Definition of value
Net annual value is the rent at which the property might reasonably be expected to let on a year to year basis on the assumption that the tenant is responsible for repairs and insurance and any other expenses necessary to maintain the property in a state to command the rent.
The rateable value of the property, in most cases, is the same as the net annual value, however in a few cases the legislature provides for relief to be given by requiring a reduction from net annual value to reach rateable value.