The exterior of the New Castle of Sigulda built by the Knyaz Kropotkin family in 1878 has retained its neo-Gothic style, meanwhile, its interior became a pearl of national romanticism in 1937, when it hosted the Latvian Union of Writers and Journalists. Nowadays, the manor center buildings host workshops and salons of craftsmen and artists, where new skills can be learned, and souvenirs can be purchased. Since 2016 Sigulda New Castle is under reconstruction.

The manor center began to develop in the fore-castle area of Sigulda Medieval Castle during the 17^th century. There are still a few remaining 18th and 19th-century buildings built during the ownership of the Von Borghs and Kropotkins. These are the Summer Castle, the New Castle, the White Castle, the vagar's (supervisor of serfs) house, the servants' house, a barn, a laundry house, and a vegetable and fruit basement. The manor center is enclosed by chipped boulder walls with a splendid gate structure.

The New Castle was built during the time of Duchess Olga and Duke Dimitry Kropotkins from 1878 until 1881 using the materials from an older building that stood here during the 17^th century.

The master’s house was built in the neo-gothic style by Jānis Mengelis from Cēsis. The planning and the shape of the house are simple. The architectural and artistic value of the castle is achieved through the successful use of Gothic forms and the color shades from the recycled chipped boulders. Looking through any window, you will have a panoramic view of the Gauja valley including the ruins of Sigulda castle. Farther away you will see the ruins of Krimulda and Turaida. On the opposite side, there is a neatly landscaped yard.

During WW1 this building was destroyed. In 1922, following the agrarian reforms, New Castle became the Writers’ Castle because it was used by the Latvian Union of Writers and Journalists. The building was in unusable condition after the war so the Union had to invest a large amount of money for restoration. In the 1920s and ’30s, full room and board were offered to writers and literary types as well as other visitors.

In 1934 the castle was acquired by the Latvian Press Society. From 1936 to 1937, major reconstruction work was done under the leadership of architect August Birkhans. Building plans were completely re-drawn. The overlooking tower was heightened, the terrace around the building was expanded and a new balcony was added to the second floor. Inside, a new modern-age interior design was installed. It became the most notable example of national modern design in the Baltic region. Many famous artists of that time such as Niklāvs Strunke, Pēteris Ozoliņš, Kārlis Sūniņš, and Vilhelms Vasariņš took a part in creating it. Pictures of the castle were found in French art magazines as the press at the time would report. The Writers Castle became a popular visitor's destination after the renovation.

In 1938, the monument of Kronvaldu Atis, made by Teodors Zalkalns, was unveiled at the front of the New Castle. Kronvaldu Atis was a teacher and a publicist and helped initiate the second wave of the New Latvian movement.

During WWII, the New Castle was used as a headquarters for the Nord division of the German army. After the war, the USSR Council of Ministers made it a recreation house for high state officials. In 1953, the Health Department of the Latvian SSR established the Sigulda rehabilitation center which was in operation until the restoration of Latvian independence.

From 1993 through 2002, the New Castle held the Sigulda City council and then, beginning in 2003, the Sigulda District Council.

Next to the New Castle, there is a yellow house known as the Summer Castle. It was built at the turn of the 18th or 19th century in the style of classicism. The elongated wooden house was built by a master-builder from Cēsis, a man called the last of the Livs of Vidzeme, Mārcis Sārums.  Initially, Kropotkin's family used the building as a personal orthodox church after the completion of the New Castle in 1881. Services were held by the orthodox priest of Ledurga parish. The building also came under reconstruction when the Writers and Journalists Union obtained ownership and remodeled it to become a boarding-house.

In the summer of 2018, the first of the renovated buildings of the Sigulda Castle Quarter was opened - the manor barn, where craftsmen and artists' workshops have begun their work - everybody at the Textile workshop can try their skills in weaving, in the paper workshop “Viktora vēstules” - try their hand at calligraphy and love letters, create your own whistle-blower - in the ceramics workshop, and enjoy the healthy ice-creams at the Sigulda ice cream factory. It is also possible to visit the walking stick workshop and create your own walking stick, to visit "Ādas artelis" (Leather workshop) as well as "Baltu Rotu" gallery.

In May 2018, the reconstruction of the Sigulda Castle Quarter and territory improvement works were completed, during which the manor's wooden castle, the dwelling house, and the farm building or barn were rebuilt - they had not been repaired for decades. During the reconstruction of Sigulda Castle Quarter, the garden of Sigulda castle was also altered, where new walking paths were built, benches, and also bicycle stands were placed. The castle garden was renovated according to how the orchard of the manor house looked like at the end of the 19th century - it contains more than 50 ornamental tree and berry seedlings, as well as flowering shrubs, giving the main emphasis to the restored buildings of the manor.

Reconstruction works are currently underway in the New Castle of Sigulda, an important monument of Latvian cultural history and considered as an outstanding example of neo-Gothic style architecture and an example of national construction of the interior.