To build a container house, there are a few steps you can follow:

1. Planning: Start by defining your requirements, such as the size, layout, and desired features of your container house. Consider consulting with an architect or a container house specialist to help with the planning process.

2. Obtain Permits: Check with your local authorities to ensure you have the necessary permits and comply with building codes for container houses. This step may vary depending on your location.

3. Find Containers: Look for reputable suppliers or shipping companies that sell used or new shipping containers. Determine the number of containers you'll need based on your design and space requirements.

4. Design and Modifications: Work with an architect or designer to create a detailed layout and design plan for your container house. Decide on the modifications you want, such as cutting openings for windows and doors, insulation, plumbing, electricity, and interior finishes.

5. Construction: Hire a professional contractor experienced in container house construction or consider assembling it yourself if you have the necessary skills. Make sure to follow safety guidelines and ensure proper insulation, structural integrity, and installation of utilities.

6. Interior Finishes: Once the basic structure is complete, focus on interior finishes, such as flooring, walls, ceilings, and any additional features you desire, like kitchen cabinets, bathroom fixtures, and other amenities.

7. Utilities: Connect your container house to necessary utilities, such as electricity, water, and sewage, either by integrating them into the container or by hooking up to existing infrastructure.

8. Inspections: Schedule inspections to ensure your container house meets building codes and safety standards.

Remember, building a container house requires careful planning and coordination. It's always a good idea to consult with professionals who have experience in container house construction. If you need any further assistance or information, feel free to ask!