Liability for local property tax will be calculated based on the “chargeable value” of the residential property. Where a disabled person's grant has been allocated for an extension or improvements to a home to facilitate the physical requirements of disabled or elderly people, the Finance (Local Property Tax) Act 2012 does not currently allow any necessary works to be disregarded in the overall valuation of a property. Such extensions or improvements to a residence may not increase and may even reduce the market value of a property. Where a residential property is owned by a charity (approved by the Revenue Commissioners) or a public body and is used to provide accommodation and support to persons with disabilities or the elderly to enable them to live in the community, such properties will be exempt from the Local Property Tax.