Loft conversion (High Gate, North London)
The structural calculations behind this project, prepared by our engineers for building control.
Project Overview
Location
High Gate, North London
Project Type
Loft conversion
Structural Services
Detailed Calculations
Compliance
Building Regulations
Loft Conversion – Highgate, North London
This Highgate home has been transformed with a new loft conversion, adding valuable extra living space while maintaining the structural integrity of the property. Due to restricted access into the loft space, the client opted for timber flitch beams instead of traditional steel beams, requiring careful structural engineering to ensure stability and compliance.
To support this project, PorthouseDean provided expert structural calculations, designing load-bearing timber flitch beams, floor reinforcements, and roof modifications to achieve a safe and efficient build.
Maximising Space with Smart Structural Design
This loft conversion included:
✅ A fully reinforced loft floor – Designed to support the new living space
✅ Timber flitch beam design – Providing structural support with easier installation access
✅ Load-bearing wall modifications – Ensuring stability while maintaining open-plan potential
✅ Maximised natural light – Skylights introduced to enhance brightness and ventilation
What we did
Our contributions included:
✔ Structural calculations for the loft conversion – Ensuring safety and compliance
✔ Flitch beam design – A practical alternative to steel beams for limited access spaces
✔ Load-bearing wall assessments – Safely modifying existing structures
✔ Roof and floor reinforcement – Strengthening the loft for long-term durability
With expert structural engineering, this Highgate home now benefits from a well-designed, functional, and structurally sound loft conversion, perfect for extra bedrooms, a home office, or additional living space.
Thinking About a Loft Conversion? Let’s Make It Happen!
At PorthouseDean, we provide expert structural calculations for loft conversions, timber and steel beam designs, and open-plan renovations.
📍 Providing structural engineering across Highgate, Hampstead, and North London.
Why Extend Your Home?
More Space, More Possibilities
Create an open-plan kitchen, a family hub, or a bright entertaining space.
A Date You Can Plan Around
You choose the delivery date, and the price follows the date.
More Natural Light
A wider opening to the garden needs a beam sized for the load above it. The calculations set that size.
Personalised Design
Every house is built differently. The calculations work from your drawings and the structure you already have.
How PorthouseDean Supports Your Project
Every project is different, but the need for precise, reliable structural calculations remains the same. Our engineers work with:
Homeowners
Ensuring designs are safe, cost-effective, and practical.
Architects
Providing calculations that allow for creative yet compliant designs.
Builders
Making sure construction runs smoothly with clear, reliable specifications.
Planning Your Own Project?
More than 9,000 projects since 2012 have run through the same process. You get a fixed price before you commit, and you choose the delivery date.
📩 Get a QuoteStructural Engineering Services We Offer
Structural Calculations for Loft Conversions
Calculations for the floor, beams and roof changes a loft conversion needs.
Structural Calculations for Wall Knock-Throughs
Beam and support calculations for taking out a wall.
Structural Calculations for Extensions & New Builds
Calculations for foundations, walls, beams and roofs on extensions and new builds.
Structural Calculations for Bi-Fold Doors & RSJs
Beam and padstone sizes for wide openings and bi-fold doors.
Structural Drawings & Building Control Calculations
Complete documentation to help you achieve smooth Building Control approvals.