The architectural appearance of Heihe is a clear reflection of its turbulent history as a border city, which over a few decades transformed from a small settlement into a modern metropolis. Several key stages can be distinguished in its development, each leaving its unique mark.
Traditional Manchu and Chinese Architecture (17th–19th Centuries)
The historical core of the region was not Heihe itself, but the city of Aigun (now the Aihui historical district) located 30 km to the south. It was founded in the 17th century as a military outpost of the Qing Empire. This period was characterized by:
- Fortress Architecture: The city was surrounded by defensive structures typical of Manchu fortifications of that time.
- Traditional Buildings: Buildings were erected in the classic Chinese style. Today in the historical district of Aihui, one can see reconstructed buildings stylized as "antique", giving an idea of the old city's appearance. An example of religious architecture from that period is the Guandi Taoist Temple, built in the 18th century.
Russian and European Influence (Late 19th – Early 20th Centuries)
After the signing of the Treaty of Aigun in 1858 and the start of active border trade with the Russian Empire, European features began to appear in Heihe's architecture. This style can be characterized as provincial eclecticism.
- European Style Buildings: Historical buildings reminding one of the architecture of neighbouring Blagoveshchensk have been preserved on the city streets.
- Mixing of Styles: In the development of that time, Russian architectural motifs were combined with local traditions, creating a unique border flavour. This trend is especially noticeable in the old part of the city.
Socialist Period and Modernism (Mid-20th Century – 1990s)
After the formation of the PRC and especially with the beginning of the reform and opening-up policy in the 1980s, a period of rapid growth began for Heihe. Urban planning of this time focused on functionality and quickly solving housing issues.
- Functional Development: Standard residential and administrative buildings appeared, often influenced by the Soviet architectural school.
- Beginning of Transformation: In the 1980s and 1990s, dilapidated single-storey buildings began to be demolished en masse, freeing up space for more substantial structures. The city began to grow rapidly, turning from a "small village" into a large settlement.
Contemporary and Post-Modern Architecture (Late 1990s – Present Day)
Modern Heihe is a city built literally over the last few decades, which defined its architectural appearance. It is often called China's "calling card", demonstrating economic power on the border.
- High-Rise Development: The urban landscape today is defined by modern high-rise residential complexes, office buildings, and large shopping centres, such as "Huafu".
- Eclecticism and Post-Modernism: In search of identity, modern architects often chaotically use elements of traditional Chinese architecture (for example, turrets in the form of pagodas) on the roofs of modern buildings, which does not always look harmonious.
- Large-Scale Infrastructure Projects: Symbols of the newest era are iconic structures emphasizing Heihe's status as an international hub. These include the "Blagoveshchensk — Heihe" Road Bridge, opened in 2022, and the world's first cross-border cable car currently under construction.
- New Districts: Active construction is underway not only in the centre but also on the outskirts, for example, in the railway station area, where a new business centre of the city is being formed.