In England and Wales, listed buildings are classified as:
Grade I – buildings of exceptional national significance
Grade II* – particularly important buildings of more than special significance (* = star rating)
Grade II – of special interest, warranting every effort to preserve them.
Scotland and Northern Ireland use similar classifications, labelled A, B and C.
The local planning department (which may have a conservation officer) will determine the specific requirements
for any work proposed to historic homes. The type of work requiring Listed Building Consent varies with the