Would you buy a freehold property with a rentcharge?

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Rentcharge on a freehold property seems similar to leasehold to me, but I guess it's not? Would you buy it and think it's freehold or not?

Completely different. Further more you can redeem your rent charge for little money and I think the government still handles it all for you so no legal charges. I think most rent charges are redeemeded for around £200-300 all in.

I've lived in two houses with rentcharges. The person charging the rent charge, also called chief rent, is not the freeholder and has no other interest in the land. Pretty sure there is no scope for the rentcharge to be increased either.