Горизонт (Horizon) space station

Horizon Orbital is one of the first - and remains one of the largest - fully self-sufficient orbital installations. Designed before the spread of the standardized station projects, in the early expansion era when each station was an individual project and a massive undertaking, it was laid down in 2157. Seen at the time as both a symbol of mankind's newfound aspirations and - in a much more pragmatic sense - a significant investment in attempts to shorten the supply lines and centralize logistics, the project proved immensely successful, and a lot of later large-scale zero-g construction projects took their ques from the Horizon. Built with modularity in mind, the station has seen constant extensions and extensive reworks. The shipyard and manufacturing arms were added in 2225, making the Horizon the biggest and longest serving space station in the history.

The kitbash I've made for it is now on sale in the store: check it out!
https://www.artstation.com/karanak/store

Personal project I've been busy with for a while. I thought about making a large-scale piece, fairly grounded sci-fi piece like this for a long time.

Personal project I've been busy with for a while. I thought about making a large-scale piece, fairly grounded sci-fi piece like this for a long time.

Drydock
An entire arm of the station is dedicated to a massive drydock, capable of servicing even the largest ships.

Drydock
An entire arm of the station is dedicated to a massive drydock, capable of servicing even the largest ships.

Living quarters
One of the oldest modules on the station, the living facilities are fully self-sufficient and are capable of supporting a population of small town.

Living quarters
One of the oldest modules on the station, the living facilities are fully self-sufficient and are capable of supporting a population of small town.

Shipyard module. 
The shipyard module is shown here with the newly constructed "Sladen" docked on the side.

Shipyard module.
The shipyard module is shown here with the newly constructed "Sladen" docked on the side.

Comm Spire
This array houses systems related to communication as well as guidance/navigation/and control - including a massive hyperspace beacon.

Comm Spire
This array houses systems related to communication as well as guidance/navigation/and control - including a massive hyperspace beacon.

At 130 million polygons, the model is at a practical limit of what you can achieve with Sketchup on a generic PC. Any higher, and you'd need a professional workstation.

At 130 million polygons, the model is at a practical limit of what you can achieve with Sketchup on a generic PC. Any higher, and you'd need a professional workstation.

Kitbash elements used in the station construction. 
I've decided to sell some of them, so 90 pieces are now on sale in my store - check them out.

Kitbash elements used in the station construction.
I've decided to sell some of them, so 90 pieces are now on sale in my store - check them out.