In March 1624, a Portuguese commander named Gaspar Leite captured a fortification on the eastern seaboard of what is now Sharjah. The structure he seized may have been little more than a watchtower, but over the following century it grew into something more substantial. By 1745, the fort that stands today at Kalba had taken shape -- a mudbrick, gypsum, and stone structure with an unusual buttressed construction that hints at Portuguese architectural influence. It is one of a string of coastal fortifications with Portuguese origins that dot the Emirates' east coast, from Khor Fakkan to Al Badiyah to Dibba.
Kalba Fort encompasses roughly 1,435 square meters and features a two-story murabaa, or tower. Additions were made to the original structure in 1820, and surrounding village houses contain remains dating back 500 years. The fort was first restored and opened as a heritage site in December 1996, then underwent a second, more extensive restoration that was completed in April 2021 under the direction of Sultan bin Mohammed Al Qasimi, the ruler of Sharjah. The 1829 survey of the area described it simply as "a fort on the side of a creek into which boats of twenty to thirty tons can go," alongside a town of roughly 200 inhabitants.
Adjacent to the fort stands the Bait Sheikh Saeed bin Hamad Al Qasimi, a traditional house constructed between 1898 and 1901. Originally opened as a museum in December 1999, it too was restored and reopened in April 2021. The house belonged to Saeed bin Hamad Al Qasimi, whose return to Kalba in the 1920s provoked his neighbor, the ruler of Fujairah, Hamad bin Abdullah Al Sharqi. The Fujairah ruler blamed Saeed bin Hamad for the British bombardment of Fujairah Fort -- a grievance that nearly erupted into open conflict in May 1926.
Kalba's history is inseparable from the rivalries between the Gulf's ruling families and the interventions of the British Empire. When Saeed bin Hamad needed help against Fujairah in 1926, the ruler of Sharjah ignored his plea, and he was forced to turn to the Sultan of Muscat for support. The fort and its adjacent house stood at the center of these shifting allegiances. Kalba was eventually granted recognition as a Trucial State in its own right in 1936, a rare distinction that reflected its strategic importance on the east coast. But the independence was short-lived; by 1952, Kalba had been subsumed back into Sharjah.
Kalba Fort belongs to a network of Portuguese-influenced fortifications along the UAE's eastern seaboard. The Portuguese built or adapted forts at Khor Fakkan, Al Badiyah, and Dibba to control access between the Persian Gulf and the Gulf of Oman. These structures served overlapping purposes: military defense, trade regulation, and the projection of imperial authority over local populations. Today, Kalba Fort functions as a museum and visitor attraction, its walls telling a story that stretches from Portuguese imperialism through Trucial State politics to the modern emirate. The village houses surrounding it, some with remains dating back five centuries, add layers of ordinary life to a site shaped by extraordinary conflict.
Located at 25.13N, 56.36E on the eastern coast of the Emirate of Sharjah, UAE, near the border with Oman. The fort sits inland from the coast near Kalba Creek. Nearest airport is Fujairah International (OMFJ), approximately 8 km to the north. The Hajar Mountains rise to the west.