I have my eye on a 2.6ha piece of land, which is really big by (overcrowded) Belgian standards. It has a small section where a house can legally be built, and the rest of the property is classified as agricultural land, which can be developed as meadows, orchards or fields. (Mixing the three is not yet acquired practice :-))
The property has been completely chemical free for a number of years, possibly more than 20, it has several mature fruit trees, good species diversity in the herb layer, in my eyes a lot of potential for development!
Will investigate what the best financial solution is for acquisition... 

Challenges for any belgian permaculture site development are certainly the very strict zoning and building codes, prohibiting things like:
- the placing of even temporary structures (tent, yurt, shed...) on agricultural land if you are not a professional farmer,
- an extension of the number of housing units (1 12x12m structure allowed for the land I would like to acquire, although the size of the terrain is such that it could easily support a much larger community than a single family),
- making changes to the profile of the land (including digging swales, dams, ponds, removing top soil) without a license. Oops!

Hmmm, it will certainly be a balancing act to develop any terrain permaculturally here while observing the local laws, and a huge hallenge to make permaculture better known in this country, but it is my firm intent to do this...

Good luck to all permaculture workers/activists out there, may the TRUE green revolution prevail!