is a study evaluating the likelihood and potential impact of flooding on a proposed development site. It is required under The Planning System and Flood Risk Management Guidelines (OPW & DHPLG) and must demonstrate that flood risk is appropriately managed in line with the Justification Test where necessary.

A FRA is typically required when:

• The site is within Flood Zone A or Flood Zone B, as per CFRAM flood mapping.
• The local authority has issued a Further Information Request related to flood risk.
• There are concerns about pluvial (surface water), fluvial (river), coastal, or groundwater flooding affecting the site.

The Justification Test is a two-tier assessment applied when developments in Flood Zone A or B must be considered due to strategic planning reasons. It ensures that essential developments are located appropriately, incorporate flood mitigation measures, and do not increase flood risk elsewhere.

A FRA is commonly required for:

• Residential and commercial developments in flood-prone areas.
• Infrastructure projects such as roads, bridges, and energy projects.
• Large-scale planning applications where local authorities request a Strategic Flood Risk Assessment (SFRA).

Hydraulic Modelling is used to simulate flood flows and predict flood levels under various conditions, including climate change scenarios. It helps developers and planners understand fluvial and pluvial flood risks, allowing for better design decisions and compliance with Irish planning regulations.

A well-prepared FRA provides clear, evidence-based responses to Further Information Requests by:

• Presenting hydraulic modelling results to support decision-making.
• Identifying site-specific mitigation measures, such as flood-resistant construction.
• Addressing concerns about surface water management and drainage impact.

The timeframe depends on the complexity of the site, but standard FRAs can be completed within 2-4 weeks, ensuring timely responses to planning submissions.