The fort was originally built by the Spanish and named San Domingo, but later rebuilt by the Dutch using thicker walls to withstand potential artillery.
The nickname 'Red Hair Castle' (Hongmao Cheng) was given by local Taiwanese inhabitants referring to the red hair of the Dutch occupiers.
The site includes a collection of 19th-century cannons, though many were added to the site during the British occupancy for decorative and defensive purposes.
The British Consular Residence, built in 1891, is a Victorian-style red-brick building with arched verandas designed to suit the humid subtropical climate.
The fort's red brick construction was sourced from materials shipped specifically from the Xiamen region of China during colonial renovations.
It served as a key point in the Tamsui port customs house network during the Qing Dynasty's opening of Tamsui to international trade.
Fort San Domingo is a colonial-era fortress in Tamsui, New Taipei City, originally established by the Spanish in 1628. It served as a strategic military outpost and later functioned as a British consulate for over a century. The site consists of a main red-brick fortress, the British Consular Residence, and a former jailhouse. The architecture reflects a mix of Spanish, Dutch, and British colonial influences. It sits atop a hill overlooking the confluence of the Tamsui River and the Taiwan Strait. The site underwent multiple reconstructions, notably under the Dutch in 1644 who rebuilt it as Fort Antonio. It remained under British administration from 1867 until 1972 before being returned to Taiwan in 1980. The grounds house historical exhibits detailing Tamsui's role in international trade and diplomatic history. It is recognized as a Grade 1 National Historic Site in Taiwan.
The red-brick arches of the British Consular Residence provide a framing view of the fortress walls against the river backdrop.
Wear comfortable walking shoes as the site is located on an incline with stone paths.
Bring an umbrella or hat for sun protection as there is limited shade while walking between the consulate and the fort.
Check the official Tamsui Historical Museum website before visiting to see if specific buildings are undergoing interior maintenance.
Avoid visiting on major public holidays or weekends if you prefer a quiet experience, as the narrow pathways become heavily congested.
Closed on the first Monday of every month; also closed during Chinese New Year's Eve and select maintenance days.
Do not touch the historical artifacts or climb on the walls and cannons.
