Service

Flood Level Surveys Sydney

Certified flood level data for safe, compliant development
Essential for land purchases, DA submissions, and new builds
Reduce risk of costly mistakes and legal setbacks

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Accurate Flood Level Surveys

Understanding your property’s flood risk is essential for safe, compliant development. MCS Surveyors provides accurate flood study surveys for residential, commercial, and infrastructure projects across Sydney and New South Wales. Whether you are purchasing land, preparing a development application, or planning to build in a flood-prone area, our surveys provide reliable, certified data to help you proceed with confidence.

Flood-affected land requires thorough assessment to reduce the risk of costly mistakes, legal complications, or future damage. Our experienced team works with property owners, developers, engineers, and local councils to deliver the precise survey data needed for effective decision-making and regulatory compliance.

What is a Flood Study Survey?

A flood study survey measures your site’s existing ground levels and compares them to known flood level data for the area. These surveys are essential for determining whether your property is at risk of flooding and for ensuring any planned development meets council and engineering requirements.

Flood study surveys are typically required when:

Building or renovating in flood-prone zones
Submitting a development application (DA) for new homes, commercial premises, or infrastructure
Applying for building approvals or compliance certificates
Completing flood recovery works or government grant applications
Purchasing property in flood-affected areas

Our surveys provide site-specific, certified information that councils, engineers, and builders rely on to assess flood risk and determine appropriate development controls.

Why Flood Study Surveys Are Essential

Flooding can cause extensive damage to homes, businesses, and infrastructure. Without accurate flood data, developments may be non-compliant, unsafe, or at higher risk of future flooding.

Our flood study surveys help to:

Identify whether your site is located within a flood-affected area
Determine ground levels compared to known flood benchmarks
Inform building design to mitigate flood risks
Provide engineers with accurate survey data for flood assessments

Support development applications and planning approvals
Ensure compliance with local council flood management policies
Reduce the risk of future property damage or legal issues

Councils and certifiers often require a professional flood study survey before issuing development approvals or occupation certificates, particularly for properties near rivers, creeks, coastal areas, or low-lying land.

1 in 5 year flood

20% chance of occurring each year

1 in 20 year flood

5% chance of occurring each year

1 in 100 year flood

1% chance of occurring each year

While less frequent events like a 1 in 100 year flood may seem rare, they often produce significant damage and are considered in most council flood mapping and building controls.Our flood study surveys accurately compare your property’s levels against these benchmarks, providing clear information to guide building design and risk management.

Buying Property? Check the Flood Risk First

If you are considering purchasing land or property in Sydney or regional NSW, it is essential to investigate potential flood risks, even if the property does not appear flood-affected.

Flood risk may not always be obvious, especially in flat areas, near waterways, or in coastal regions. Our experienced team can:

Check council flood maps and historical records
Assess the property’s location in relation to flood-prone zones
Measure existing ground levels and compare them to flood data
Provide advice on potential development restrictions
Help you make informed decisions before committing to a purchase

Knowing the flood risk early can help you avoid buying unsuitable land or being caught off-guard by unexpected building restrictions.

Building in a Flood Zone?

If your property is within a designated flood zone, a flood assessment will be required to support your development application. Before an engineer can prepare the flood assessment, a detailed site survey is needed to establish accurate ground levels.

MCS Surveyors provides the certified flood study surveys that engineers require for:

Preparing flood assessments and hydraulic reports
Establishing minimum floor levels and building platforms
Designing flood mitigation measures, such as raised floors or barriers
Complying with council development controls and conditions
Supporting flood recovery grant applications
Ensuring your project meets all relevant planning and safety standards

We work closely with engineers, designers, and councils to ensure your survey data is accurate, compliant, and ready for submission.

Consultation

We discuss your project requirements, site location, and any council flood mapping that applies to your property.

Site Survey

Our qualified surveyors conduct a detailed site assessment to capture existing ground levels and key site features.

Data Analysis

We compare your site’s levels to known flood benchmarks using the latest survey technology and historical records.

Certified Reporting

We prepare a flood study survey plan showing: Plans are provided in PDF and CAD formats for easy integration with engineering and architectural designs.

Ongoing Support

We remain available to assist with follow-up surveys, additional documentation, or liaising with your design team to ensure smooth project progression.

By combining cutting-edge technology with expert knowledge, MCS Surveyors ensures your volume data is accurate, compliant, and delivered on time.

DA Support Surveys for Flood-Affected Land

If your site is located within a flood-affected area, council will typically require detailed survey information as part of your Development Application (DA). These DA support surveys are critical for demonstrating that your proposed development complies with local floodplain management policies, risk mitigation strategies, and minimum building height requirements.

MCS Surveyors provide comprehensive survey data to support DAs for flood-prone sites across Sydney and New South Wales. Our services are tailored to meet the specific submission requirements of local councils, certifiers, and engineers, helping you avoid delays, redesigns, or costly application rejections.

Our DA support surveys for flood-affected land typically include:

Existing ground level surveys across the development site
Flood level verification using council data and/or hydraulic models
Identification of the 1% AEP flood level and minimum floor level requirements
Contour plans and site-specific annotations for planning submissions
Certified survey documentation suitable for inclusion in engineering reports

These surveys are often the first step in the flood assessment process and form the foundation for subsequent hydraulic modelling and flood mitigation design.

We work closely with your planning consultant, architect, or engineer to ensure that all survey data aligns with council expectations and planning legislation. Whether you're proposing a single dwelling or a multi-lot subdivision, our flood DA support services help you move through the approval process with confidence.

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Why Choose MCS Surveyors for Flood Study Surveys

MCS Surveyors has extensive experience delivering flood study surveys across Sydney and NSW. Our commitment to accuracy, reliability, and compliance ensures your project is supported by high-quality survey data every step of the way.

We provide:

Qualified, experienced Registered Surveyors
Accurate, certified flood study reports
Fast turnaround to meet project deadlines

Clear, easy-to-read plans in both PDF and CAD formats
Local knowledge of council flood mapping and approval requirements
Expert advice to guide you through complex planning processes

We understand the challenges of building in flood-affected areas and work hard to provide the data you need to develop safely and with confidence.

Flood Level Verification Surveys

Flood level verification surveys are carried out to confirm the flood level applicable to a specific property, as recorded in council flood mapping or based on hydraulic modelling. These surveys are typically required early in the planning or design process to establish the benchmark flood level that new development must respond to.

This is not a survey of the building itself, but rather of the flood level affecting the site, which may be required by engineers, planners or certifiers before proceeding with:

Site planning and concept design
Flood impact assessments or modelling
Determining minimum habitable floor levels
Submitting a development application (DA) on flood-affected land

At MCS Surveyors, we:

Compare existing ground levels on site to known flood level data
Reference council flood maps and available hydraulic modelling
Provide a plan showing predicted flood depths and extents relative to your site
Deliver certified survey reports suitable for engineering and planning use

Understanding the applicable flood level is a critical first step in designing safe, compliant development on flood-prone land.

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Floor Level Surveys for Compliance

Floor level surveys are conducted after construction to verify that a building’s finished floor level (FFL) complies with development consent conditions, particularly in flood-affected areas.

Local councils and private certifiers often require a Registered Surveyor to certify that the floor level has been constructed above the minimum required flood level, as specified in the approved flood report or DA.

These surveys are essential for:

Occupation certificate applications
Ensuring compliance with floodplain development controls
Confirming that flood mitigation design has been correctly implemented

Our floor level compliance surveys include:

On-site measurement of finished floor level(s)
Comparison to designated minimum floor level (e.g. 500mm above 1% AEP flood)
Certified reporting for submission to council or certifier

At MCS Surveyors, we work closely with builders, engineers, and certifiers to provide fast, accurate FFL verification — ensuring your project passes final inspection without delays.

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Flood Level Surveys Sydney

Accurate Flood Level Surveys

What is a Flood Study Survey?

Why Flood Study Surveys Are Essential

Understanding Flood Risk Terminology

1 in 5 year flood

1 in 20 year flood

1 in 100 year flood

Buying Property? Check the Flood Risk First

Building in a Flood Zone?

Our Flood Study Survey Process

Consultation

Site Survey

Data Analysis

Certified Reporting

Ongoing Support

DA Support Surveys for Flood-Affected Land

Why Choose MCS Surveyors for Flood Study Surveys

Flood Level Verification Surveys

Floor Level Surveys for Compliance

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