In March 2015, the government enacted legislation (Self-build and Custom Housebuilding Act 2015) that places a requirement on local councils to maintain a register of people seeking to acquire land to build a home themselves. The government is keen to promote self and custom building as a means of increasing the overall number of dwellings and encouraging the growth of the custom build sector.
The Act requires local authorities to understand the level of demand in their areas for self and custom build housing, and to have regard to that demand when exercising their strategic planning and other relevant functions. This means that local planning authorities will have to make provision for self and custom build development opportunities in their local plans.
In brief, self-build usually means that you are directly involved in organising the design and construction of your new home. Custom build usually means working with a specialist developer to help you deliver your home. There may be some overlap between the two – for example some custom build developers offer the option of a serviced plot where you can design and build your own home as part of a larger scheme.