Bandar Seri Begawan

The Secretariat Building (Malay: Bangunan Sekretariat) or formerly known as the Brunei Government Offices and Government Secretariat Building (Bangunan Setiausaha Kerajaan) is the oldest government structure that serves as "The Secretariat" or the seat of government. The building is located at Jalan Elizabeth II, Bandar Seri Begawan, Brunei-Muara District, Brunei. The building is currently under the protection of the Antiquities and Treasure Trove Act of the Museums Department.

The Brunei Postal Services Department (Malay: Jabatan Perkhidmatan Pos) is a government department which is responsible for providing postal service in Brunei.

The Raja Ayang Mausoleum (Malay: Makam Raja Ayang) is a historical mausoleum in Bandar Seri Begawan, Brunei. It believed to honour a royal punished for incest in the 15th century, became a site of cultural significance where visitors seek blessings despite the resulting damage from offerings. Renovated in 2008 with a dome structure, it preserves Brunei's history while safeguarding the tomb from further deterioration.

The Ministry of Home Affairs (MOHA; Malay: Kementerian Hal Ehwal Dalam Negeri, KHEDN) is a cabinet-level ministry in the government of Brunei which is responsible for the country's administrative divisions, municipal areas, immigration, labour, fire and rescue services, prison and rehabilitation institutions, and national disaster management. It was established immediately upon Brunei's independence on 1 January 1984. It is currently led by a minister and the incumbent is Ahmaddin Rahman, who took office since 7 June 2022. The ministry is headquartered in Bandar Seri Begawan.

Taman Haji Sir Muda Omar 'Ali Saifuddien is a historical urban park, located in the Pusat Bandar of Bandar Seri Begawan, where significant state ceremonies are held, including the Sultan's birthday celebrations, National Day, the National Musabaqah Al-Quran, and the birthday of Prophet Muhammad, among others. Formerly known as Padang Besar, the park underwent renovations in 1983 and was renamed in honour of Sultan Omar Ali Saifuddien III. This site holds historical importance, as it was the location of Brunei's declaration of independence reading on 1 January 1984. Taman Haji Sir Muda Omar 'Ali Saifuddien is located across from the Omar Ali Saifuddien Mosque in the capital of Brunei. Other notable buildings surrounding the field include the Secretariat Building and the Community Hall.

Pusat Bandar (English: City Centre) is the city centre of Bandar Seri Begawan, the capital of Brunei. It is home to a number of national landmarks, important government offices, and commercial and financial establishments.

The Old Lapau (Malay: Lapau Lama), formerly known as the Lapau, is a historical building in Bandar Seri Begawan, Brunei. It was the former lapau or royal ceremonial hall prior to the existence of the current Lapau building. It was also where the Constitution of Brunei was promulgated in 1959. It now houses a museum pertaining to the Constitution.

The PGGMB Building was constructed in 2003, is the third tallest building in Brunei after The DST Group Building. The Building was listed as the sixth tallest Building in Borneo just about 295 feet high.

The Dewan Bahasa dan Pustaka Library (Malay: Perpustakaan Dewan Bahasa dan Pustaka) or simply Dewan Bahasa Pustaka Library, is a public library located in Pusat Bandar of Bandar Seri Begawan, was initiated in 1965 and completed in 1968. Designed in the Constructivist architecture, the building serves as a hub for educational and literary resources, with its primary function as a library and educational centre. Today, it offer a range of materials, services, and programs that are easily accessible and free of charge to all residents.

The Brunei History Centre (PSB; Malay: Pusat Sejarah Brunei) is a government institution which conducts research, documentation, publication and dissemination on matters pertaining to the history of Brunei. It was established in 1982 by the consent of Sultan Hassanal Bolkiah as an institute of historical research on Brunei for the benefit of the Bruneian people. The head of Brunei History Centre is a Principal (Malay: Pengetua), which was held by Mohd. Jamil Al-Sufri until his death on 4 March 2021. The current Principal of Brunei History Centre is Dr. Hadi bin Melayong, another well known historian and long time deputy and acting Principal of Brunei History Centre. It is a government department under the Ministry of Culture, Youth and Sports.

The Brunei Malay Teachers Association (PGGMB or Persatuan Guru-Guru Melayu Brunei) was founded in 1937 and became a legally recognised nonprofit union with a democratic style of leadership in 1939. The founding members of PGGMB, who are also educators who have earned their degrees from the Sultan Idris Training College (SITC), took the initiative to start the organisation. It broadened its activities following World War II by creating a cooperative to promote Malay involvement in business and was instrumental in the founding of Barisan Pemuda (BARIP), Brunei's first nationalist organisation.

Bank Islam Brunei Darussalam (BIBD) is the main Islamic financial institution and the largest bank in Brunei. With the biggest network of branches and ATMs strategically placed throughout Brunei's four districts, BIBD has its headquarters situated in Bandar Seri Begawan.