There will be different architecture types. I just implemented a 'framework house' architecture and you can see it in the screenshots below. I plan to add other architectures like elven and dwarven architecture. You can combine different architectures and some of them will be very rare.
The overall idea is that you're able to build and extend your home and fill it with trophies and treasures that you find during your adventure. I also want to add a way to teleport back home.
I haven't decided yet about how to get materials for building, maybe you have some suggestions. :)