Thanks a lot for your input,guys. The best thing, then is to have SU8 and 7.1 installed on the computer just in case. I'm just used to when I upgrade a software to stop using the old version. Weird.

Maybe stupid question... but is there a good reason to upgrade to SU 8?
I don't what to turn this post in another "let´s all pound on the Google team". This is just a honest question, since I using SU since version 5 and this time I can see nothing to upgrade about. I using the free edition and so solid editing is out as a reason and 7.1 let's import dwg.
Is there something did I missed in this new version?

Blender imports COLLADA with no problem but I never could get the export from SU to work. It always freezes and doesn't export's a DAE file. Maybe is just me I don´t now.

I just saw your exporters and try them out. Your work is amazing! I been looking for a obj exporter from SU and yours works like a charm!!!! Tanks!
I model both in SU and Blender, but there was no direct way to export a model from the free version of SU to Blender. I always use the SU2KT plugin to export to Kerkythea XML file and then use the program Kt2Obj (http://www.nicetuna.com/kt2obj) to transform the Xml to Obj and open the obj in Blender.
If you don´t mind I ill post on the blender forum a link to your plugin, because there are a lot of Blender user's that will find your plug-in very useful.
The Luxrender plug-in is very good as well, but is a pity there is no material editor in it. There are attempt's to get a working SU plug-in in the Luxrender forums but the development is very slow, maybe you could give them a hand. Your plug-in is already better that them.

Thanks for the comments! I'm glad.
@shura, the gate is suposed to be very simple and clean sliding electric panel (I don´t know the correct term in english), but you are right, it lack's detail. But at this point, the must important thing was to show the house.
@honoluludesktop, you are right about the carport, but the client wants it like that. The terrain as 2 hectare and is building on a corner of the it. No idea what he's going to do with the rest.
The slope was made based on the contours from the CAD file using the sandbox tools and using a texture of a seamless grass (don´t remember here I got it from) with a little displacement in Thea. But there was little gaps in my mesh were the different slope come together and with the displacement I could see trough them. The fault was not of the displacement but of my bad modeling.
So I imported the model into Blender and based on the SU terrain, modeled in Blender this time with high poly and with quads instead of triangles. Merged that mesh in Thea with the SU model, apply the displacement and no gaps this time.
I used Kerkythea and now Thea because they have a Studio and I can merge model from various origin and workaround SU poly limitation.
Many people have a SU->Max workflow but I have a SU->Thea<-Blender workflow. The quality-price relation of Blender against 3DStudio Max is unbeatable. Blender is free.

I'm a long time reader of this forum, but a almost non-poster. Today I decided to put here a simple work I did for my favorite costumer, my wife. She´s an architect and she needed a couple of render's of a project to show her client. This are very simple scenes but they did the trick with the client.
This was also another scene to get comfortable with Thea render that I bought, which is awesome!
This all done with SU, except the terrain that I redone with Blender because I could get it just right in SU, but that's my fault.

Hi,
It's nice to see another user of a SU/Blender workflow. I love the two programs and they make my life more easy.
SU is great for modeling architecture but Blender as more advance tools for modeling organic forms,texturing and render.
My workflow is:
I use SU free for modeling from the CAD files and do texturing, then use the Kerkythea exporter, then I have a Kerkythea XML file and the textures folder.
Then use the wonderful Nicetuna converter from the Kerkythea format into OBJ, it can be found here: http://www.nicetuna.com/kt2obj
Then import into Blender the OBJ file,be sure that the file are in the same folder that the textures and in the import options check the image search for Blender find them, and separate OBJ by Object/Group/Material. And Voilá.
The import is perfect.
In Blender you just need to delete duplicate vertices and transform tri faces into quads,that are very simple commands.

Then one can export back to Kerky for render or use another render engine available for Blender like Yafaray, Luxrender or VRay.
This is how I do it. Hope someone finds this information useful.