In the UK, the legality of having a shipping container on your property can depend on various factors such as your location, zoning laws, and building codes. If the shipping container is intended for use as a permanent dwelling or as an extension to an existing dwelling, then it may require planning permission from the local authority.  If the shipping container is intended for temporary use or as a storage unit, then it may not require planning permission but may still be subject to other regulations such as building regulations. It is recommended to check with your local planning authority to find out the specific regulations in your area regarding the use of shipping containers on residential properties. They can provide you with the necessary information and help you understand any requirements that you may need to comply with. In general, it is important to ensure that the shipping container is structurally sound, secure, and does not pose any safety risks to yourself or others. Additionally, if the shipping container is visible from a public area, it should be visually appealing and not detract from the appearance of the surrounding area.