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Get Your Stormwater Engineering Plans & Approvals Faster

Trusted by NSW and QLD Builders & Developers

Stormwater Solutions from $500+GST

Stormwater Management Plans

Specialists in stormwater management systems for Single and Double Story dwellings, Duplexes, Granny Flats and Apartments. Fast track your project! 

Stormwater Inspections & WAX/WAE certification

Book an inspection from our team to ensure you meet development requirements.

Flood Studies, Reports and Certificates

Detailed flood studies and flood management reports for flood affected properties using Australian Standards and latest software packages. 

Stormwater Services Including

  • Extensions and alterations

  • New Dwellings

  • Duplexes

  • Medium Density

  • Unit Developments

  • Commercial and factories

  • Detention Systems

  • Absorption Systems

  • Pump-out Systems

  • Box Gutter Designs

  • Easement Designs

  • Flood Study & Assessments

  • Overland Flow Assessments

  • Flood Risk Assessments

  • Catchment analysis

  • Council Stormwater Infrastructure Design

  • Onsite detention certification

  • Work as Executed certification

  • Maintenance Schedule

Get in Touch

Level 2,103 Vanessa Street

Kingsgrove, NSW 2208

admin@rafzan.com.au

Tel: (02) 9554 9311

Open Mon-Fri 8:30am - 5:30pm

Request A Quote

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