Stormwater Drainage Surveys Sydney

Accurate surveying for drainage planning, compliance and site design.

  • Accurate stormwater surveys for DAs, subdivisions and civil works
  • Identify drainage paths, invert levels and surface runoff risks
  • Essential for stormwater design, OSD and compliance reporting
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Accurate Stormwater Surveys

MCS Surveyors provide precise and comprehensive stormwater drainage surveys for residential, commercial and civil projects across Sydney. Whether you are submitting a development application, designing stormwater systems, or managing drainage upgrades, our surveys deliver the essential data needed for informed planning and regulatory compliance.

Stormwater drainage is a critical aspect of site design, directly affecting flood risk, erosion, water quality and the structural integrity of surrounding infrastructure. Our experienced surveyors support architects, engineers, builders and developers by delivering accurate site assessments that identify drainage paths, levels and connections for both pre-existing and proposed conditions.

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What Is A Stormwater Drainage Survey?

A stormwater drainage survey maps the existing and proposed stormwater infrastructure on or around a site. These surveys provide detailed information about surface runoff, existing drainage points, service connections and terrain grades.

Depending on the project requirements, stormwater drainage surveys may include:

  • Identification and location of existing stormwater pits, pipes and outlets
  • Invert and lid level measurements for pits and access covers
  • Pipe diameters, directions and flow paths
  • Surface levels and contours to assess natural drainage flow
  • Connections to public stormwater systems or on-site detention (OSD) structures
  • Integration with hydraulic design or drainage modelling

Stormwater surveys are typically conducted during the planning or civil design phase and are used by hydraulic engineers and planners to ensure that the proposed development meets council and environmental standards.

Why Are Stormwater Surveys Important?

Stormwater management is not just a design consideration, it is a legal and environmental requirement for most developments. Poorly designed or inadequately assessed drainage systems can result in:

  • Localised flooding or pooling on the site
  • Water ingress to buildings or basements
  • Damage to roads, landscaping or infrastructure
  • Erosion or contamination of natural waterways
  • Delays in development approval or construction certification

A professional stormwater drainage survey helps avoid these risks by giving engineers the accurate, site-specific data they need to design compliant and functional drainage systems.

Our Stormwater Drainage Surveying Services

MCS Surveyors delivers high-accuracy stormwater surveys tailored to your project scope. Our services support residential lots, multi-unit developments, subdivisions, civil works and infrastructure projects.

Existing conditions and infrastructure mapping

We survey all visible and accessible drainage assets on the site and in the immediate surrounds. This includes:

  • Stormwater pits and manholes
  • Pipe sizes, materials and alignment
  • Invert levels, lid levels and pipe gradients
  • Kerb inlet locations and road drainage features

We also identify outfall connections and any easements or service corridors relevant to drainage.

Surface level and contour data

Our surveys include detailed ground level data to support drainage design and runoff analysis. Deliverables can include:

  • Spot levels and contour intervals (e.g. 0.25m or 0.5m)
  • Natural ground level identification
  • Slopes and catchment area mapping
  • Integration with architectural site plans

This data is particularly important for determining site falls, drainage direction and cut-and-fill requirements.

As-constructed drainage surveys

We provide as-built drainage surveys following the installation of stormwater infrastructure. These are used to:

  • Verify construction against design
  • Assist in applying for occupation certificates
  • Provide records for asset owners, councils and developers

Our as-constructed surveys include detailed plans showing the final position, level and specifications of installed drainage structures.

Support for on-site detention and water-sensitive design

For larger developments, our drainage surveys can be used to support the design of OSD systems or water-sensitive urban design (WSUD) features. We work alongside your hydraulic engineer or consultant to deliver coordinated survey data suitable for detention tank design, discharge control structures or infiltration areas.

Projects We Support

Our stormwater drainage surveys are used across a wide range of projects, including:

  • Residential and duplex developments
  • Subdivisions and new estates
  • Commercial and retail sites
  • Industrial developments
  • Car parks and driveways
  • Civil roadworks and kerb upgrades
  • Council drainage upgrades and easement mapping

No matter the scale or complexity of your project, MCS Surveyors provides clear, accurate and timely data to keep your project compliant and on track.

Why Choose MCS Surveyors?

With over 30 years of combined experience, MCS Surveyors is a trusted name in civil and construction surveying across Sydney and NSW. We understand how critical drainage is to site design, stormwater compliance and project approval.

What sets us apart:

  • Fully qualified and insured land surveyors
  • Fast, accurate surveys for hydraulic and drainage planning
  • Integration with DA, OSD, and subdivision requirements
  • Advanced equipment and software for reliable results
  • Clear documentation and responsive service from start to finish

We work closely with hydraulic engineers, certifiers, local councils and builders to ensure drainage designs are based on trustworthy data.

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Get In Touch

Our 30 years of combined experience in this industry has allowed us to consistently provide the best survey services to our clients for their residential, commercial, civil, and industrial properties in Sydney & Wollongong. Get in touch today for free preliminary advice and quote.

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