Structural Engineering

Structural calculations and designs for safe, compliant construction.

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Planning World

A faster, smarter, more affordable way to get planning permission anywhere in the UK.

Structural engineering ensures your project is safe, stable, and fully compliant with Building Regulations. Whether you’re removing a load‑bearing wall, adding an extension, converting a loft, or building a new home, you need accurate structural calculations and drawings to satisfy both your builder and your local authority.

Planning World provides fully engineered solutions, coordinated with your architectural drawings and tailored to your project’s specific requirements.

When you need Structural Engineering

Structural input is required for:

Removing internal load‑bearing walls
Installing steel beams (RSJs), box frames, or goalpost frames
Loft conversions and dormer extensions
Single‑storey and double‑storey extensions
New build homes and annexes
Foundations and underpinning
Roof alterations and structural strengthening
Chimney breast removals
Converting a house into flats
Building Regulations submissions

If your project involves altering the structure of the building, you will need structural calculations.

For Structural Engineering

What your structural package includes

A typical structural engineering package includes:

Structural calculations for beams, joists, rafters, and supports
Steel beam (RSJ) design
Padstone and bearing details
Foundation design and load assessments
Structural layout drawings
Connection details
Wind load and point load analysis
Coordination with architectural and Revit drawings
Building Regulations‑ready documentation

All calculations are produced to UK standards and accepted by Building Control.

Our process

A coordinated, accuracy‑driven workflow:

Review of architectural drawings We assess your plans, load paths, and structural implications.
Site survey (if required) We inspect existing structure, materials, and constraints.
Structural design Beams, frames, foundations, and supports are engineered to specification.
Calculations & drawings We produce Building Regulations‑ready documents and structural layouts.
Building Control submission We prepare documents for approval and respond to any queries.

Fees

Typical fees start from:

£295–£495 for single beams or wall removals
£495–£895 for loft conversions
£695–£1,495 for extensions
£1,495+ for new builds or complex structures

A fixed quote is provided after reviewing your drawings.

Borough‑specific considerations

Structural requirements vary depending on local policy, building age, and construction type. We specialise in:

Kensington & Chelsea — older buildings, heritage structures, complex load paths
Westminster — façade retention, basement structures, conservation constraints
Camden — terraced properties, party wall implications, roof alterations
Lancashire authorities — traditional masonry, foundation upgrades, extensions
Conservation areas — structural solutions that preserve original fabric

Your structural design is tailored to your building type and borough requirements.

Common mistakes to avoid

Projects often face delays or Building Control rejections when:

Builders remove walls without calculations
Beams are undersized or incorrectly supported
Architectural drawings and structural drawings don’t match
Load paths are misjudged
Foundations are not designed for soil conditions
No structural engineer is involved in loft conversions

Planning World eliminates these risks with fully engineered, compliant solutions.

Positive Feedback

10-day Turnaround

Fixed Pricing From

Why choose Planning World

- Structural calculations and drawings for all project types
- Coordination with Revit models and laser scan surveys
- Fast turnaround for urgent projects
- Building Regulations‑ready documentation
- Borough‑specific expertise
- Clear communication with your builder

Related services

3D Revit Drawings

3D Laser Scan Surveys

Building Regulations

Full Planning Applications

Yes — any load‑bearing wall removal requires engineered calculations.

Yes — we can work from your architect’s plans or create new drawings if needed.

Not always. For simple beams, drawings may be enough. For complex structures, a visit is recommended.

Yes — all calculations meet UK standards and are accepted by Building Control.

Ready to get started?

Book a consultation and we’ll review your drawings, confirm structural requirements, and provide a fixed quote for your structural engineering package.

Ready to get started?

Book a consultation and we’ll review your drawings, confirm structural requirements, and provide a fixed quote for your structural engineering package.