The site includes a tower-ruin, gothic gates, a grotto, a gatekeeper's house, a well, a stable courtyard with gates, a building with an Ionic portico, two stables, a blacksmith shop, an icehouse, two greenhouses, the Tuff Bridge, and "Parnassus."

The Orlov estate is located on the western shore of the Orlov Pond, formerly known as the Factory Pond.

The first dacha, built here around 1800, was state-owned but later passed to the advisor of the Polish Chancellery, F. E. Kuder. In the early 19th century, the dacha included the main house and a wing, next to which was a small regular garden with a radial layout. An English garden stretched along the pond's shore, while to the south were the peasant fields of the village of Haluzhi. In the 1820s, the dacha belonged to Baroness Stroganova.

In the early 1830s, it was acquired by Count Alexei Fyodorovich Orlov, commander of the cavalry regiment, which camped in Strelna every summer. Count Orlov, who enjoyed the special favor of Emperor Nicholas I for his role in suppressing the Decembrist uprising in 1825, wished to have a dacha on the pond's shore in Strelna, and the previous owners were relocated.

In the mid-1830s, an extensive palace and park complex was created according to the designs of architects P. S. Sadovnikov and I. Charlemagne. The landscape garden occupied the entire territory of the dacha.

In 1834-1835, a large wooden palace in the Gothic style was built in the park according to P. Sadovnikov's design. The palace had a symmetrical composition: a two-story main building was connected by single-story gallery-passages to the wings. A tall four-story tower adjoined the northwest corner of the main building. Octagonal pilasters at the corners of the building, crenellated parapets, bay windows, and pointed gables gave the palace a picturesque appearance. Orlov's dacha was considered one of the most beautiful in the vicinity of St. Petersburg. In front of the palace's facade, facing the pond, stood two equestrian statues on high pedestals, cast by P. Klodt. A wide staircase leading to the park was adorned with cast-iron eagles, symbols of the owners' family.

The park structures were also executed in the Gothic style: the gatekeeper's house, gates, gothic well, tower-ruin with a grotto and observation deck, greenhouse, and a complex of stables with outbuildings. All were built according to the designs of P. Sadovnikov and I. Charlemagne.

In the 1830s-1840s, several plots were added to the Orlov estate: the southern one, owned by merchant Khavsky, and the western one, which came from the settlement and the old barracks complex after the route of the old Narva road was changed. In the 1840s-1850s, P. S. Sadovnikov transformed this territory, merging it with the previously created garden and erecting new park structures. A new landscape pond appeared in the estate, next to which a tower-ruin and grotto were built on the shore. A stone Gothic guardhouse with gates was erected by the highway. In the southern part of the estate, near the square pond, a labyrinth with a gothic well was laid out. At the southern boundary of the estate, a greenhouse farm and a stable complex emerged.

In the center of the pond, renamed from Factory to Orlov, an earthen Love Island was created, connected to the shore by an elegant bridge.

According to the 18th-century tradition, a labyrinth with a house in the center was built in the park. When a visitor opened the door, a huge bear, standing on its hind legs, would charge at them with a roar. This was a stuffed animal operated by a system of levers.

One of the stables of the stable complex with a semicircular roof and entrance gates with towers can be seen on Front Street. The building is decorated with bas-reliefs of horse heads, created by sculptor D. I. Jensen. The other buildings are located on the military department's territory and are used as veterinary warehouses.

During the Great Patriotic War, all structures in the park were destroyed, except for the tower-ruin and the well. The gatekeeper's house and gothic gates were restored, and the park's layout was renewed.