Habitats Regulations Assessment
A Habitats Regulations Assessment (HRA) establishes whether a project is likely to have a significant effect on protected features of a recognised European protected site. These sites are protected by the Conservation of Habitats and Species Regulations 2017 (the Habitats Regulations).
When do I need a habitats regulations assessment?
Special Areas of Conservation (SAC)
Special Protection Areas (SPA)
Ramsar sites – Although not designated under the Habitats Regulations, Ramsar sites are afforded the same level of protection in policy.
What is the purpose of a HRA?
Site Protection
Compliance


HRA Process
The habitats regulations assessment (HRA) process follows a clear and structured approach:
1 | Screening
This determines whether the project will have a significant effect on the site, either alone or in combination with other projects.
2 | Appropriate Assessment
If significant effects are likely, an Appropriate Assessment is undertaken. This assesses the potential impacts in detail, outlines mitigation measures, and applies an integrity test to determine whether adverse effects on site integrity can be ruled out.
3 | Derogation (if required)
If adverse effects cannot be ruled out, a project may still go ahead under a legal process called derogation. This is only possible if all three of the following tests are met:
No Alternative Routes
Imperative Reason
Compensatory Compliance
Possible Outcomes
Following an HRA, there are several potential outcomes:
No significant effects
Mitigation required
Project Refusal
Why developers choose Ethos?
A dedicated and experienced team
Confident in making informed, on-the-spot decisions to keep projects moving safely and compliantly.
Experienced ecologists
Planning-focused reporting
Expert advice

Rapid response times







