Wastewater Consultants is a New Zealand based consultancy delivering on-site wastewater design solutions that are practical, compliant, and tailored to site conditions.

We support homeowners, developers, housing companies, builders and drainlayers through every stage of the process — from initial site assessment through to system design and consenting documentation.

Our focus is simple: deliver on-site wastewater solutions that meet regulatory requirements while performing effectively in real-world conditions.

Our Services:

We provide a comprehensive range of wastewater consultancy services, including:

• On-site Wastewater System Design for Septic Tanks and On site wastewater treatment systems

• Engineered on-site wastewater systems tailored to site, soil and usage requirements.

• Site & Soil Assessment. Detailed evaluations to determine suitability and inform system selection.

• Feasibility Studies

• Resource Consent Support

• Technical documentation and reporting aligned with regional council requirements.

• Compliance & Advisory Specialist guidance to ensure systems meet current regulatory standards.

 
Our Approach:

Every site presents unique technical and environmental considerations.

We take a structured, evidence-based approach to ensure wastewater systems are designed appropriately from the outset. This includes assessing soil characteristics, hydraulic loading, land constraints, and regulatory frameworks.

Our objective is to deliver solutions that are:

• Compliant with regional council requirements

• Technically robust and fit for purpose

• Practical to install and maintain

• Designed for long-term performance

 
Why Choose Us:

• Specialist on-site wastewater-focused consultancy

• Strong understanding of NZ regional council requirements

• Practical, field-informed design approach

• Clear, detailed technical reporting

• Support from concept through to consent

We work closely with clients and project teams to reduce uncertainty, streamline approvals, and ensure wastewater requirements are addressed early in the design process.

 
Projects We Support:

We work across a wide range of developments, including:

• Rural and lifestyle properties

• Residential subdivisions

• Commercial developments

• Agricultural and farm systems

• Retrofit and system upgrades

 We can help you assess your site, understand your options, and progress your design through to approval with confidence.

Plan I Design I Consent