In this guide
Use this material to examine your own work. Confirm current requirements, forms and dates with IStructE before applying.
IStructE provides a defined progression route for existing Incorporated Members. It includes a supplementary examination in place of the full Chartered paper.
Requirements that change between grades
Core Objective 3, Concept Creation and Design, requires Experience at Incorporated-Member level and Ability at Chartered Member level. The other objectives have the same minimum standard in both current guidance documents.
Review whether your evidence shows concept creation and design at Ability level: work performed without supervision and competence to advise others. Separately, practise producing two distinct, viable schemes for an unfamiliar brief under examination conditions. The first concerns your portfolio; the second requires examination preparation.
How to approach it
- 01
Confirm the route with IStructE first
Which elements you must repeat, and which you carry forward, is a decision for the Institution. Get it in writing before you plan.
- 02
Audit yourself against Core Objective 3 at Ability
Use the Core Objective page. Look for concepts you produced and advised on, not concepts you contributed to.
- 03
Get the concept experience if it is not there
This is experience, not writing. If you have been sizing and detailing rather than setting arrangements, that is a development plan measured in months.
- 04
Prepare for the supplementary examination properly
It is a scheme-design paper under time pressure. Practise producing two distinct schemes, appraising them and drawing them: see the examination area.
Questions to ask yourself
- Can I evidence concept creation and design at Ability, rather than Experience?
That is the one place the two grades' minimum standards differ, and it is the substance of the step up. Ability means without supervision, and competent to advise others.
- When did someone last bring a concept problem to me?
It is a more useful test than counting projects. At Ability you are the person consulted, not the person contributing.
- Have I practised producing two distinct schemes for an unfamiliar brief, to time?
The examination is usually the larger piece of work in this route, and it is a different skill from evidencing a career.
- Have I asked IStructE what my route requires?
Which elements you repeat and which you carry forward is a decision for the Institution, and it should be in writing before you plan around it.
Getting the route straight
Official sources
Selected publisher pages were rechecked in September 2026. Other source records were last checked in July 2026. Open the latest official document before relying on a requirement.