Structural Engineering & Calculations in London
Almost every extension, loft conversion or internal remodel alters the structure of your home — and Building Control will expect the beams, foundations and load paths to be properly designed and justified with calculations. As RIBA Chartered, ARB-registered architects (Reg No. 089055C) we provide structural drawings and calculations alongside our architectural packages, working with trusted structural engineers so your project arrives on site as one fully coordinated set of information.
Structural design for home alterations and extensions
Typical residential structural work includes steel or timber beams for open-plan kitchen and living spaces, picture windows and bi-fold openings; new floor structures and dormers for loft conversions; foundations and retaining structures for extensions and basements; and load-bearing wall removals with the associated padstones and connections. We establish the load paths early in the design so the structure supports the architecture — not the other way round — avoiding late surprises once a contractor is on site.
Structural calculations for Building Control
Where a project alters the structure of a building, Building Control (or your Approved Inspector) will require structural calculations demonstrating that the new and altered elements are adequate — covering beams, lintels, foundations, floor joists and any temporary works implications. We prepare and coordinate the calculation package together with the building regulations drawings so the two are submitted as one, queries can be answered quickly, and your approval stays on programme.
One coordinated design package
Because the structural design is coordinated by the same practice producing your architectural and building regulations drawings, steel sizes, connection details and builder's-work information appear consistently across the whole set. That means fewer contractor queries, more accurate quotes at tender, and less risk of delay or redesign once work starts. Where a party wall is affected — common with beams bearing on shared walls — we flag it early and coordinate the notices alongside the structural information.
Recent structural engineering
A selection of real, completed Shorplans projects.
Basement & Rear Extension Scheme
Fulham, London
SIPS Construction New Build
Kenley, Surrey
Frequently asked questions
Do I need structural calculations for my extension or loft conversion?
Almost always, yes. If your project removes a load-bearing wall, inserts beams, adds a new floor or dormer, or changes foundations, Building Control will require structural calculations to demonstrate the design is safe and compliant. We identify exactly what's needed for your project at the building regulations stage.
Do you provide structural engineering as well as the architectural drawings?
Yes. We provide structural drawings and calculations alongside our architectural and building regulations packages, working with trusted structural engineers and coordinating everything ourselves — so you receive one consistent set of information rather than juggling separate consultants.
When in the process are the structural drawings produced?
Normally after planning approval, as part of the building regulations (technical design) stage. The structural calculations are prepared with the building regulations drawings and submitted together to Building Control or your Approved Inspector, ready for the contractor to price and build from.
Planning a structural engineering?
Tell us about your project and we'll send a free, no-obligation fee proposal tailored to your home and site.
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