Where a local authority enters a site on its Derelict Sites Register, it can charge an annual levy based on the market value of the site. The levy is intended to push owners to bring neglected property back into use.
Under the Derelict Sites Act 1990, a local authority may serve notice of intention to enter a site on the register, giving the owner an opportunity to make representations. Once registered, the levy applies annually until the dereliction is remedied and the site is removed.
The levy is charged on the authority's determination of market value, which the owner can contest. Unpaid levies accumulate as a charge and can be pursued as a debt.