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The questions that change the scope.

When does a Phase 1 need to become a Phase 2? When does an elevated result really require remediation? Why can a good infiltration rate still rule out soakaways? Guidance written around the decisions projects actually face.

Featured decision guide

What evidence is actually needed to discharge a contaminated land condition?

Step-by-step guide to discharging contaminated land planning conditions in the UK. Learn about Phases 1–4, compliance, and commercial benefits.

Read the guide · 5 min →

Site investigation

Remediation scheme

Condition discharged

Decision guides

When the answer changes the work.

What should happen next, what can be ruled out, and where interpretation matters more than the report.

Coal Mining Risk Assessments for Planning: When Is Further Investigation Needed?

A practical guide to Coal Mining Risk Assessments for planning, including Development High Risk Areas, desk-based assessment and when further investigation is justified.

BRE 365 Soakaway Testing: More Than an Infiltration Rate

Learn the pitfalls of BRE 365 soakaway testing and how proper planning, ground modelling and interpretation ensure reliable infiltration design and SuDS performance.

Environmental Vendor Surveys - Why They Are Crucial in UK Property Transactions

Environmental vendor due diligence can streamline UK property transactions by identifying contamination and flood risk, protecting asset value and buyer confidence.

Are We Environmental Consultants? Or Are We Report Authors?

Why environmental consultancy should go beyond compliance reporting, with commercially focused advice from due diligence through to remediation.

Do I Need a Phase 3 Remediation Strategy? (And What Is It?)

When a Phase 3 Remediation Strategy is required, what it contains and how practical remediation supports planning and contaminated land management.

From Phase 2 to Remediation: What Happens if Contamination is Found?

What happens when a Phase 2 investigation identifies contamination, from risk assessment and remediation strategy through to verification.

Reference library

Background guides.

Plain-English explanations of the assessments, regulations and terms that come up on development projects.

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Contaminated land

Development

Drainage

Ground gas

Investigation

Planning

Regulation

Remediation

Transactions

Perspective

Why Do You Need a Phase 1 Environmental Assessment for Planning?

Learn why a Phase 1 Environmental Assessment is essential for UK planning. Identify risks early, avoid delays, and protect project costs and approvals.

Contaminated land

What Causes Contaminated Land? A UK Developer and Investor’s Guide

Five common causes of contaminated land in the UK, from industrial legacy to natural risks, with practical guidance for developers and investors.

Infiltration Testing For Soakaway Design in the UK

UK-wide BRE 365 infiltration testing. Accurate rates & suitability comments for SuDS & Building Standards compliance. Results for your drainage engineer.

Understanding UK Contaminated Land Regulations: A Guide for Developers

A practical guide to UK contaminated land laws for developers. Learn how to manage risk, satisfy planning, and unlock value from brownfield sites.

Brownfield Redevelopment: Risks, Costs and Best Practices

Explore brownfield redevelopment risks, regulation and commercial opportunities, including site assessment, remediation and managing abnormal costs.

Ground Gas Risk in Kensington & Chelsea: What Developers Need to Know

Ground gas risk guidance for Kensington & Chelsea developments, including when assessment is needed and how monitoring and mitigation are approached.

What is a Phase 1 Desk Study (Preliminary Risk Assessment)?

What a Phase 1 Desk Study involves, when it is needed for planning or due diligence, and how it identifies contaminated land risks early.

Phase 2 Site Investigation Explained – Methods and Outcomes

Discover methods like trial pits and boreholes with timescales, and how Phase 2 builds on Phase 1 to manage land contamination risks effectively.

Contaminated land

Contaminated Land Assessment: A Complete Guide for Developers and Landowners

Assess land contamination risks to health, property, and the environment with our comprehensive, developer-focused guide to land evaluation

Soakaway Testing: A Developers Guide

What BRE 365 soakaway testing involves, when it is needed for planning, and how infiltration results support SuDS and drainage design.

Environmental Due Diligence: What It Is and Why It Matters for Property Transactions

Environmental risks aren’t always visible but they can cost you. This blog explains what Environmental Due Diligence is and why it matters in property transactions.

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