The Saidina Umar Al Khattab Mosque is a prominent mosque in Bukit Damansara (Damansara Heights), Kuala Lumpur, Malaysia. The eight-sided dome forms the main prayer hall building by
the use of its straight-edged angular sides, it is seen from the inside and
outside of the mosque, It is also used and reflected on the a b/a wall and its
entrance lower. The theme used for the design is replicated on the building antelope,
with suspended pointed arches used as its outer skin protecting the veranda
area.

The similar pitched roof of the main dome is moulded on a smaller scale, surmounted on the slender minäret located near the main foyer entrance. The octagon base minaret serves as a landmark of the mosque, and is equipped with the audio speaker system.

The mosque was originally designed as an open mosque which relied on the use of natural ventilation to cool the inside spaces and the main prayer hall. The use of air-conditioning was considered a luxury addition to a mosque from the 1950s (after Merdeka] right to the end of the 1990s when it is deemed necessary for most mosques of this size to have some form of air-conditioning. The protruding arched façade arts as a second skin to protect the open veranda
areas from rain entering the inside overspill space during heavy downpours.

A major facelift was done to the main prayer hall, extending an intriguing new look reminiscent to a postmodern Arabian or Middle-Eastern style. Replacing the former modest look, the interior represents a contrast to its exterior, with a shimmering grand chandelier, that hangs above the middle of the hall. Set in white-yellowish tone, the interior wall features geometrical pattered tiles, with intricate plaster work on the underside of the dome and a calligraphic band across the pentagonal structural beams of the dome.

The square tiled frame wall indicates a mihrab niche made of brownish granite that frames in the round arch. The upgrading of the mihrab niche is a later addition. An elevated wooden mimbar on the far right is linked with a short flight of stairs, with a gold colored dome on the pulpit root structure.