Council Tax long term empty homes review In support of the Government’s initiative to tackle the shortfall in national housing, we are currently undertaking a review of long-term empty Council Tax properties. Please update the property records for your address by completing the Empty Home Review form. The review is being managed on behalf of the Council by Capacitygrid. Capacitygrid’s contact details are on your review letter. It should only take you 5-10 minutes to complete the review, and you will need the passcode numbers on your review letter. Lost your review letter? Telephone CapacityGrid on 0300 303 2076. Lines are open between 8.45am and 5pm, Monday to Friday.