Stormwater Management & Civil Engineering Design Solutions for Seamless Project Approvals.
Experts in stormwater management plans, drainage design, and compliance for residential, commercial and industrial projects.
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Who we help?
Supporting architects, town planners, developers, and homeowners with expert designs that meet compliance and streamline approvals.
Architects, Town Planners, and Developers – Expert Design collaboration to ensure a smooth development application, construction certificate and occupation certificate approval process.
Builders & Contractors – Seamless and cost-efficient integration of approved stormwater and civil solutions.
Homeowners – Help you comply with Council stormwater and Approved Consent Conditions to get you building faster.
Stormwater & Civil Engineering Services
We offer civil engineering services for pre-DA consultation, feasibility assessments, development applications, construction and occupational certificates for residential, commercial, industrial, rural developments, including alterations and additions, new residences, multi-unit and subdivisions.
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What we deliver:
Stormwater Management Plans – Approval ready drainage designs tailored to your site.
What we do:
Design, Detailing and Computational Analysis of:
On-Site Detention (OSD) systems
On-Site Retention (OSR) systems
Integrated OSD and OSR systems
Roof and planter box systems
Sump and pump systems
Incorporation of Water Sensitive Urban Design (WSUD) measures - refer to WSUD service
Incorporation of Stormwater easements - refer to Stormwater Diversions/extensions service
Lawful point of discharge selection through:
Kerb and gutter
Charged lines
Absorption trenches
Infiltration trenches
Dispersion trenches and
Level spreaders
Proprietary products
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What we deliver:
Driveway Design Plans - Custom layouts for optimal access.
What we do:
Design, Detailing and Computational Analysis of:
Driveway alignments
Vehicle turning paths (swept paths)
Driveway long sections & cross sections
Driveway crossover design (Click on public domain title)
Car space design
Driveway stormwater design and integration into the stormwater management plan
Earthwork estimation
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Specialised assessments to ensure compliance.
What we deliver:
Flood Risk Management Plans/Report
SEPP Complying Development flood report
Flood Emergency Management Plan
Overland Flow Study
What we do:
Catchment Analysis
1D/2D flood modelling using HEC RAS
Flood data collection/collation/interpretation
Hydrologic and hydraulic modelling analysis of existing and proposed stormwater systems
Preparation of flood report/certificate
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Efficient water management strategies.
What we deliver:
Erosion and Sediment Control Plans (small sites)
Soil and Water Management Plans (large sites)
What we do:
Selecting and detailing erosion and sediment control measures in accordance with Landcom's "Blue Book"
Sizing temporary sediment basins
Why Choose Amuna?
With 7+ years of experience in stormwater and civil consulting, we simplify the approval process by providing innovative, cost-effective solutions tailored to your needs.
Key factors:
Work directly with Stu, a Chartered Civil Engineer and Qualified Builder.
Council-Approved Designs
Quick Turnaround Times
Affordable, High-Quality Engineering Solutions
Trusted Local Expertise
Our Commitment to Excellence
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Integrity
Honesty, clear and timely communication is fundamental to our way of working.
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Cost-effective
Our first-principles approach is to offer innovative and cost-effective design solutions.
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Precision
Precision is reflected in our clearly documented drawings and project delivery.
Got Questions?
We have the answers.
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Our lead times typically vary between 2-4 weeks.
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We specialise throughout NSW. Our primary LGA’s are located in Sydney, Central and South Coast areas.
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Yes, we work with Councils on an as-needed basis, though typically, we will have one-to-one discussions with Council Engineers for each specific project.
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The cost of each consultation varies depending on the development type, site location and Council requirements. Book a consultation or contact us today for a free quote.
Let's Get Started!
Reach out today for a free initial consultation and quote. We’re committed to responding promptly and helping you bring your project to life.