Lamu Fort

Lamu Fort is the heavy square block sitting in the middle of a town built of narrow alleys, and the contrast is the first thing anyone notices. It is a two storey stone structure a short walk from the main jetty, it faces the open square that is the town’s principal public space, and it has spent most of its existence being something other than a fort. Today it holds a museum, the island’s only public library, and a good deal of ordinary community life.

The Battle That Produced a Fort

The fort exists because of a fight Lamu unexpectedly won. At Shela, on the same island, Lamu defeated a larger combined force from Pate and Mombasa, an engagement dated to around 1812. Victory left the town exposed rather than secure, and it asked Oman for protection. Said bin Sultan, Sultan of Muscat and Oman, sent a governor and a garrison of Baluchi soldiers, and the fort was built to hold them.

Dating the construction depends on which record you follow. Secondary accounts give work beginning in 1813 and finishing around 1821, and some add an earlier abortive start attributed to Fumomadi, Sultan of Pate, halted by his death in 1809. The National Museums of Kenya’s own material for the Lamu sites states simply that the fort was built in 1821, shortly after the Battle of Shela, to protect the town against the forces of Pate and Mombasa. The two versions agree on the completion and on the reason.

The wider story of the battle and the Omani protectorate that followed belongs to the Lamu guide.

Garrison, Then Prison, for Most of a Century

The fort served as a garrison until 1910. In that year the British colonial administration turned it into a prison, and it stayed one for seventy four years, under the colonial government and then under independent Kenya. Mau Mau detainees were held here during the 1950s. The prison closed in 1984.

That is the part of the building’s history most visitors do not expect, and it explains the interior: a structure altered over three generations to work as a jail, which the restoration then had to work back from.

From Prison to Museum

The fort was handed to the National Museums of Kenya in 1984 and converted into a museum with technical and financial assistance from the Swedish International Development Cooperation Agency. Restoration was undertaken carefully and the building was opened to the public in 1986, with a temporary exhibition following in 1993.

The museum’s founding theme was environmental conservation rather than Swahili history, which was deliberate: the town’s history was already covered by the Lamu Museum on the waterfront, and the fort was intended from the outset to work as a community building. The large ground floor exhibition space is the main display area.

The Island’s Only Public Library

The Lamu Fort Library is the part of the building that most repays a visit for anyone interested in the town rather than in the fort. It began in 1978 as a reference library for museum staff and researchers, and moved into more spacious quarters at the fort in 1986.

It holds in the order of ten thousand items arranged on the Dewey system, including research material on Lamu’s history, archaeology and anthropology, archival documents from the nineteenth and twentieth centuries, digitised manuscripts and Swahili poetry. It operates as a department of the fort museum under the National Museums of Kenya, and it is the only public library on the island, which makes it a working town facility rather than a display.

A Building the Town Still Uses

The National Museums describes the fort as the most important socio cultural centre in Lamu Old Town, and that is visible on any ordinary day. Meetings, weddings and public performances are held here, and the square outside is the town’s main gathering place and the usual starting point for guided walks through the old town.

The roof is the practical reason to go up. It gives the only publicly accessible elevated view over the old town roofscape and out across the channel to Manda, and it is the quickest way to grasp how tightly the inscribed World Heritage core is packed.

Visiting Lamu Fort

The fort stands roughly seventy metres from the main jetty, so arriving visitors pass it within minutes of stepping off a boat. It is a short stop rather than a half day, and it combines naturally with the Lamu Museum, the Swahili House Museum and the German Post Office, which are all inside the same World Heritage property and all run by the same body.

Admission is set by Legal Notice No. 79 of 2025, the National Museums and Heritage (Admissions Fees) Regulations 2025, with revised fees effective 7 May 2026 and checked here on 21 September 2026. The fort is ticketed together with the Lamu Museum, the Swahili House and the German Post Office, and a combined ticket covers all four.

Ticketing is through eCitizen at nmkpay.ecitizen.go.ke only, and the sites do not take cash. Where the fort is hosting a community event, parts of it may be in use, which is a feature of the building rather than a fault in it. See also heritage tours and Swahili cultural experiences.

Questions About Lamu Fort

Lamu Fort stands inside Lamu Old Town, within the wider Lamu guide. Comparable coastal fortifications include Fort Jesus in Mombasa and Siyu Fort on Pate Island.