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Sketch a nature scenario. See an illustrative return in 60 seconds.

Type a postcode or pick an illustrative scenario. Everything on this page is a synthetic demonstration generated from fixed assumptions — not an observed or measured site result, and not a site assessment.

Or pick a Golden Scenario ↓ See the valuation method
Synthetic demonstration · 60 seconds

Type a postcode to see how the interface behaves.

The address you type is turned into a number, and that number is used to pick figures from a fixed range. No climate, soil, hydrology or biodiversity data is retrieved for the place you enter, and no external data source is consulted.

Warning: this demonstration produces synthetic figures generated from the text you type. It is not a site assessment, no data source is consulted, and results cannot be exported or saved as an audit.

Demo only — uses representative layers, not your live cadastral data. Sign up for a real workspace to plug in your own geometry.

What you’re looking at
Marylebone · London, UK

An illustrative Marylebone scenario with nature-based interventions. Every figure below is generated from fixed assumptions — it is not an observed or measured site result, and it is not a valuation.

See the valuation method
Modelled annual avoided cost · illustrative
£3.14M
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Vitality Audit
Proposed interventions
★ Mini-Forest (Miyawaki) · 1,800 m²Bioswale · 1.1 kmGreen Roof · 9,400 m²
Headline
+0.42 vegetation density
Five-year modelled uplift across the catchment
Modelled avoided cost / yr · illustrative
£3.14M
Stormwater retained
82%
PM2.5 reduction
−18%
Wellbeing-years gained / yr
1,240
Carbon sequestered
184 tCO₂e/yr
Aligned to
UK Environment Act 2021 — Biodiversity gainLondon Plan G5HM Treasury Green Book
Magic Moment — live PDF preview
Data view

Vitality Audit — London Marylebone

Problem. Vegetation density is low (NDVI 0.21) across a 14 ha conservation area. PM2.5 exceeds WHO limits 184 days a year, and NHS records 2,400 anxiety-related GP visits in the catchment.

Urban Nature Audit solution. Three pocket mini-forests (Miyawaki method), 1.1 km bioswale on Wigmore Street, and a green-roof retrofit programme across 18 commercial roofs.

↳ Current Statutory Biodiversity Metric guidance (planning boundary)
↳ HM Treasury Green Book — WELLBY (2021)
↳ Schirone et al. (2011) Miyawaki succession
Urban Nature Audit · UrbanCat
Marylebone
London, UK
Headline
£3.14M
modelled avoided cost / yr · illustrative
Stormwater retained
82%
PM2.5 reduction
−18%
Wellbeing-years gained / yr
1,240
Carbon sequestered
184 tCO₂e/yr
£3.14M avoided cost · validated wellbeing uplift. Methodology: UK Environment Act 2021 — Biodiversity gain · London Plan G5 · HM Treasury Green Book.
Illustrative scenario · Generated from fixed assumptions · Not an observed or measured site result
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Next step

Book a working session with our research team

We'll spin up a private workspace seeded with your portfolio's geometry, climate and policy frame — usually within 48 hours.

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Expert-assisted screening tool — under commercial-readiness review

Urban Nature Audit is an expert-assisted screening tool. Its outputs are screening-level and non-statutory, they are intended to be operated and interpreted by a competent professional, and the product is currently under commercial-readiness review. It does not replace:

  • an ecological survey
  • the official statutory biodiversity metric
  • planning advice
  • flood or drainage engineering
  • legal advice
  • a professional valuation