Structural Calculation Services in London

Securing professional Structural Calculations is a critical technical requirement for ensuring the safety and legal compliance of any construction project. Whether you are removing an internal load-bearing wall, adding a loft conversion, or building a new extension, these calculations provide the mathematical proof that your structure is sound. Our specialized engineering services bridge the gap between architectural vision and physical reality, ensuring that your building is stable, safe, and fully compliant with UK Building Regulations. This isn’t just a set of numbers; it is your guarantee that mortgage lenders, building control officers, and future buyers will have complete confidence in the structural integrity of your property.

What are Structural Calculations?

Structural calculations are detailed reports produced by a structural engineer that specify the materials, sizes, and support types needed for a building project.

Ensures Stability: They provide the exact specifications for beams (RSJs), foundations, and joists to ensure the building can support all loads.
Building Control Requirement: These calculations are a mandatory submission for Building Regulations approval in the UK.
Technical Accuracy: Unlike general design, these are based on precise physics and engineering standards to prevent future structural failure.
Investment Protection: They act as your shield against expensive structural surprises or enforcement action during construction.

Types Of 3D Architectural Design

Certificate of Lawfulness – Proposed Development

(CLOPUD)

Get legal peace of mind before you build. This certificate confirms that your planned extension, loft conversion, or outbuilding falls under “permitted development.” It’s a vital step for ensuring your investment is legally protected before work begins.

Certificate of Lawfulness: Existing Development

(CLEUD)

Formalize what’s already there. A CLEUD confirms that an existing structure or use of land is lawful. This is essential for works completed without prior planning permission that have been in place for more than four years (or ten years for changes of use).

When You Need Structural Calculations

You typically require professional engineering reports when your project involves structural modifications, such as:

Our Structural Calculation Engineering Process

We provide a streamlined service that combines technical expertise with deep knowledge of construction standards.

Structural Assessment

We review your architectural plans to identify the necessary structural interventions

Detailed Calculations

We produce a comprehensive report including beam sizing, load analysis, and connection details.

Technical Drawings

You receive professionally prepared structural layouts that builders can follow on-site

Liaison with Building Control

We provide the necessary documentation to ensure your project passes council inspections without delays.

Why Choose Online Architectural Services

Navigate London’s planning regulations with confidence. Our experienced team handles all aspects of planning applications.

London Borough Expertise

Deep knowledge of all 32 London boroughs and their specific planning requirements

High Approval Success Rate

Proven track record of successful LDC applications across London

Council-Compliant Drawings

Professional architectural drawings that meet all local authority standards

Fixed Pricing

Transparent, competitive pricing with no hidden fees or surprises

Fast Turnaround

Quick preparation and submission to meet your project timelines

Related Services

Building Regulation Drawings

Compliant technical drawings for building control approval.