Select or create a modern dollhouse design, then identify the required structural pieces, openings, finishes, and furnishings. No reliable universal measurements or construction times exist because each design can differ.

Measure and cut the wood or foam board carefully according to the chosen plan. Test-fit walls, floors, and other structural pieces before applying adhesive.

Assemble the structure with a suitable adhesive and allow it to dry fully between stages. Add paint and flooring only after the main pieces are stable and the surfaces are ready.

Finish the interior with flooring, wall color, and other decorative details. Arrange miniature furnishings after the finishes have dried completely.

Inspect the completed dollhouse for loose joints, uneven edges, and crowded rooms. Make final adjustments before displaying it.