Within most European countries there's experimental/homebuilt/amateur or ultralight categories and it's really not so different to the US, possibly easier. You can build and fly your own plane in almost all European countries..
The problem is crossing borders with them, the same as with your American-built experimental plane - you (may) need permission from the other country first.

The 'real' difference between EU countries and the US is the EU countries are much smaller.

On Wednesday, July 8, 2020 at 9:05:12 PM UTC+2, Dan Marotta wrote:
So, do you have home built or kit built aircraft in Europe?Â* If so, in
what category are they registered?Â* If not, that's a shame.

On 7/8/2020 12:59 AM, John Howell wrote:
It is the same as buying a used altimeter from a friend. If your aircraft
i=
s experimental, you can put anything in it. If it is certified, the ALT
bet=
ter be TSO'd.

Tom

.and in Europe we don't have any such thing as an experimental category..


--
Dan, 5J