diff -r 5b3be41b3ce6 -r 0b40f556e051 src/ai/api/ai_company.hpp
--- a/src/ai/api/ai_company.hpp	Fri Feb 29 00:17:59 2008 +0000
+++ b/src/ai/api/ai_company.hpp	Fri Feb 29 08:51:47 2008 +0000
@@ -128,6 +128,23 @@
 	 * @return true if we could allocate a minimum of "loan" loan.
 	 */
 	static bool SetMinimumLoanAmount(int32 loan);
+
+	/**
+	 * Build your company's HQ on the given tile.
+	 * @param tile the tile to build your HQ on, this tile is the most nothern tile of your HQ.
+	 * @pre AIMap::IsValidTile(tile).
+	 * @note An HQ can not be removed, only by water or rebuilding; If an HQ is build again, the old one is removed.
+	 * @return true if the HQ could be build.
+	 */
+	static bool BuildCompanyHQ(TileIndex tile);
+
+	/**
+	 * Return the location of a company's HQ.
+	 * @param company the company the get the HQ of.
+	 * @pre ResolveCompanyIndex(company) != INVALID_COMPANY.
+	 * @return The tile of the company's HQ, this tile is the most nothern tile of that HQ, or INVALID_TILE if there is no HQ yet.
+	 */
+	static TileIndex GetCompanyHQ(CompanyIndex company);
 };
 
 DECLARE_POSTFIX_INCREMENT(AICompany::CompanyIndex);