Official statistic refreshed every second year - a compilation of accommodation stock information (serviced and non-serviced). England results are combined with those from other tourist boards to create a UK-level return for Eurostat. Some variation in timelines, but generally published at the end of every second calendar year (next update 2014).
Current deliverables are available at http://www.visitengland.org/insight-statistics/major-tourism-surveys/accommodations/AccommodationStock/