Structural Calculations and Building Regulations Part A

Daniel Nikolla

Oct 20

2 min read

Updated: 7 days ago

Part A of the Building Regulations covers structure. If your work affects the structure of a building, Building Control will want evidence that the design is safe.

Structural calculations are that evidence, and getting them right first time keeps your application moving.

What Part A requires

In simple terms the building must carry its loads safely and without excessive movement, and alterations must not make the building less safe than before. This applies to walls, floors, roofs, foundations and the way they connect.

What calculations show

Calculations demonstrate that beams, lintels, foundations and other elements are adequate for the loads they carry, using recognised design standards. They also record the assumptions behind the design.

Calculations and drawings together

Calculations on their own are not enough. Drawings show sizes, positions and details so the builder can build what was designed and the inspector can check it.

Submitting to Building Control

Calculations and drawings are submitted with your application. Complete, clear information avoids queries and delays, particularly where an inspector wants to understand load paths on older buildings.

Changes during the build

If the design changes on site, tell the engineer. A small change to a beam or opening can alter the calculations and may need Building Control to be informed.

Talk to Graal

Planning work on your home or a small development? Graal Structural Engineering provides structural design and project management support across North London. Call 07737188754 or request a free quote through our contact form and we will tell you what is needed and what it is likely to involve.