"JK" wrote in message
Is it possible to lay a lawn on a roof terrace? How would one do it? I
imagine drainage would be an issue, but maybe there's a way round it.

Do an internet search on "green roofs", lots of details there, it's very
popular on the continent for new buildings and will get more so here idc.
Less long-term environmental damage.

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Regards
Bob

Some photos of my plants at.....