StormFlood Engineering

We have decades of experience in dealing with the impacts of flooding in Queensland.

Flood Assessments

Do you need a Flood engineering report?

Preparing for severe weather and natural disasters, including flooding, is no longer a singular event that occurs once in a lifetime. It has become a fundamental part of our way of life – if your property is affected by any kind of flood overlay, it is always a good idea to get a flood report completed by one of our engineers. Building resilience entails having the capacity to plan, prepare, respond, and recover from adverse events with minimal disruption to our normal lives. 

Not everyone needs a flood report, but if you’re undertaking any of the following works, you will likely need a flood assessment done by our RPEQ:


Doing an extension, renovation, or new building in a flood overlay? You'll want to make sure you're achieving the minimum habitable floor levels.


Whenever you're intensifying the use of a property, Council will want to make sure that new buildings are flood resilient.


If you're buying a property, flood impacts can have a vast impact upon the value of a property and also the ability to obtain insurances.


Looking to understand the likelihood chances of a flood occurring at your home? We can provide detailed reporting.

What kinds of flooding are there?

There are various types of floods, and they can originate from one or a combination of four different water sources. Floodwaters may rise gradually and move slowly, which is typically associated with river flooding (e.g. the Brisbane or Logan Rivers) that occurs following extended periods of heavy rainfall across the entire catchment area. On the other hand, floodwaters may rise rapidly, move swiftly, and recede quickly, which is commonly associated with creek flooding and overland flow.


River flooding

When an extensive and extended period of rainfall occurs over a river's catchment area, river flooding may take place. As the river channel attains its maximum capacity, the surplus water spills over its banks, resulting in flooding - we've this occur in the Brisbane River over the past decade.

Creek flooding

Creek flooding occurs when a creek catchment experiences intense rainfall and the runoff from streets and homes also contributes to the occurrence of creek flooding. The combination of heavy rainfall, runoff, and the existing water in the creek leads to a rise in creek levels and can become very dangerous and high velocity flood events.

Coastal hazard flooding

Storm tide flooding occurs when a storm surge leads to sea levels that are higher than usual. A storm surge occurs when a low-pressure system or strong onshore winds cause sea levels to rise above normal levels. The impact of storm tides or surges is more significant during high tides and king tides and may impact low-lying areas near tidal waterways and foreshores.

Overland Flow

Overland flow is influenced by localised rainfall and urban structures such as stormwater pipes, roads, walls, and other structures, which makes it unpredictable. Learn more about Overland Flow by clicking the following button:

How to find if my property is affected by flooding

The easiest way to find out if your property is affected by Flooding is to enquire with your local council. The majority of local council websites will have a property enquiry tool or mapping system. Using Brisbane City Council as an example, we have provided a simple step-by-step process below to help you get the hang of it quicker:

Want to be extra cautious? We also recommend checking out the Flood Awareness Map that Brisbane City Council provides:

Image credit: Brisbane City Council

About StormFlood

StormFlood was founded by Martin (Chartered Engineer and RPEQ) in 2020 after wanting to provide direct professional engineer-to-client services (A lost art in todays world). His diverse background across civil engineering, construction and most importantly his specialisation in flood and stormwater management, allows clients to discuss project needs with a professional that truly understands your project constraints and can provide tailored advice to achieve an efficient outcome.

StormFlood focuses on flooding assessments (e.g. Overland Flow Path reports and Flood Impact Assessments), stormwater management (Quality and Quantity), and Water Sensitive Urban Design (WSUD) predominantly for Development Approvals.

StormFlood also provides due-diligence advice on pre-purchases, under contract and purchased properties, to help determine your flood risk and site opportunities.
Martin has provided engineering support on hundreds of development applications in his 10+ years career within the development and construction industry, with a major focus in the SEQ (in particular Brisbane City Council) and eastern QLD seaboard regions.

Martin Roushani Zarmehri

Our Process

Here at StormFlood, we’ve got years of experience in investigating flood impacts on properties. We can assist in all kinds of property projects and usually get involved at the development application stage to demonstrate that a project is compliant with the relevant planning scheme provisions including flood assessments, stormwater management plans, and overland flow path assessments. 

Property Enquiry

We're happy to take your enquiry and provide some initial feedback free of charge. Send us through a bit of information now.

Fee Proposal

If you need, we'll provide a fee proposal for our services outlining all of the costs, timeframes and process involved with moving your project forward.

Flood investigation and modelling

We use best practices to investigate the flood event that affects your property and how it might impact structures, and new development on the property.

Development Application lodgement

If you're working on a development application, we can work alongside your town planner or building certifier to ensure we provide the exact amount of detail that they need to issue an approval.

We specialise in flood modelling services in the Queensland region.

StormFlood have decades of experience in investigating flood events to provide a detailed flood assessment of any property or development application project.

Frequently Asked Questions

What does ahd mean?

When referring to Australian Height Datum (AHD), AHD is a vertical reference system used in Australia to measure heights above mean sea level. AHD was established in 1971 and is based on a network of permanent benchmarks that have been established across the country. We use AHD a lot when investigating the potential heights of flood events.


what is an rpeq?

RPEQ stands for Registered Professional Engineer of Queensland. It is a professional accreditation in Queensland, Australia that is awarded to qualified engineers who have met the competency standards set by the Board of Professional Engineers of Queensland (BPEQ). The RPEQ accreditation is legally required for engineers who provide professional engineering services to the public in Queensland, and it helps to ensure that engineering work is carried out to a high standard of safety, quality, and professionalism – StormFlood engineers are RPEQ certified.

what does 1% Aep mean?

Annual Exceedance Probability (AEP) is a statistical term used to describe the likelihood of a particular natural event, such as a flood or a storm, occurring in a given year. It is expressed as a percentage, and represents the probability that a certain event will be equalled or exceeded in any given year. For example, a 1% AEP flood event has a 1% chance of occurring in any given year – this used to be called the ‘Q100’.


what is the flood level of my property?

We recommend contacting your local council to see if your property is affected by a specific flood level. Depending on the kind of flooding, there may or may not be a specific AHD level for the flood event (e.g. an Overland Flow Path). 

If you can’t find any help, please feel free to reach out to one of our staff.


We love working with property developers, town planners, and other civil engineering firms. Take a look at some of the feedback we get from our clients below.