The Forbidden City is surrounded on three sides by imperial gardens. To the north is Jingshan Park, also known as Prospect Hill, an artificial hill created from the soil excavated to build the moat and from nearby lakes.

To the west lies Zhongnanhai, a former royal garden centred on two connected lakes, which now serves as the central headquarters for the Communist Party of China and the State Council of the People's Republic of China. To the north-west lies Beihai Park, also centred on a lake connected to the southern two, and a popular royal park.

Religion was an important part of life for the imperial court. In the Qing dynasty, the Palace of Earthly Harmony became a place of ManchuShamanist ceremony. At the same time, the native Chinese Taoist religion continued to have an important role throughout the Ming and Qing dynasties. There were two Taoist shrines, one in the imperial garden and another in the central area of the Inner Court.

Another prevalent form of religion in the Qing dynasty palace was Buddhism. A number of temples and shrines were scattered throughout the Inner Court, including that of Tibetan Buddhism or Lamaism. Buddhist iconography also proliferated in the interior decorations of many buildings. Of these, the Pavilion of the Rain of Flowers is one of the most important. It housed a large number of Buddhist statues, icons, and mandalas, placed in ritualistic arrangements

The north-eastern section of the Inner Court is taken up by the Palace of Tranquil Longevity (寧壽宮) (O), a complex built by the Qianlong Emperor in anticipation of his retirement. It mirrors the set-up of the Forbidden City proper and features an "outer court", an "inner court", and gardens and temples. The entrance to the Palace of Tranquil Longevity is marked by a glazed-tile Nine Dragons Screen.[61] This section of the Forbidden City is being restored in a partnership between the Palace Museum and the World Monuments Fund, a long-term project expected to finish in 2017

Directly to the west is the Hall of Mental Cultivation (N). Originally a minor palace, this became the de facto residence and office of the Emperor starting from Yongzheng. In the last decades of the Qing dynasty, empresses dowager, including Cixi, held court from the eastern partition of the hall. Located around the Hall of Mental Cultivation are the offices of the Grand Council and other key government bodies.

Between these two palaces is the Hall of Union, which is square in shape with a pyramidal roof. Stored here are the 25 Imperial Seals of the Qing dynasty, as well as other ceremonial items.

Behind these three halls lies the Imperial Garden (M). Relatively small, and compact in design, the garden nevertheless contains several elaborate landscaping features. To the north of the garden is the Gate of Divine Might.

The Palace of Earthly Tranquility (坤寧宮) is a double-eaved building, 9 bays wide and 3 bays deep. In the Ming dynasty, it was the residence of the Empress. In the Qing dynasty, large portions of the Palace were converted for Shamanist worship by the new Manchu rulers. From the reign of the Yongzheng Emperor, the Empress moved out of the Palace. However, two rooms in the Palace of Earthly Harmony were retained for use on the Emperor's wedding night.

The Palace of Heavenly Purity is a double-eaved building, and set on a single-level white marble platform. It is connected to the Gate of Heavenly Purity to its south by a raised walkway. In the Ming dynasty, it was the residence of the Emperor. However, beginning from the Yongzheng Emperor of the Qing dynasty, the Emperor lived instead at the smaller Hall of Mental Cultivation (N) to the west, out of respect to the memory of the Kangxi Emperor. The Palace of Heavenly Purity then became the Emperor's audience hall. A caisson is set into the roof, featuring a coiled dragon. Above the throne hangs a tablet reading "Justice and Honour" (Chinese: 正大光明; pinyin: zhèngdàguāngmíng).

The Inner Court is separated from the Outer Court by an oblong courtyard lying orthogonal to the City's main axis. It was the home of the Emperor and his family. In the Qing dynasty, the Emperor lived and worked almost exclusively in the Inner Court, with the Outer Court used only for ceremonial purposes.

At the centre of the Inner Court is another set of three halls (L). From the south, these are the Palace of Heavenly Purity (乾清宮), Hall of Union, and the Palace of Earthly Tranquility. Smaller than the Outer Court halls, the three halls of the Inner Court were the official residences of the Emperor and the Empress. The Emperor, representing Yang and the Heavens, would occupy the Palace of Heavenly Purity. The Empress, representing Yin and the Earth, would occupy the Palace of Earthly Tranquility. In between them was the Hall of Union, where the Yin and Yang mixed to produce harmony.

In the south west and south east of the Outer Court are the halls of Military Eminence (H) and Literary Glory (J). The former was used at various times for the Emperor to receive ministers and hold court, and later housed the Palace's own printing house. The latter was used for ceremonial lectures by highly regarded Confucian scholars, and later became the office of the Grand Secretariat. A copy of the Siku Quanshu was stored there. To the north-east are the Southern Three Places (南三所) (K), which was the residence of the Crown Prince.

At the centre of the ramps leading up to the terraces from the northern and southern sides are ceremonial ramps, part of the Imperial Way, featuring elaborate and symbolic bas-relief carvings. The northern ramp, behind the Hall of Preserving Harmony, is carved from a single piece of stone 16.57 metres (54.4 ft) long, 3.07 metres (10.1 ft) wide, and 1.7 metres (5.6 ft) thick. It weighs some 200 tonnes and is the largest such carving in China. The southern ramp, in front of the Hall of Supreme Harmony, is even longer, but is made from two stone slabs joined together – the joint was ingeniously hidden using overlapping bas-relief carvings, and was only discovered when weathering widened the gap in the 20th century