and infrastructure The National Drug Law Enforcement Agency (NDLEA) is headquartered in Ikoyi. The World Health Organisation (WHO) has its Lagos office in Ikoyi. The Nigerian Government Presidential Secretariat is headquartered in Ikoyi. The Deputy-Governor of Lagos State lives in Ikoyi. All of Nigeria's Billionaires maintain property in Ikoyi. "Africa's most valuable treasured real estate" Ikoyi has some of the most opulent residential facilities in Nigeria, and is thought to have the most expensive real estate on the entire African continent, with the average new apartment selling for US$1.5 million, that can reach as high as $10 million. However, due to the limited available land, many of these are vertical apartment buildings. Houses in Ikoyi are rare and belong only to the ultra-rich. Mike Adenuga, Aliko Dangote, Folorunsho Alakija amongst others hold houses in Ikoyi. Ikoyi Crescent houses the Consular-General of the United States of America to Nigeria. Bourdillon Road, Alexander Road and Gerrard Road, is a long stretch of road, that is considered to be the most prestigious not only in Lagos, but in Nigeria. This stretch covers the Embassy of France, Embassy of Iran, Embassy of Iraq, the Lekki-Ikoyi Link Bridge, the Commissioner of Lagos Police, the Deputy-Governor of Lagos State, National Army Headquarters Liaison Office, Federal Secretariat of Nigeria, the home of the former Lagos State Governor, Bola Tinubu. and the newest addition to the list, Africa's tallest residential building. At 43 floors, apartments in this building start at 6,500 square feet and begin to sell at $10 million. Other luxury apartment buildings on this road are: Tango Towers (30 apartments, $3m upwards), Mabadeje Plaza (for rent only), Luxury Gardens (20 luxury apartments $2m upwards), Titanium Towers (35 luxury apartments). This development is a radical departure from Ikoyi's original design, which was originally composed of modest single-family residences with large gardens. Considering the lack of constant electricity, pipe-borne water, and general decay in basic infrastructure that is typical of Lagos, concerns have been raised as to whether Ikoyi has the necessary road and water infrastructure to continue to sustain this type of development. The Vantage Bourdillon Apartments is another newest development on Bourdillon Road, Ikoyi Ikoyi includes the newer suburbs of Banana Island, Parkview Estate, Mojisola Onikoyi Estate, Osborne Foreshore Estate Phase I & II, Dolphin Estate and other luxurious blocks of flats that are springing up. Climate Ikoyi is one of the regions with the highest