Water, Civil and Environmental Consulting
At Aegaea, our expertise is unlocking development potential. We specialise in all aspects of water, civil engineering and environmental consulting. We work with you to unlock the development potential of your site, no matter what size.
From home improvements and extensions, to major developments and national infrastructure, Aegaea works alongside our clients every step of the way; from a free unique quote to delivery of comprehensive reporting.
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What are you working on?
Tell us where you are and we'll point you to the right help.
Prepare a planning application
Understand the flood risk assessment your proposal may need and what to send us for a quote.
Plan drainage for a site
Explore surface water drainage and SuDS, from a planning strategy to detailed design.
Respond to a drainage condition
Work out what the condition asks for and the reports, calculations or drawings needed.
Check a site before the next step
Not sure what you need? Answer a few quick questions and we'll point you to the right service and consultant.
Design access and estate roads
Get help with site access, road layouts and the evidence needed for technical approval.
Work through environmental requirements
Find advice on water and nutrient neutrality and the evidence needed for your development.
Core services
Flood risk, drainage and environmental support for planning, from the first look at a site to detailed design.
Your Partner In Flood Risk, Water And Environment
Every quote is free and no-obligation.
Get a free quote →Aegaea works alongside homeowners, private developers, planning consultants, architects, local authorities, international development agencies and contractors. We are specialists at unlocking the hidden value in the land – using decades of experience to guide developments through planning, challenging EA flood zones and creating unique flood modelling solutions to drive your application. So whether it’s an exception test, permitted development, extension, a nutrient neutrality statement, or a 5,000-unit major development, Aegaea knows exactly how to help you.
We’ve worked on thousands of flood risk assessments. While the policy isn’t unique, we know that every development is.
It’s your development; it’s personal, and it needs an expert who understands the nuance and details that make a successful Flood Risk Assessment for planning.
Every quote from Aegaea is free, unique and bespoke to your requirements. It’s just one of the ways that we set ourselves apart.
Our expert consultants take the time to understand what you need and when you need it – delivering high-quality, professional reports that have helped hundreds of customers obtain planning permission – all reviewed and signed off by Chartered professionals from CIWEM.
From a kitchen extension in London, to new build developments, experience the difference of working with Aegaea and drop an email to our experts.
Why choose Aegaea
Flood risk, civils and environmental expertise in one team, from first questions to detailed design.
Your expert from start to finish
A named expert leads your project, so you always know who to speak to and your advice comes from a specialist who knows your site.




Meet our experts Our own flood risk technology
Alongside industry-standard modelling software, we use our own flood risk tools and current environmental data to assess sites quickly and consistently.
Planning knowledge across the UK
We work with councils, flood authorities and regulators across England, Scotland and Wales, and understand how their requirements differ.
- Projects delivered
- 4,100+
- Planning authorities worked with
- 400+
- Clients supported
- 1,200+
Recent projects
From single homes to national infrastructure, see how our work has supported planning decisions. See all case studies →
Planning permissionBeaconsfield, BuckinghamshireBroad Lane, Beaconsfield – Flood Risk Assessment & Drainage Support for Residential Planning Appeal
Planning permission granted following the second public inquiry.
Planning permissionColbost, Isle of SkyeFull Consent Granted at The Three Chimneys, Isle of Skye
SEPA and council flood-risk objections were withdrawn; full permission was granted on 14 August 2026, with flood-related conditions.
Development consentNorth YorkshireHelios Renewable Energy Project DCO – Flood Modelling for Solar Development
Development Consent granted for the project.
Get in touch
Call, email or send us a few details about your site, and we'll get back to you.
London — 020 8156 6076
Edinburgh — 0131 380 7224
Email — enquiries@aegaea.com
Opening times — Monday to Friday, 08:00 to 19:00
Closed weekends
Client feedback
What it’s like to work with us
Latest insights
Case studies, technical notes and policy updates from our team. View all insights →
Case StudySeptember 2026Case Study: Full Consent Granted at The Three Chimneys, Isle of Skye
Hydraulic modelling and a revised site layout helped withdraw SEPA objections and secure full planning consent for The Three Chimneys on the Isle of…
NewsSeptember 2026Five years at Aegaea: a retrospective.
When I joined Aegaea in September 2021, I was employee number five. There are over thirty of us now. There have been major changes in flood risk…
PolicyAugust 2026New NPPF 2026: What Does It Mean for Flood Risk? | August 2026 Update
The Government published a new National Planning Policy Framework (the NPPF, which refers to itself as “the Framework”) on 17 August 2026. Flood risk…
Talk to us
Contact Us Today For Free, No Obligation, Flood Risk Assessment Advice
Tell us what you’re planning and what you’d like help with. We’ll work through the next steps with you.


















