Soil Information for Design
Only considered within a wider design appointment, subject to prior approval.

Soil Assessments Within a Wider Design Appointment
GC Robertson does not offer geotechnical site investigations or standalone soil investigation services. Limited soil-related assessment may be considered only as part of a wider structural or civil engineering design appointment, where relevant, and is subject to prior approval.
Where soil information is needed to inform foundation design, we will confirm the appropriate scope as part of the overall project. Specialist geotechnical investigations, testing, boreholes or reports must be arranged separately where required.
How Soil Information May Support an Agreed Design Scope
• Review of available ground information supplied for the project.
• Consideration of local ground conditions when developing foundation design.
• Review of relevant findings provided by separately appointed specialists.
• Foundation recommendations within the agreed structural design scope.
• Advice on when specialist geotechnical input is required.
Regional Coverage Across East Anglia
Providing structural and civil engineering services across Suffolk, Norfolk and Essex, with Cambridgeshire enquiries considered only in limited cases.
Suffolk – Southwold, Aldeburgh, Felixstowe, Ipswich, Bury St Edmunds, Lowestoft, Newmarket, Sudbury, Stowmarket, Woodbridge & beyond.
Norfolk – Norwich, King’s Lynn, Great Yarmouth, Thetford, Dereham, Cromer, Wymondham, Downham Market & beyond.
Cambridgeshire – limited project enquiries considered subject to scope and availability.
It’s best to involve GC Robertson at the start of your project. Early input helps identify structural solutions, avoid costly design changes, and ensure your plans meet Building Regulations.
Yes, extensions require structural design and calculations for approval. GC Robertson provides the drawings and reports needed to make your extension safe, compliant, and buildable.
Loft conversions almost always require structural input. We design the beams, floors, and supports to ensure your new living space is structurally sound and meets regulations.
No, it’s unsafe to remove a load-bearing wall without professional design. GC Robertson specifies the correct beams and supports so alterations can be carried out safely and approved by Building Control.
A structural survey is a detailed inspection of a property’s structure. GC Robertson provides clear reports on issues such as cracks, movement, or subsidence, along with practical recommendations.
Many projects fall under Permitted Development and don’t need planning permission. However, Building Regulations approval is always required, and GC Robertson supplies the calculations and drawings for compliance.
Often both are needed. Your architect creates the design, while GC Robertson ensures the structure can be built safely and cost-effectively.
Yes. Our engineers design foundations suited to your site conditions, ensuring your extension is stable, compliant, and built to last.
GC Robertson provides detailed structural drawings and calculations. These documents are used for Building Control approval and guide your contractor during construction.
Early involvement allows us to test feasibility and identify cost-effective solutions. This means smoother approvals, fewer delays, and designs that are practical from the start.
FAQs on Working With GC Robertson
Quick answers on our structural surveys, designs, and services.
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Structural and Civil Engineers for Planning, Design and Compliance in East Anglia
Since 1974, GC Robertson has delivered structural and civil engineering solutions across Suffolk, Norfolk, and Essex.
From structural surveys and bespoke design to foundations and alterations, our team provides practical, buildable solutions that support residential, commercial, and industrial projects across East Anglia.

