These are my notes and photos of how I built a House Skewb.
I had just finished a previous Skewb mod and wanted to improve my build techniques with something along similar lines. I decided on a House Skewb using 5 extensions.
A cardboard mock up
On my previous build visual alignment had been a slight problem highlighted by thin glossy vinyl stickers. Then I saw this advice from p|astic http://twistypuzzles.com/forum/viewtopic.php?f=9&t=9637 which I used with my four key outer surface joins. I chamfer all edges - I find it easier then to apply measuremennts without having to allow for material thickness.
Reassembled after the first gluing
Roof surfaces were added next
Lower roof pieces added
I just wanted to confirm the size and shape of the other roof pieces..
Confirming upper roof dimensions
..before cutting, assembling and offering up.
Top piece just resting in position
This was 1.5mm ABS and for the large top piece I added two internal rafters to give rigidity and to act as a gluing point for attachment to the top face. So now all extensions were attached but the internal surfaces were not capped. I trimmed the caps by trial and error before gluing them in position.
Edges rolled over
Edges were rounded over and any minor fissures were painted with black acrylic artists' paint instead of filler. The paint has a thickness to it which gives it filling properties. A few repeats of painting, scraping and sanding were needed.

Meanwhile I had been working on the house design. Originally I had wanted to incorporate the Skewb lines in the design but I couldn't arrive at a design I was happy with. So I used Inkscape - vector graphics - to design this Georgian house. This is a fully determined picture Skewb or Super Skewb. I was intending to paint the puzzle with acrylics but I think it would have been difficult to get the level of detail I wanted.
Print out of all stickers
I have used self-adhesive printable vinyl. After printing I over sprayed 4 coats of Satin Acrylic Varnish.
Finally the finished puzzle.
Front and leftBack and right


PS I'll leave you with this idea - what happens if you add four roofs to a Skewb?
Something very like a Mental Block...
Four "roofs" 1