Planning Permission and Building Control: Structural Engineering Guide for Home Projects
Many homeowners mix up planning permission and Building Control. They are different processes, and structural engineering is often essential for Building Regulations compliance.
This guide explains where your structural engineer fits and what to prepare for smoother approvals.
Planning Permission vs Building Control
- Planning permission focuses on what you are allowed to build (use, appearance, impact).
- Building Control focuses on whether it is structurally safe and regulation-compliant.
You may need one or both depending on your project.
Where Structural Engineering Is Required
Common examples:
- loft conversions
- rear/side extensions
- load-bearing wall removal
- chimney breast removal
- basement conversions
In these cases, structural calculations are usually required for Building Control.
Typical Structural Documents
Your engineer may provide:
- structural calculations package
- beam/foundation/support details
- design assumptions and compliance notes
- coordination comments for architectural drawings
Submitting clear technical information upfront reduces review delays.
How to Keep Approvals Moving
- Finalize architectural intent first.
- Add structural engineering early.
- Submit coordinated drawings and calculations.
- Keep scope changes controlled after submission.
- Ensure contractor follows issued structural design.
Frequent Causes of Delay
- missing structural details in submission
- late engineering appointment
- mismatch between drawing set and calculations
- unrecorded on-site changes
A coordinated team avoids these bottlenecks.
Areas We Cover
SBS supports planning and Building Control engineering across:
Explore related services:
FAQ
Do I always need planning permission for home alterations?
Not always. Some works may fall under permitted development, but Building Control requirements can still apply.
Is Building Control where structural calculations are usually checked?
Yes. Structural calculations are typically reviewed as part of Building Regulations compliance.
Should architectural drawings and structural calculations be submitted together?
In most projects, yes. Coordinated submissions reduce review queries and approval delays.
Related Reading in This Series
- Home Extension Structural Calculations Guide
- Loft Conversion Structural Engineer Guide
- RSJ and Steel Beam Calculations in London
- Party Wall Structural Advice Guide
- How Much Does a Structural Engineer Cost in London?
Need Structural Engineering for Your Submission?
SBS Structural and Architectural Design provides practical structural design packages for residential approvals and compliant construction.
To discuss your project:
- call +44 7401 650 600
- email sbs.structures@gmail.com
- visit SBS Structural and Architectural Design