There are more than 100 foreign missions represented in the national capital. Leases are issued by the National Capital Authority over sites on which chanceries, consulate facilities and head of mission residences have been constructed or are proposed.
The diplomatic missions maintain the formal relationships between Australia and the governments of other nations. Some missions are known as embassies and others, those which belong to the Commonwealth, are known as High Commissions.
The NCA's management of the diplomatic estate involves the sale and issue of Crown leases for diplomatic purposes, rent collection, lease variations, development compliance and approval and lease compliance. These Crown leases are issued under the Australian Capital Territory National Land (Leased) Ordinance 2022.
The NCA encourages foreign governments to design their missions to reflect their country's national architectural style. This practice is quite unique and allows the embassy to be easily identified by visitors to the National Capital.
Embassies are also represented in a unique way through the International Flag Display on the shore of Lake Burley Griffin, which provides a colourful and permanent display of the flags of all nations represented in the capital.