Looking for a reliable Structural Engineer near you?

We are your trusted, UK-based structural engineers, providing professional expertise for projects of any size.

Our core services include expert structural calculations, designs, and reports for:

All of our work is guaranteed to be fully compliant with UK building regulations.

We offer flexible service options: utilize our efficient remote nationwide service or book an on-site visit where necessary.

Ready to start your project? Call us today: 0777 464 0260

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Home Extension

Structural Engineering for Home Extensions

Planning to expand your home? Whether it’s a front porch, a side build-out, or a large rear kitchen extension, ProStructural Design provides the certified technical documents needed for a successful build. We ensure your extension is safe, cost-effective, and fully compliant with Building Regulations.


🏗 Our Extension Structural Package

We provide the essential technical drawings and calculations that your builder and local authority require:

  • Custom Foundation Design: Site-specific calculations for strip, raft, or trench fill foundations based on your ground conditions.
  • Beam & Lintel Design: Precise sizing for RSJs and lintels, essential for creating wide, open-plan spaces.
  • Roof & Superstructure: Structural design for new roof timbers, rafters, and masonry walls to ensure long-term stability.
  • Load-Bearing Evaluations: Assessment of how the new extension interacts with your existing home's framework.
  • Full Building Control Documentation: A complete package of calculations and plans for immediate submission to your local authority.

Starting an Extension Project?

Ensure your project is legally compliant and structurally sound from the very first brick. Get your fixed-price quote today.

Request Your Fixed-Price Quote Now

Why Partner with ProStructural Design?

We work as your technical partner, collaborating directly with homeowners, architects, and builders to bring your vision to life.

  • Cost-Effective Solutions: We focus on smart engineering that avoids over-spending on materials while maintaining 100% safety.
  • Direct Collaboration: We help bridge the gap between architectural aesthetics and structural reality.
  • Speed & Reliability: Our efficient process ensures you get your drawings back quickly, keeping your construction schedule on track.
  • Maximized Space: Our engineering solutions are designed to help you get the most usable floor area from your new extension.

Contact ProStructural Design

Email: info@prostructuraldesign.com
Phone: +44 777 464 0260

Ready to add value and space to your home? Let us handle the complex engineering required for a safe and buildable extension.

Secure Your Structural Design Today.

Email your architectural plans for a fast, professional review and quote.

Email Your Extension Plans

Get in Touch

We’re here to help with all your structural engineering needs — from wall removals and loft conversions to new builds and extensions.

Contact Details

Email: info@prostructuraldesign.com
Phone: +44 777 464 0260

Business Hours

Monday – Friday: 9:00 AM – 5:00 PM
Saturday: 9:00 AM – 1:00 PM
Sunday: Closed

Let’s Talk
Tell us about your project or ask a question — we typically reply within 24 hours.