Why is the service charge on this flat so much?

[EachandEveryone]

Can you believe I walked past this very house on my way back from hospital today and I told myself if I ever won the lottery I will buy a flat down this little roas. So I got my ticket and just went on Right Move whilst dinner is cooking. Its the very same one I admired this morning! Well I can easily afford it with my 20 million and be at work in five minutes. However, I think Im too stingy to pay a £300 service charge per month. Who does that go to and what is it for? Ive only ever seen it attached to purpose built flats. Even without my fantasy I still want to know what its for and can they just put it up? https://www.rightmove.co.uk/properties/136646480#/?channel=RES_BUY

Insurance, facade maintenance, contribution towards major works (roof/external redecorations), etc. Compliance with the new building safety act? Company secretarial services for the freehold company. Accounts preparation.

Depends on the lease really.

The leaseholder is planning on reroofing the property using solid gold tiles?

Well if a person can afford over £2 million for a flat I don't think they would worry about £300 a month service charge.

Council tax band G too, very steep for an apartment. Would have thought that would be the whole property.

It says share of freehold but there's a lease of 999 years from 1991, with a commencement of lease from 2015. What does that mean?

Maybe they have a professional gardener for the front? It would be sensible to build up a maintenance fund.