Where the property is not let out, the amount of annual rent assessed by the local authority in whose area the property is situated for levy of property tax or,if there is no such assessment or the property is situated outside the area of any local authority the amount which the owner can reasonably be expected to receive as annual rent had such property been let. Annual rent means: Where the property is let throughout the year ending on the valuation date, the actual rent received by the owner in respect of such year