Structural Engineering Consultants


Welcome to SCB Structures, where we are passionate in shaping the world with smart structural engineering.

We are not your average firm.

We are committed to finding innovative solutions that work for our clients.

Whether it is adding intricate residential extensions or tackling major developments…

We are equipped with the skills and the know-how to get it done right!


Aspect House

London Road

Nashlea Farm

Frequently Asked Questions

If you intend to build a new dwelling or alter an existing building, a structural engineer is the professional responsible for ensuring that the structure is safe, stable, and built to withstand various loads and environmental conditions following the Code of Practices.

The structural calculations will allow to discharge of Building Control conditions and the structural drawings will help both architects and contractors to build safely your project.

Structural engineers also help building owners with subsidence, cracks and structural movement, providing remedial works and reports.

“Building Regulations establish the basic requirements for the design, construction, and modifications of nearly all buildings. These standards are formulated by the UK Government and ratified by Parliament. The Building Regulations 2010 outline guidelines for constructing and expanding buildings, complemented by Approved Documents. It’s important to note that obtaining Building Regulations Approval is separate from acquiring Planning Permission, and your project requires both.”

“Construction (Design and Management) Regulations 2015.

These are Health and Safety Regulations in the UK that aim to ensure construction projects are carried out safely, from start to finish. The regulations place duties on everyone involved in a construction project, including clients, designers, contractors, and workers, to manage health and safety risks effectively. The key principles include appointing the right people for the right jobs, ensuring coordination and communication throughout the project, and providing relevant information.”

“A principal designer is a designer who is an organisation or individual (on smaller projects) appointed by the client to take control of the pre-construction phase of any project involving more than one contractor.

Principal designers have an important role in influencing how risks to health and safety are managed throughout a project. Design decisions made during the pre-construction phase have a significant influence in ensuring the project is delivered in a way that secures the health and safety of everyone affected by the work.

Principal designers must:

  • plan, manage, monitor and coordinate health and safety in the pre-construction phase. In doing so they must take account of relevant information (such as an existing health and safety file) that might affect design work carried out both before and after the construction phase has started
  • help and advise the client in bringing together pre-construction information, and provide the information designers and contractors need to carry out their duties
  • work with any other designers on the project to eliminateforeseeable health and safety risks to anyone affected by the work and, where that is not possible, take steps to reduce or control those risks
  • ensure that everyone involved in the pre-construction phase communicates and cooperates, coordinating their work wherever required
  • liaise with the principal contractor, keeping them informed of any risks that need to be controlled during the construction phase

On a domestic client project where the domestic client does not appoint a principal designer, the role of the principal designer must be carried out by the designer in control of the pre-construction phase. When working for a domestic client, the client duties will normally be taken on by another dutyholder (often the principal contractor on projects involving more than one contractor). However, the principal designer can enter into a written agreement with the domestic client to take on the client duties in addition to their own.”


“A domestic client is any individual who has construction work carried out on their home, or the home of a family member, that is not done as part of any business. While CDM 2015 places client duties on commercial clients in full, such duties for domestic clients normally pass to:

  • the contractor, if it is a single contractor project, who must take on the legal duties of the client in addition to their own as contractor. In practice, this should involve little more than what they normally do in managing health and safety risks
  • the principal contractor, for projects with more than one contractor, who must take on the legal duties of the client in addition to their own as principal contractor. If the domestic client has not appointed a principal contractor, the client duties must be carried out by the contractor in control of the construction work

If a domestic client has appointed an architect (or other designer) on a project involving more than one contractor, they can ask them to manage the project and take on the client duties instead of the principal contractor. The designer then takes on the responsibilities of principal designer and must have a written agreement with the domestic client, confirming they have agreed (as principal designer) to take on the client duties as well as their own responsibilities.

Any designer in charge of coordinating and managing a project is assumed to be the principal designer. However, if they do not have a written agreement with the domestic client to confirm they are taking on the client duties, those duties automatically pass to the principal contractor.”


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Spa House, 69 Southend Road
​Hockley, Essex, SS5 4PZ