Colombo Central Electoral District

The One is a tri-tower US$650 million mixed-use development project in Colombo, Sri Lanka, estimated to be the 10th largest of its kind in the world. It comprises the Ritz-Carlton Residences, The JW Marriott hotel and The One Residences.The 80-floor Ritz-Carlton Residences - Colombo, having already completed 33 floors as of August 2019, will be the first of the three buildings to be completed by December 2021. These freehold residences will be serviced and managed by Marriott International, the owning company of The Ritz-Carlton hotels. The 77-floor JW Marriott hotel building is scheduled for completion in December 2023, as well. The tower will house the country's first JW Marriott hotel. Projected to be the tallest building in South Asia upon completion in 2027, The One Residences tower will comprise 92 floors (reaching 376m in height), and offer residential, business and leisure facilities.

The Fort railway station bombing was a suicide bombing of a commuter train while it was stopped at the Fort railway station, the main station in Colombo, Sri Lanka, on February 3, 2008. The bombing killed 12 civilians and injured more than 100. Killed in the attack were eight school children of D. S. Senanayake College's baseball team and their coach/teacher-in-charge. The government said that the attack was carried out by a female suicide bomber, belonging to LTTE, who got down from a train and exploded during rush hour on Platform 3.Secretary of Defence Gotabaya Rajapaksa directed the Criminal Investigation Department to investigate the bombing which led to the arrest of two suspects alongside explosives hidden in Colombo and the discovery of small business premises run by a LTTE cell. The cell leader had left the country after the bombing.

Fort railway station is a major rail hub in Colombo, Sri Lanka. The station is served by Sri Lanka Railways, with many inter-city and commuter trains entering each day. Fort Station is the main rail gateway to central Colombo; it is the terminus of most intercity trains in the country.

Echelon Barracks was a former military barracks situated in Colombo Fort, Colombo. It was occupied by the newly formed Ceylon Army following independence.

The World Trade Center (also known as WTC Colombo or WTCC) (Sinhala: ලෝක වෙළෙඳ මධ්‍යස්ථානය, romanized: Lōka Veḷen̆da Madhyasthānaya; Tamil: உலக வர்த்தக மையம், romanized: Ulaka Varttaka Maiyam) is a 152-metre-tall (499 ft) twin building in Colombo, Sri Lanka. The 39-storey towers are built over a 4-storey retail podium, and thus each tower has a total floor count of 43. WTCC is owned and managed by Overseas Realty Ceylon PLC (ORCPLC).

The Central Bank bombing was one of the deadliest attacks carried out by the Liberation Tigers of Tamil Eelam (LTTE) during the separatist civil war in Sri Lanka between the government and the Tamil Tigers.

The Board of Investment of Sri Lanka (BoI) (Sinhala: ශ්‍රී ලංකා ආයෝජන මණ්ඩලය Shri Lanka Ayojana Mandalaya) is the investment promotion agency of Sri Lanka. It was established in 1992, expanding the scope of the Greater Colombo Economic Commission (GCEC) which was formed in 1978.

The Old Colombo Dutch Hospital (known as The Dutch Hospital) is considered to be the oldest building in the Colombo Fort area dating back to the Dutch colonial era in Sri Lanka. It is now a heritage building and a shopping and dining precinct.

The Colombo Port City Economic Commission is a government agency in Sri Lanka, established in 2021 under the Colombo Port City Economic Commission Act, No. 11 of 2021. It is entrusted with the administration, regulation and oversight of all business and operational matters within the Port City Colombo authority area.

The Old Parliament Building, is the building that houses the Presidential Secretariat of Sri Lanka. Situated in the Colombo fort area facing the sea, it is in close proximity to the President's House, Colombo and adjacent to the General Treasury Building. The building housed the island's legislature for 53 years until the new parliamentary complex was opened at Sri Jayawardenepura in 1983.

The Pettah Market also called Manning Market is an open market in the suburb of Pettah in the city of Colombo, Sri Lanka.The entrance to the Pettah Market is marked formally by a tall monument in the centre of a roundabout, known as the Khan Clock Tower which was built by the family of Framjee Bhickajee Khan, an eminent Parsi family from Bombay who used to have substantial business interests in the country and who also owned the Colombo Oil Mills. The Colombo Old Town Hall & Museum, which was built by the prominent Muslim Arasi Marikar Wapchie Marikar, is located at Kayman's Gate, so named because the Dutch used to stock crocodiles at Beira Lake to prevent their slaves from escaping. Today the building acts as a post office on the ground floor, and as a museum on the upper floor. Outside, there is an exhibit of old steam engines. Most of the businesses in Pettah are dominated by Muslim who specialize in trading of goods and the Tamil people who have migrated from India traders who specialize in gold and jewelry shops. At the end of pettah is sea street which is Sri Lanka s gold market where people all around Sri Lanka come to purchase jewellery . It is a long street of jewellery shops with hundreds of shops next to one another. There are also some jewellery shops in main street gaspa junction. The most recognizable building in the Pettah market is the candy-striped Jami Ul-Alfar Mosque (also known as The Red Mosque) which was built in 1909.

SLAF Colombo is the Sri Lanka Air Force headquarters in Colombo. In this capacity it has the offices of the Commander of the Air Force, Chief of Staff, the Board of Management (BOM) and Board of Directors (BOD) of the Sri Lanka Air Force. All air and ground operations are directed from SLAF Colombo. Apart from functioning as a headquarters, it is a limited air base for helicopter operations. Established soon after the formation of Royal Ceylon Air Forces was formed in 1951 at the former officers mess of the former Ceylon Rifle Regiment at Rifle green. The officer's mess was moved in the 1970s when the Trans Asia Hotel was made in its location. The mess is currently housed in the Cinnamon gardens area of Colombo. It is the only Officers' Mess to be located outside a SLAF Station premises.