I am trying my best to rent a premises for an Asian Group to be used
as an Anglican Church, anywhere in Basel/Zurich/Bern with facilities
like ample parking area etc.

In the alternative, buy a Farm House in the borders of large
Township from a Philanthropicaly inclined Seller, towards identifying
themselves in such a religious venture.

Inqueries with some Agencies did not bring any substantial results.

There's already Anglican churches in all three cities. Have you tried approaching them? I mean, if you're Anglican as well, they might be able to make suggestions for your particular requirements.

I think you might be interested in this: Conference venue for rent!

Please send me PM for more details.