Gather LEGO bricks, plates, roof pieces, doors, windows, and baseplates

Choose a house size and layout

Build a flat foundation on a baseplate

Stack bricks to form the walls

Leave openings for doors and windows

Add interior floors if needed

Build and attach window frames and doors

Create a roof with sloped pieces or plates

Add support bricks under the roof if needed

Decorate the exterior with details like steps, chimneys, and plants

Add furniture and rooms inside if desired

Check that all pieces are firmly connected

Adjust any loose sections and finish the house