Empty Homes Review You may have recently received a review letter about the occupancy status of your property. In support of the Government's initiative to tackle the shortfall in national housing, Chiltern District Council is currently undertaking a review of empty Council Tax properties. Please follow the link below to update the property records for your address. The review is being managed on behalf of the council by Capacitygrid. Capacitygrid's contact details are on your review letter. Completing the review It will take 5-10 minutes to complete, and you will need the passcode numbers on your review letter.