O’Sullivan Environmental | Northern Ireland
Expert Flood Risk, Drainage & Hydrology Services
Our Core Engineering & Environmental Services
O’Sullivan Environmental are a specialist company focusing on Flood Risk Assessments, Drainage Assessments and CEMPs in Northern Ireland. We combine consulting and regulatory expertise to produce accurate, science-based results for clients of all scales and requirements.
Flood Risk Assessments
Drainage Assessments
Drone Surveys
(LiDAR / Photogrammetry)
Construction Environmental Management Plan (CEMPs
Innovation in Environmental Consultancy
Our innovative, director-led approach allows us to specialise in flood risk assessments, Drainage Assessments and CEMPs, assessing each site individually with in-house technologies to provide the most time and cost-efficient service to our clients.
Flood Risk Assessment
We deliver fully compliant Flood Risk Assessments (FRA) tailored to current Strategic Planning Policy Statement (SPPS) guidelines. Our reports utilize advanced predictive modeling to clear local council bottlenecks and secure rapid planning validations.
Drainage Assessments
Custom engineering solutions designed in strict compliance with DfI Rivers and local planning framework parameters. We specialize in cost-effective Sustainable Drainage Systems (SuDS) to manage surface water runoff safely without over-engineering your site layout.
Drone Surveys
Utilizing high-resolution aerial mapping technology to generate precise 3D topographical site models, map hard surfacing limits, and track exact overland flood flow paths across complex terrain.
Construction Environmental Management Plan
Comprehensive Outline and Final CEMPs engineered to satisfy stringent NIEA pre-commencement planning conditions for complex infrastructure, housing developments, BESS facilities, and commercial sites.
Navigating Your Project Through the NI Planning System
Don’t let environmental conditions delay your construction schedule. Speak directly with a Senior Environmental Consultant today for clear, actionable compliance strategies.
O'Sullivan Environmental Consulting 