score:2
As per the GOV.UK website:
Contact the visa application centre where you applied if you’re outside the UK and there’s a change to your:
•reason for going to the UK
•address
•personal details, for example your name, because you got married
You may need to make another visa application at your local visa application centre.
Which means, as long as you're a genuine visitor, you only need to declare changes of address or personal details.
That said, regarding finances, it is your responsibility to ensure you can support yourself during a visit without resorting to employment or public funds, and that you can prove it on request at the border. If you can't, and they catch you on it, your visa will be cancelled.
Several of the other things you mentioned would have to be reported if you were a UK resident, but not if you're a visitor.
Upvote:2
It depends on the specific visa but for example for a Tier 1, 2, 4 or 5 visa a change of circumstances is defined as:
- personal details
- criminal convictions
- contact details
- representative’s details
- dependants’ details
- any other information you think UKVI should know
For a biometric residence permit (BRP) a change of circumstances is defined as:
- address
- name, for example if you’ve got married
- nationality
- facial appearance
- date of birth, for example if it was wrong
- gender
- you get a criminal conviction
- you separate from your partner
- any of your children stop living permanently with you