Recently I was able to buy a piece of land adjacent to my house. It's about 134 square wa and a klong is running on one side.

Does anyone know a garden designer (architect) who could help designing a tropical garden? Or where I can find one?

Or does someone know some rules how to design such a garden?

Any help is greatly appreciated.

Many major architectual practices here also have landscaping divisions, eg. Hassell, Woods Bagot, City Space, etc.

We had Made Wijaya from Bali do a garden for us in Chiangmai. Stunning job and well worth the effort and costs. Google "Made Wijaya", you can also get ideas on their PTTribwana website

Thanks a lot for the helpful hints. I thought of building a small wooden guest house and a small pond.