Water & ground

Flood Risk Assessments for Planning

Assessment of flood risk relevant to the site and the proposed development.

When this service may be useful

Flood risk evidence helps establish whether a development can respond appropriately to flood sources and site conditions. The required assessment depends on the location, use, scale and planning circumstances of the proposal.

How the work is approached

We identify the relevant flood information and assess the proposed development against the risks within the agreed scope. The work sets out assumptions, mitigation and information gaps. Specialist modelling, levels surveys or further drainage evidence are identified where needed.

What you receive

You receive an assessment explaining the flood risk considerations, proposed response and remaining dependencies. The report is tailored to the available evidence and does not replace detailed engineering investigations outside the appointment.

What we need to start

Site location, levels where available, proposed use and development drawings.

We review the site, proposal and planning stage to agree the appropriate scope. Specialist surveys and assessments are coordinated where needed.

How our planning consultancy process works

ILLUSTRATIVE REPORT PREVIEW

Flood Risk Assessment

Front cover and contents page examples. The document structure is tailored to your instruction, site and relevant planning requirements.

Flood Risk Assessment illustrative front cover
Front cover
Flood Risk Assessment illustrative contents page
Contents page

What the report should contain

This outline explains the purpose of each section. The final contents depend on the agreed scope, available evidence and requirements of the local planning authority.

  1. Document control & executive summary

    Project details, reference, revision, date, author, reviewer and a concise summary of the key findings.

  2. Site, proposal & vulnerability

    Describe location, levels, proposed uses and development lifetime.

  3. Data, history & consultation

    Review flood records, datasets, strategic assessments and relevant advice.

  4. Flood sources & baseline risk

    Assess river, sea, surface-water, groundwater, sewer and other relevant risks.

  5. Climate change & residual risk

    Review future risk, flood defences, exceedance and breach where relevant.

  6. Policy tests, where applicable

    Provide or reference sequential and exception test evidence when required.

  7. Flood impacts & drainage interface

    Assess effects on flood storage, flows and risk elsewhere.

  8. Mitigation & safe access

    Address floor levels, resilience, escape, warnings and emergency arrangements.

  9. Risk conclusions & further work

    Explain suitability, limitations and any modelling or information still needed.

  10. Appendices & evidence register

    Index relevant plans, photographs, calculations, surveys and source documents; include only the evidence relevant to this instruction.

Read our planning supporting documents guide to explore related evidence.

CASE STUDIES

Where we have prepared this report

All case studies

YOUR QUESTIONS ANSWERED

Flood risk assessments FAQs

Clear answers to help you plan your next step.

Still have a question?

Tell us about the site and we will confirm what is needed and what it should cost.

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Does a desktop flood risk assessment include modelling?

Not automatically. The need for modelling, levels information or further investigation is assessed for the site. These tasks are identified and priced separately where they are outside the agreed desktop scope.

What information should I provide to get started?

Site location, levels where available, proposed use and development drawings.

How is the fee for this service confirmed?

The price shown is a starting estimate for the stated scope. We review the site, proposal, available information and required deliverables, then confirm the fee, exclusions and programme in a written quotation before appointment.

How do your specialists work together on a project?

We bring the relevant planning consultants and specialist providers into a coordinated project team. They work from an agreed brief and current proposal, with dependencies and design changes discussed across disciplines. Each consultant remains responsible for their own professional advice and agreed deliverables.

PART OF A COORDINATED APPOINTMENT

Your specialist evidence, connected.

This service can form part of a wider coordinated planning appointment. We bring the relevant consultants together to work alongside your design team, discuss assessment findings and identify how recommendations affect other reports and the proposal.

Your fee proposal confirms who prepares each document, the information it relies on and the limits of the instruction. A report provides evidence for the council’s assessment; the planning decision remains the council’s. Explore how our consultants work together or discuss the team your project needs.

YOUR NEXT STEP

Discuss your requirements.

Tell us about the site, what you want to achieve and any deadline. We will review it and suggest an appropriate next step.

Call 020 8004 4464 or email info@greencodeconsultants.com.

Make an enquiry