In the case of a bare plot of land upon which nothing has been built, no notice need be served. If it is a case of a building which is intended to be occupied as a dwelling, but is in fact vacant, then a notice must be served. The Commonhold and Leasehold Reform Act 2002, s 166 (CLRA 2002) requires a landlord to serve notice upon a tenant under a long lease of a dwelling specifying certain information. If he fails to do so, then the tenant is not liable to make payment. The notice must specify the amount of payment and the date on which the tenant is liable to make it. Importantly, the date upon which payment is liable to be made must not be either less than 30 days or more than 60 days