About Us

Welcome to RZA Structures Ltd​

Who Are We​

RZA Structures Ltd is based in Colchester and supports clients across Essex, Suffolk and London. Our professionally qualified structural engineers assist with a wide range of projects, from small home alterations to larger residential and commercial schemes. We focus on providing clear and practical advice that helps clients understand their options and ensures each design is safe, well considered and suited to the needs of the project.

Our structural engineers are approachable and committed to a high standard of service. We work closely with homeowners, architects and contractors and keep communication open from the first enquiry to the final design. Each project is reviewed on its own requirements so the structural solutions we deliver are reliable, efficient and appropriate for the intended construction.

What We Do

Structural design and analysis for new-build and refurbishment projects
Steel, concrete, timber and masonry design to Eurocodes and British Standards
Design of foundations and retaining walls
Structural calculations and drawings for Building Control approval
Load-bearing wall removals, beam and lintel design
Loft conversions, extensions, and alterations
Structural inspections and defect diagnosis
Site visits, surveys and on-site structural advice
Collaboration with architects, contractors and developers throughout design and construction
Expert Witness services

Why Choose Us:

Client Focused
Competitive Prices
Transparent, buildable designs
Fast turnaround with clear communication
Our Chartered Engineers are registered with the Engineering Council​
We are professionally qualified members of the Institution of Structural Engineers (IStructE)
All designs comply with the relevant UK Building Regulations
We maintain full Professional Indemnity Insurance for all our structural engineering services.

Our 6-Step* Structural Engineering Process​

*Most residential projects are completed within the first four stages, providing a full set of structural calculations and drawings for Building Control approval. Stages 5 and 6 are available as additional support during construction and post-completion review.

01.

Consultation​

We start by listening — understanding your project, objectives, constraints, and key design drivers.

02.

Site Assessment​

Review of site information, existing structures, ground conditions, and any available surveys or drawings.

03.

Concept Design

Preliminary design options developed to establish viable structural solutions aligned with architectural intent.

04.

Detailed Design​​

Full structural analysis, design, and drawings prepared for Building Control and construction.

05.

Coordination & Support​

Ongoing technical input during tender and construction, liaising with architects, contractors, and inspectors.

06.

Delivery & Review​

Final design checks, as-built documentation, and post-construction review to ensure compliance and quality.

Would you like to start a project with us?​

Make the right structural move.
Request your free quotation today.

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