It was built for the needs of the newly formed Kingdom of Serbia headed by King Milan Obrenovic with the intention of overshadowing all contemporary Serbian ruler residences. The appearance of the palace was significantly altered compared to the initial design after the reconstructions following heavy damage sustained during both world wars.

 The Old Palace was the residence of the Karageorgevich dynasty between 1903 and 1914. Sessions of the temporary National Assembly were held there between 1919 and 1920, as well as court parties and receptions for foreign dignitaries until 1941. Reconstruction following the end of World War II lasted until 1947, and the palace thereafter housed the Presidium of the National Assembly, then the Government of the FNRJ, the Federal Executive Committee and finally, after 1961, the Assembly of the City of Belgrade.

 Its outer architectural makeup places the building among the most beautiful works of Serbian academic architecture of the 19^th century. The most elaborate façade is facing the gardens. A typical motif on the façade are the caryatids at the first floor level. Caryatids are repeated on the façade facing the Kralja Milana Street, along with a line of Doric columns in front.

 The central hall leads to the Red Salon where the “Portrait of the Girl”, painted by Đura Jakšic in 1862 is sure to draw the most attention. The left side of the entrance to the Yellow Salon displays the facsimile of the letter of Pope John VII dated April 16, 878 – the oldest document every to mention the Slavic name of Belgrade. The Yellow Salon houses several exceptional paintings by Sava Šumanovic, Jovan Bijelic, Petar Lubarda, Miodrag-Bata Mihajlovic, Ljuba Lah, Jovan Zonjic, Peda Milosavljevic, Petar Omcikus and Vasa Pomorišac, as well as woodcuts by Rista Stijovic. The Yellow Salon leads to the Ceremonial Hall, a ballroom leading to the terrace. The interior of the 19^th century Salon was arranged by the Museum of the City of Belgrade in line with the spirit of the time when the Old Palace was built.

 The Old Palace currently houses the Assembly of the City of Belgrade and the cabinet of the mayor.

The building was designed by the renowned Belgrade architect Stojan Titelbah, upon the site of the demolished Palace of the Crown Prince Mihailo Obrenovic.

 The building of the New Palace, with four stories and the typical corner dome, represents a valuable architectural work of Belgrade construction after World War I. The first floor housed the private and working rooms of the King and Queen: bedrooms with access rooms, cabinets, salons, library and dining hall. The second floor contained the English and Japanese salons, bedrooms and the library. The furniture and interior design bear details in the styles of Louis XIV, Louis XV and Louis XVI.

 The New Palace was the official residence of King Alexander Karageorgevich between 1922 and 1933, thereafter the palace was, in accordance with the king’s wishes, turned over to the Museum of Prince Paul that was moved there in 1934. The museum collections were located at the New Palace until 1948, when the building was handed over to the Assembly of Serbia. The New Court is currently the office of the President of the Republic of Serbia.

The designers were the architect Živojin Nikolic and the academic Nikolaj Krasnov of the Royal Academy. It is currently home to Crown Prince Alexander II and his family.

 It is a spacious and representative villa built of white stone in the Serbian-Byzantine style. The palace is surrounded by pergolas, park terraces, pools, a pavilion and a concert terrace. The palace, located on the ridge of a hill, provides a magnificent view of Dedinje, the Košutnjak forest, Topcider and Avala.

 The stone paved Ceremonial Hall is decorated with copies of frescoes from the monasteries Decani and Sopocane. The Blue Salon is decorated in a baroque style, while the Gold Salon and the grand Dining Hall are decorated in the style of renaissance. The marble columns in those rooms bear rich casetted wooden ceilings with bronze chandeliers. These rooms are decorated with precious paintings, cases and items from the royal collection. The rooms of the Grand and Small Library are decorated in the same style.

It was built between 1934 and 1937, designed by the architect Aleksandar Đordevic. The ground floor of this classicist building houses the grand Ceremonial Hall and an array of salons arranged in the styles of Louis XV and Louis XVI with Venetian chandeliers. The building also contains the Royal Library that once housed approximately 35,000 books and the Ceremonial Dining Hall set up in the Chippendale style.

 The palace complex also contains the Royal Family Church on the south side, connected to the main building by a columned porch. The temple is dedicated to St. Andrew the First-Called (the slava of the Karageorgevich family). The building was modelled after the Church of the Monastery of St. Andrew on Treska in Macedonia built in 1389 by Andrew, son of King Vukašin. The church was designed and built at the same time as the main building.