@killyourfm As in revenue from the farm? I'd say it's livable. We currently have a guy that works there and we go check every week or so. But it's certainly not enough to live peacefully (if you know what I mean)
If you assume that by the time you retire you have enough money (and you can live off interest from bank / have shares etc.) then the land is certainly enough.
(Ours is an orange farm)