Have you tried a web search for Gingerbread house???? Here's one to get you started.

Sue

Here is a link that might be useful: Gingerbread house

Several years ago, I helped some young people decorate their gingerbread houses. I baked the houses and constructed them the day ahead. I put lots of candies and some cereals on the table and small bowls of royal icing. They even piped some of the icing as a finish touch.
Here's a picture of one of them.

Here's one I made . . . lots of blue gum tape for the shingles, Pretzel rods for the pillars, fruit by the foot for ribbons, covered upside-down ice cream cones for trees, covered marshmallows for shrubs, etc. I prefer to use melted sugar for the "glue" . . . you have to be more careful with it, since it burns like the dickens if you get it on yourself, but it's a superior hold. I found the best tool for cutting the baked gingerbread is that little, serrated knife that comes with Halloween pumpkin kits.

One year I made little individual houses for my guys at work for their desk using graham crackers. Same principle!!