Civil Engineering
Civil Engineering Design
Building Services
Structural Design, RAAC, Blast, OBRA & Retrofit
Structural engineering for buildings that are safe, resilient and built to last
Arthian’s building services bring together structural engineering expertise, regulatory alignment and practical delivery insight. From new‑build design to RAAC remediation, blast‑resistant structures, retrofit, OBRA assessments and modular buildings, we support clients across commercial, industrial, public‑sector and complex infrastructure projects.
Our approach is grounded in safety, buildability, carbon awareness and long‑term asset performance.
Building Design
Arthian provides end‑to‑end structural building design for new developments, extensions and complex refurbishments. The result? Buildings that are structurally efficient, safe, compliant and practical to construct.
- Concept and detailed structural design
- Load‑bearing analysis and structural modelling
- Steel, concrete, timber and hybrid structures
- Foundation and substructure design
- Coordination with architecture, MEP and fire engineering
- Buildability and construction sequencing advice
RAAC Inspections & Remediation
Arthian’s structural engineers deliver RAAC inspections, assessments and remediation design for schools, hospitals, local authorities and commercial estates. The outcome? A complete RAAC strategy – from inspection to safe, compliant remediation.
- RAAC identification and condition assessment
- Structural risk categorisation aligned with DfE and NHS guidance
- Temporary propping and safety measures
- Remediation design: strengthening, replacement, over‑sheeting, load reduction and long‑term solutions
- Programme and operational impact advice
- Clear, regulator‑aligned reporting
Blast Resistant Building Design
For high‑risk industrial, defence, energy and critical‑infrastructure environments, Arthian designs buildings that withstand blast loads and protect people and assets. At Arthian, we design buildings engineered to perform under extreme conditions, with safety and continuity at the forefront.
- Blast load assessment and modelling
- Structural design for blast resistance and resilience
- Progressive collapse prevention
- Integration with fire, security and operational requirements
- Material selection and detailing for high‑performance environments
OBRA (Occupied Building Risk Assessment)
OBRA is essential for sites where occupied buildings sit near hazardous operations. Arthian provides OBRA assessments that are technically robust, regulator‑aligned and practical for operators – a clear, defensible understanding of building risk, and a roadmap to reduce it.
- Hazard identification and risk screening
- Assessment of building vulnerability to explosion, fire and toxic release
- Structural robustness evaluation
- Mitigation strategies and upgrade recommendations
- Integration with COMAH, DSEAR and safety case requirements
Retrofit & Refurbishment
Retrofitting existing buildings is one of the most effective ways to reduce carbon, extend asset life and unlock new value. Arthian provides structural engineering for retrofit and refurbishment across commercial, industrial and public‑sector estates.
- Structural appraisal of existing buildings
- Load‑path analysis and strengthening design
- Alterations, extensions and change‑of‑use engineering
- Integration with energy upgrades, fabric improvements and MEP changes
- Construction‑phase sequencing and temporary works input
Structural Condition Surveys & Defect Assessments
Arthian provides structural surveys that diagnose defects, assess risk and guide maintenance or remediation.
- Visual and intrusive structural surveys
- Defect diagnosis: cracking, movement, corrosion, water ingress, settlement
- Load capacity checks and structural modelling
- Remediation and strengthening recommendations
- Clear, prioritised reporting for asset owners and insurers
Modular Buildings
Modular and off‑site construction demands precise structural engineering and early coordination. Arthian supports modular building projects from concept to installation.
- Structural design for modular units and frames
- Connection design and interface detailing
- Foundation and substructure engineering
- Transport, lifting and installation considerations
- Integration with traditional construction and hybrid systems
Why choose Arthian for building services?
- Multidisciplinary structural expertise across new‑build, retrofit, RAAC, blast and modular.
- Clear, actionable engineering that supports design, construction and long‑term asset management.
- Strong regulatory alignment with DfE, NHS, COMAH, DSEAR, Building Regulations and industry standards.
- Buildability and carbon‑aware thinking embedded from the outset.
- Trusted by public‑sector, industrial and commercial clients across the UK.
Ready to discuss your building project?
Arthian supports clients across the full building lifecycle — from concept design to surveys, remediation, blast resilience and retrofit. Speak to our experts today.
