Over 15 Years of Regulatory & Private Sector Expertise

Based in Mid Ulster, O’Sullivan Environmental provides specialist environmental engineering and planning compliance services across Northern Ireland, Ireland, and the wider UK.

What sets our environmental consultancy apart:

• NIEA Regulatory Background: Our specialist team includes seasoned professionals with direct, inside experience working within the Northern Ireland Environment Agency (NIEA).
• Efficient System Navigation: We leverage over 15 years of industry experience to navigate complex local area planning systems and clear strict council bottlenecks rapidly.
• Science-Based Results: We are trusted by developers, civil contractors, and industrial clients of all scales to deliver precise, legally defensible results.

In-House Technical Engineering Expertise

To ensure your development proposals strictly align with current statutory frameworks, our staff maintain active memberships with leading professional bodies. This ongoing professional alignment keeps our engineers at the absolute forefront of environmental law, research, and modern site management.

We deliver complete, in-house technical expertise across four primary disciplines:

• Construction Environmental Management Plans (CEMP): Robust Outline and Final CEMPs to clear strict pre-commencement planning conditions.
• Flood Risk Assessments (FRA): Precision hydraulic modeling and river/coastal risk management aligned with current NI planning guidelines.
• Drainage Assessments: Cost-effective Sustainable Drainage Systems (SuDS) and site runoff calculations to avoid over-engineering your layout.
• Drone Surveys (LiDAR & Photogrammetry): Rapid, CAA-authorised aerial mapping to track exact overland flood flow paths and topography.