I went through 4 different Architects and only used one set of local engineers (www.crozier.com). I am happy to share my advice on how to develop your site.
email me if you like at firstname.lastname@example.org
You first step is to take a picture of some plans into the building department of the town that you hope to build in (before you buy the land) and ask the chief building official if you got stamped plans from an Architect and a Structural Engineer and a Mechanical Engineer would they allow you to build the earthship.
This is what I did in Collingwood and so far the town has been great to work with and open to supporting my project.
After meeting with the local building department they said as long as I could get stamped plans that they were cool with me building an Earthship in Collingwood.
Earthship Canada Time Line
The goal of this Earthship Canada page is to link up all of the earthship projects across Canada, so that knowledge can be shared and people can learn how to get involved to learn how to build their own.
Check out this new resource: http://www.darfieldearthship.com/map/
Become an active member on the Ontario Eartthships Page: http://www.facebook.com/groups/895359937202042/
The Port Dover Earthship owed by Craig and Connie Cook Www.windchasers.ca
Oct 10th 2012 “Earthships have landed in Canada” This is a great write up with pictures of the Port Dover Ontario Earthship http://www.theglobeandmail.com/life/earthships-have-landed-in-canada/article4601965/ I have not found their web page
The Land Project is promoting two Eco villages currently one in Ontario and one in British Columbia. You can get involved in one of these projects or start your own project and promote it on this site! They are promoting all types of off the grid construction; Earthships, Straw Bail, Cob, Tree Houses know as Free Spirit Spheres. http://thelandproject.com/offgrid/ontario-earthship-group/
There is an active Meet Up Group in Ottawa . . . http://www.meetup.com/Earthship-Ottawa/
I think this project is in Quebec. Great Pictures and good information sharing here too! http://earthship.rlds.ca/
A Quebec Facebook page to be followed . http://www.facebook.com/pages/Earthships-Quebec/121165561359294
Dec 2012 they got their roof on in time for Christmas! Really good: pics, budget and site plans on this web page! https://sites.google.com/site/earthshipmanitoba/home
Dec 25th 2012 Chris Newton and Sandra Burkholder of Darfield British Columbia moved in for their first night in their earthship which they started in the spring of 2009. To see more details visit their web page at http://www.darfieldearthship.com/