Hello,
I am still not sure if €240,000 would be enough. We pay around €210,000 for our house (similar size, straight architecture, without any frills) WITHOUT a basement, WITHOUT a fireplace and stove, and WITHOUT a carport!!!
We were offered a basement (WU concrete) for about €50,000 - without earthworks! A double carport with a gable roof (this is required in our area) would also cost around €12,000, maybe a bit less. Honestly, I haven't compared prices further.
Leaving the plot of land aside, I would say that with €240,000 you get a nice (big!) house - on a slab foundation. Then you still have €30,000 - €40,000 for ancillary construction costs, possibly also for the carport.
Exterior landscaping is easy to underestimate. Yes, we also just want to plant a little lawn, for now, but I already notice that we absolutely have to pave paths to our entrance, otherwise we sink into the mud.