PS Structural Ltd delivers specialist structural engineering support for loft conversions from initial load assessments to full Building Control-compliant drawings. Whether you're planning a dormer, mansard, or hip-to-gable conversion, our expert team ensures your project meets all structural safety standards, while maximising headroom, usability, and resale value.
With over 10 years of experience in residential structural engineering, we've delivered hundreds of successful loft conversion designs from simple attic upgrades to complex dormer extensions and mansard transformations. Our proven process ensures safe load transfer, efficient floor layouts, and full Building Control compliance.
Loft conversions must be structurally sound to support new loads and modifications. Poor design risks delays, building control rejections, or structural failure. Our team provides:
Adding a bedroom through a loft conversion can increase your home's value by 10-20%, providing one of the best returns on investment for home improvements.
A loft conversion involves transforming your unused attic or roof space into a functional room often a bedroom, office, or living area. It maximises your existing structure without increasing your home's footprint.
Our structural designs ensure your conversion meets all current building regulations for safety and energy efficiency.
This is a real project delivered by PS Structural Ltd, covering the full scope of structural engineering for a residential loft extension.
We supported the client from initial structural survey to final sign-off, producing full structural design for:
Our work ensured full Building Control compliance, while enabling the architectural team to maximise internal headroom and usable floor area.
Scaffolding and timber roof framework during active loft extension construction. Structural steel ridge beams and spliced timber members were designed to enable safe load transfer, maintain internal headroom, and allow clear installation access even on a restricted site.
A structural steel ridge beam was designed and installed to support roof load transfer while maintaining maximum usable head height. This allows for a full-width loft room without central supports.
Engineered timber joists were detailed to span across the loft floor, with integration to a concealed steel beam below for load distribution and compliance with floor deflection limits.
New timber rafters were installed to form the roof pitch, ensuring safe load transfer to structural beams and proper diagonal bracing to prevent lateral movement.
Once structural works were complete, internal areas were fully plastered and sealed, providing a dry, level interior ready for final finishes, first-fix electrics, and plumbing.
Our structural designs were tailored to the site’s unique conditions and construction sequencing, ensuring minimal disruption to the property and seamless integration with the contractor’s methods.
We delivered:
At PS Structural Ltd, we combine technical precision with practical solutions — helping homeowners, developers, and architects bring loft spaces to life with confidence. Whether you're planning a small attic room or a full dormer extension, we provide the structural calculations and support needed to get Building Control approval and ensure long-term safety.
With hundreds of successful projects delivered, we’re ready to support your next loft conversion — from initial concept to structural sign-off.
Speak directly with a chartered structural engineer today.
