Preheat the oven to 375 degrees Fahrenheit and line 2 baking sheets with parchment paper.
In a mixing bowl, whisk together the flour, ginger, cinnamon, allspice and salt. Set aside.
In a large mixing bowl or a bowl fitted for a stand up mixer, beat together the butter and brown sugar with the paddle attachment until smooth and creamy (3-4 minutes).
Mix in the eggs, vanilla extract, molasses and water until combined on high speed.
Reduce the mixer speed to low and gradually add the dry ingredients into the wet ingredients until just combined. Be careful to not over mix. The batter will be thick.
Place the dough on a floured work surface and divide it into 4 even discs.
Use a rolling pin to roll out each disk in between 2 pieces of floured parchment paper until it’s approximately 1/4 inch thick.
Use a pizza cutter or sharp knife to cut out shapes from the gingerbread to form into your gingerbread house. You will need 2 of each shape to make the house (2 for the front and back, 2 for the sides and 2 for the roof of the house ).
Use a spatula to transfer the pieces of gingerbread to the prepared baking sheets.
Bake for 13-15 minutes until the edges of the gingerbread are just slightly browned. The gingerbread will still be slightly soft and will firm up as they cool.
Let the gingerbread cool completely overnight at room temperature before assembling into the house.