There are over 2500 listed buildings in Liverpool, England. A listed building is one considered to be of special architectural, historical or cultural significance, which is protected from being demolished, extended or altered, unless special permission is granted by the relevant planning authorities. Of the listed buildings in Liverpool, 105 are classified as Grade II* listed and are recognised as being particularly important with more than special architectural or historic interest. Of these, 47 are located within the L1, L2 and L3 postcodes, which cover the city centre of Liverpool.