriate. Site selection and urban design that reduce the need for private vehicle use are important ESD considerations at the master planning and site development stages.

Ecological Impact

Minimising the building's impact on local ecosystems and, where possible, enhancing biodiversity. This includes preserving existing vegetation, managing stormwater on-site, reducing urban heat island effects, and incorporating green roofs, living walls, or habitat corridors where feasible.

When Are ESD Reports Required?

ESD reports are most commonly required in Victoria, where numerous local councils have adopted sustainability planning policies into their planning schemes. These policies require applicants to submit an ESD report (or Sustainability Management Plan) as part of their planning permit application. The report must demonstrate how the proposed development addresses relevant sustainability categories and achieves best-practice environmental performance.

Victorian Council Requirements

In Victoria, the following councils (among others) have adopted ESD or EED planning policies:

• City of Melbourne
• Merri-bek (formerly Moreland)
• City of Yarra
• City of Port Phillip
• City of Stonnington
• City of Darebin
• City of Banyule
• City of Boroondara
• City of Glen Eira
• City of Whitehorse
• City of Maribyrnong
• City of Moonee Valley
• City of Hobsons Bay
• City of Bayside

The specific requirements vary by council. Some require ESD reports for all planning permit applications, while others apply thresholds based on development type and scale. Common triggers include:

• New residential buildings of two or more dwellings
• Non-residential developments over 100–500 m² (varies by council)
• Mixed-use developments
• Significant extensions and alterations to existing buildings

ESD Outside Victoria

While Victoria leads Australia in mandatory ESD planning requirements, other states are increasingly incorporating sustainability considerations into their planning frameworks. New South Wales has BASIX, which covers energy and water for residential buildings. Many councils across Australia now request or encourage sustainability reports as part of Development Applications, even where not formally mandated. For commercial projects, Green Star certification provides a nationally recognised framework for demonstrating ESD outcomes.

What Does an ESD Report Include?

An ESD report prepared by an accredited consultant typically includes:

1. Project description — Site context, building description, and key design parameters.
2. Sustainability assessment — Evaluation of the design against each relevant sustainability category (energy, water, IEQ, materials, waste, transport, ecology) using recognised assessment tools such as BESS (Built Environment Sustainability Scorecard), Green Star, or STORM.
3. Benchmark scoring — A BESS scorecard or equivalent showing the project's performance against best-practice benchmarks. Most councils require a minimum overall score of 50% and a minimum of 50% in the energy and water categories.
4. Commitments register — A detailed list of specific sustainability commitments that the applicant agrees to implement, which can be incorporated as permit conditions.
5. Supporting documentation — Relevant calculations, product specifications, and drawings that demonstrate how commitments will be delivered.

The BESS Assessment Tool

The Built Environment Sustainability Scorecard (BESS) is the most commonly used assessment tool for ESD reports in Victoria. Developed by the Council Alliance for a Sustainable Built Environment (CASBE), BESS provides a standardised framework for evaluating the sustainability performance of residential and non-residential developments.

BESS assesses performance across nine categories: energy, water, stormwater, IEQ, transport, waste, urban ecology, innovation, and management. Each category is scored and weighted to produce an overall percentage score. The accepted best-practice benchmark is 50% overall, with a minimum of 50% in both the energy and water categories. Projects that score below these thresholds may need to revise their design to meet council requirements.

How We Connect You with Accredited ESD Consultants

Preparing an ESD report requires specialist knowledge across multiple sustainability disciplines, familiarity with local council requirements, and proficiency with assessment tools such as BESS. We connect you with accredited ESD consultants who have the experience and qualifications to prepare a compliant report for your project.

Whether you need an ESD report for a Victorian planning application, a Green Star assessment for a commercial development, or guidance on incorporating sustainable design principles into your residential project, request a free quote and we will connect you with the right consultant for your needs.