Each estimate depends on the inputs and assumptions, so keep those alongside the result when you discuss it with your team.
Explore greenfield runoff rates and an initial attenuation-storage estimate using the site inputs you provide.
For early drainage discussions. Confirm the rainfall assumptions and discharge rate before using the estimate in a design.
Check whether your postcode falls in a nutrient neutrality catchment, then work through an initial nutrient budget for your development.
A starting point for discussing the site and the assessment it needs.
Explore an early biodiversity estimate as you consider the existing habitats and proposed layout.
Use alongside ecological advice and the surveys needed for a formal assessment.
Flood risk screening
A FloodMetric report combines EA flood zones, surface water, historic flooding, reservoir inundation and Fathom climate modelling with the planning policy that applies. Reports start at £99 and are returned in under two working days.
Putting an estimate into practice
If you’re weighing up options for a site, share the inputs and results with us. We can help you understand what they mean for your proposal and what further assessment or design work would be useful.
Get a quote →Quotes are free and with no obligation.
Enter your site details and explore the options. Change the inputs to compare scenarios.
Keep the assumptions alongside the estimate so your team can see where the numbers came from.
Send us what you have and we’ll explain what it means for your site and what work you need next.
Tools and calculators
Tell us where your site is and what you’re planning. We’ll explain what’s needed and send a free, no-obligation quote.
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