Listen to sounds that carry through the home. Notice how doors and windows fit. Notice wood trim installation, and paint and stain coverage. Examine the exterior. The quality you are looking at is the same quality the builder will deliver.
Custom builders are less likely to have model homes.
They can often arrange appointments for you to view an occupied home their company built. Even builders who have model homes seldom offer a sample of each floor plan, but you may be able to tour homes under construction to experience a life-size example. Seeing homes at the frame, mechanical, insulation, and drywall stages offers an opportunity to see the quality inside the walls. Check references before choosing a builder Meet the Builder Ask about the things that are important to you. Ask to meet the person who would be in charge of building your home.