Greg Alderson and Associates is a Northern Rivers based consultancy firm that specialises in engineering and environmental science services. Greg Alderson and Associates have over 40 years of experience in local government and consulting services. Our consultancy services are used by many in the local community and we are proud of the fact that we are local, and like to focus on the needs of our community.

A firm of engineers, scientists and ecologists specialising in a wide range of commercial, residential and public sector projects.

Civil and Structural Engineering

• Civil and Structural Engineering – Design and documentation for structural requirements for development including footings, bracing, tie-down, post-tension and framing.

• Hydraulic Design – Design water reticulation systems, roof water tank sizing. Sewerage systems, both gravity and pressurized

• Road and Driveway Design – using CivilCAD and AutoCad design of roads in accordance with AUSTROAD, AUS-SPEC and Council requirements, long sections, cross sections and manoeuvrability

• Traffic Control Plans – Accredited under Roads and Traffic (Roads and Maritime) for provision of traffic control and traffic management plans

• Stormwater – On-site stormwater management designs, including detention, infiltration and dispersion design in accordance with Council requirements and under Water Sensitive Urban Design (WSUD)

• Project Management and Tender documentation – We can prepare estimates & high quality submissions on your behalf


Environmental Science and Engineering

We are leaders in our field.

• On-Site Wastewater Management – Designs for eco and passive including subsurface flow wetlands (reedbeds), sandfilters, composting toilets and gravity disposal to mechanical treatment and irrigation designs, proficient in AWTS and irrigation design

• Contaminated Land Assessments – Under State Planning Policy (SEPP) 55 for all new Development Applications where historic land use is required to be considered for possible contamination. Undertake all aspects, soil sampling, reporting, remediation and validation. Single dwelling developments to service station sites.

• Acid Sulfate Soils Assessment: Preliminary and detailed assessments, including acid sulfate soil management plans

• Noise Impact Assessments – Monitoring and assessment in accordance with the Industrial Noise Policy and Council Guidelines addressing impacts from possible noise sources including traffic/road, macadamia plantations and music festivals.

• Soil and Water Management Plans – In accordance with the Office of Environment and Heritage requirements. For control of soil and erosion, design of sediment ponds, swales and completion of management plans

• Statement of Environmental Effects (SEE) – Planning document for the submission of development applications for Council for houses, dual occupancies, subdivisions including Torrens, strata and community title

• BASIX Certificates – In accordance with NSW Planning and Infrastructure, for dwellings and dual occupancies.

• Drafting Services – General house drafting service for house plans using 3D modeling software ChiefArchitect and 2D AutoCad

• Landscaping Plans – General landscaping details providing plant list and management guide

• Ecology – Undertaking ecological assessments for development applications