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Sustainability Statements for planning.

Whole-scheme sustainability statements for UK planning applications — covering biodiversity net gain, water efficiency, urban greening and BREEAM, addressing every topic a council validation checklist asks for.

★ 5.0 Google rated Every UK local authority No advance payment
Request a quote Email your drawings
Illustrative sustainability report: eco home with solar roof, heat pump, rainwater harvesting and net zero progression
BNG · Water · GreeningEnvironment Act 2021 aligned
10% biodiversity net gain
Submission-ready PDF
10%
Biodiversity Net Gain
Environment Act 2021
110 l
Water Per Person/Day
Part G calculator standard
UGF
Urban Greening
London Plan Policy G5
UK-wide
Full Coverage
Every local authority

What a sustainability statement shows

Biodiversity net gain, water efficiency, urban greening and the sustainability commitments councils now expect with planning applications.

Illustrative sustainability report: eco home with solar roof, heat pump, rainwater harvesting and net zero progression
Illustrative visualisation — every report is prepared from your site’s actual details.
Environment Act & Local Policy

The sustainability rules your application is judged against.

Mandatory 10% biodiversity net gain under the Environment Act 2021 heads a growing checklist: water efficiency to Part G, urban greening in London, and BREEAM where local policy requires it.

What councils now require

The recurring validation requirements:

  • 10% biodiversity net gain — with the statutory metric and a 30-year plan, unless exempt
  • Water efficiency — the 110 litres per person per day standard
  • Urban Greening Factor — London Plan Policy G5 scores for London schemes
  • BREEAM — where required for larger non-residential schemes

What your statement must demonstrate

A joined-up sustainability case:

  • BNG position — exemptions checked, metric approach and gain plan set out
  • Water calculations — fittings-based compliance with Part G
  • Greening measures — planting, roofs and permeable surfaces that lift your score
  • Policy mapping — national and local requirements addressed in one document
  • Submission-ready PDF — with a unique document reference
What you get

A submission-ready sustainability statement.

Prepared for your exact site, responding to each policy so the case officer can see compliance directly.

  • Biodiversity net gain (10%) under the Environment Act 2021
  • Water efficiency calculator (110 litres per person per day)
  • Urban Greening Factor (London Plan Policy G5)
  • BREEAM pre-assessment for commercial schemes where required
  • Energy, materials, circular economy, climate adaptation and health & wellbeing
  • Submission-ready PDF report with a unique document reference
Illustrative sustainability report: eco home with solar roof, heat pump, rainwater harvesting and net zero progression
Written to the standards your local planning authority expects
Environment Act 2021 (BNG) Part G (110 l/p/d) London Plan G5 (UGF) BREEAM NPPF & PPG
How it works

From drawings to submission.

1

Send us your drawings

Email your existing and proposed drawings and site address to info@clockfortress.com.

2

Get a fixed quote

We come back within 24 hours with a fixed price and a delivery date. There's no advance payment.

3

We prepare your report

Covering every sustainability topic the development plan engages — typically 3–5 working days.

4

Submit with confidence

Receive a planning-ready PDF, backed by our amend-or-refund guarantee if the authority rejects it.

Standards

Built on the framework councils check for.

Every sustainability statement follows the current national requirements.

Environment Act 2021 (10% BNG) Statutory Biodiversity Metric Approved Document G (110 l/p/d) London Plan Policy G5 (UGF) BREEAM NPPF
FAQ

Sustainability statements — explained.

Quick answers to the questions applicants ask us most.

Ask anything
Does 10% BNG apply to my application?
Householder applications are exempt, small habitat impacts fall under de minimis, and from 6 August 2026 sites of 0.2 hectares or less are exempt — check in seconds with the BNG exemption checker on the tools page.
What if I cannot reach 10% on site?
The hierarchy runs on-site first, then off-site units on the market, then statutory credits as the last resort — credits start at £42,000 each and the multiplier doubles what you buy.
What is the 110 litre water standard?
A fittings-based calculation under Approved Document G showing predicted use of no more than 110 litres per person per day where the tighter standard applies.
What is the Urban Greening Factor?
London Plan Policy G5 scores your surfaces — green roofs, planting, permeable paving — against targets of 0.4 for residential and 0.3 for commercial schemes.
Which areas do you cover?
Every UK local authority.
Google Reviews

Rated 5.0 by our clients.

5.0★★★★★Based on 500+ Google reviews across our services
PL
Peter Lindqvist
a month ago
★★★★★
Needed a sustainability statement covering biodiversity net gain and the water calculator. Everything the council wanted was in one tidy, well-referenced report.
KS
Katie Simmonds
3 weeks ago
★★★★★
As a planning consultant I use them across sustainability, energy and daylight. The reports read like the big-name consultancies' work at a fraction of the fee.
GW
Grace Whitmore
2 months ago
★★★★★
The urban greening factor and BNG sections satisfied the design officer on our London scheme. Clear, well-referenced and on time.
DF
Douglas Fraser
3 months ago
★★★★★
Water efficiency and materials were covered exactly as the checklist asked. Got us through validation without a hitch. Excellent value.
Get Started

Get your sustainability statement quoted.

Email your existing and proposed drawings and we'll send a fixed quote and timeframe — usually within 24 hours. No advance payment.

Request a quote020 3807 5825
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