Dormer, hip-to-gable, and mansard conversions for Barnet homes.

Structural Engineering for Barnet Loft Conversions

We specialise in the structural design for all types of loft conversions across Barnet. From popular dormer conversions on terraced houses in Hendon to complex hip-to-gable extensions on semi-detached properties in Whetstone, we provide the essential engineering expertise. Our designs maximise habitable space while ensuring the structural integrity of your home, delivering a full set of calculations and drawings for Building Control approval and construction.

Local Challenges

Loft Conversions in Barnet

A key challenge in Barnet's housing stock, particularly the 1920s and 30s properties, is that existing roof structures were not designed to support a habitable floor. Our work involves designing new floor joists and steel beams to transfer the new loads safely down to the property's foundations. We also address potential planning constraints on the size and appearance of dormers, particularly in conservation areas, by providing efficient structural schemes that work within the architect's approved design.

What You Get

  • Steel ridge beam and floor beam calculations
  • New floor joist specification and layout
  • Rafter strengthening and dormer cheek design
  • Calculations for trimming new staircase openings
  • Full structural drawing package for construction
  • Connections and structural details

Tailored Pricing

Request a Fee Proposal

Every project is unique. Share your drawings with us and receive a detailed fee proposal tailored to your loft conversions project in Barnet.

Recent Project

Mill Hill, Barnet

For a semi-detached property, we designed the structure for a hip-to-gable and rear dormer loft conversion. This created a large master bedroom and en-suite. The design involved a key steel ridge beam and careful detailing to maximise headroom over the new staircase.

Common Questions

Loft Conversions in Barnet — FAQ

Ready to Engineer Your Project?

Get a bespoke consultation with a structural engineer who specialises in loft conversions in Barnet.