What an admissions tutor is actually reading for
One question, mostly: is this person going to cope with, and enjoy, three years of this subject? Everything useful in a statement is evidence for that. Everything else is filler competing for the same limited space.
That reframing kills several myths at once. A dramatic opening line is not evidence. A list of positions held is not evidence. A paragraph explaining that you have been passionate about the subject since childhood is not evidence, because every applicant writes it and none of them can be checked.
Evidence looks like specifics
The reliable pattern is: something you did, what it made you think, and what you did next because of it. A book you read and the specific argument you disagreed with. A project that broke and what you changed. A module you found hard and how you got through it. These are unfakeable and they are interesting, which are the same property viewed from two sides.
A useful test: could another applicant copy your sentence into their own statement without changing anything? If yes, it is not evidence about you.
Structure, roughly
Most of the statement should be about the subject and your engagement with it. A smaller part can cover relevant experience — work, volunteering, anything where the relevance is to the course rather than to your character in general. A short close on what you want to do next is enough; you do not need a conclusion that restates the whole thing.
- Why this subject — with evidence, not adjectives
- What you have done about it — reading, projects, work, competitions
- What that taught you — the reflection is the part being assessed
- Relevant experience — relevant to the course, not to your personality
- Where you are heading — briefly
Drafting
The first draft is never the one you send, and it is not supposed to be. Write it long and badly, then cut. The cutting is where the statement is actually made: everything generic goes, everything specific stays, and what remains is usually both shorter and considerably stronger.
One statement goes to every course you apply to, so it has to work for all of them. If your choices are too different for one statement to serve them honestly, that is useful information about your shortlist rather than a writing problem.