Gather LEGO bricks, baseplates, doors, windows, and roof pieces
Choose a flat building surface
Place the baseplate or start with a solid foundation layer
Build the floor layout with bricks
Stack walls around the floor plan
Leave openings for doors and windows
Add door and window pieces
Continue building walls to the desired height
Reinforce corners and wall joints
Build the roof structure
Attach roof pieces or sloped bricks
Add interior details if desired
Check that all pieces are firmly connected
Make any final adjustments to the house design