The architectural design of Sultan Salahuddin
Abdul Aziz Shah Mosque is a combination of Malay and Modernist style. The
mosque has the capacity to accommodate 24,000 worshipers at any one time and is
large enough that on a clear day it can be seen from some vantage points in
Kuala Lumpur. The main dome of the mosque measures 51.2 m (167 ft) in diameter
and 106.7 m (350 ft) in height from the ground level. It is constructed
primarily from aluminium. The minarets are placed at each of the four corners
and are 142.3 m (460 ft) tall.
Elements of Malay and Islamic architecture are incorporated
into the finishes of the building. Fine decorative khat (Arabic calligraphy)
can be seen on the inner curve of the dome and parts of the walls. The
calligraphy work was executed by the Egyptian calligrapher Shiekh Abdel Moneim
Mohamed Ali El Sharkawi. Aluminium grills of intricate design can be found on
the doorways, windows and walls of the Mosque. The windows are fitted with blue
stained glass to reduce the amount of light that can enter the hall. The
resulting filtered illumination renders a bluish ambiance to the interior
spaces evoking a sense of peace and serenity. The high ceiling has triangular
panels of red balau and ramin timber wood that are set in crisscrossing
pattern. 
The dome is constructed of aluminium and the outer surface is
clad with vitreous enamel-baked triangular steel panels decorated with a
rosette of verses from the Qur’an. The main prayer hall is over two levels, is
fully carpeted and air conditioned and is one of the largest such spaces in the
world. The upper gallery of the prayer hall is reserved for the use of female
worshipers. The second floor houses a gallery, the ground floor contains the
administrative office, conference rooms, library, reception and lecture rooms.
The Blue Mosque overlooks the Garden of Islamic Arts, a
landscaped park inspired by the Quranic Garden of Paradise (Jannah). This 14
hectares of spiritual sanctuary houses nine galleries exhibiting a rich array
of Islamic arts such as calligraphy, sculptures, paintings and architecture.
The site is occasionally used for traditional Islamic performances.