Spot Blue explained that the scheme, dubbed the Marmaray Project, is one of the greatest engineering feats to have taken place in Turkey, and it will help to ease traffic congestion, while supporting expanding suburbs. As the city's population rapidly grows, enhanced infrastructure such as this will be integral.
The railway will open in October - four years after its initial completion date. For the property market it can't come soon enough, enabling residential areas to expand and widening the mark for real estate investors looking get a foothold in Turkey's largest city.
An underwater railway tunnel beneath the Istanbul Strait, improvement of the Gebze-Haydarpasa and Sirkeci-Halkali surburban railway lines and electrical and mechanical updates have made up the main parts of the Marmaray Project. Some 37 stations have also been rebuilt, while three new structures have also been erected.
Julian Walker, director at Spot Blue, said: "The Marmaray Project will be a real shot in the arm for Istanbul as a whole, but a number of districts will really benefit. It will not only provide an east to west transport corridor between the European and Asian sides of the city, but there will also be a connection at Yenkapi to the north-south metro line, completing a very effective and convenient transport system."
He added that the railway line will not only make it easier for Turks to commute from suburban areas, but it will increase interest from foreign buyers, including buy-to-let investors. Halkali is one district that Spot Blue expects to be of interest, thanks to its high-capacity line link with Gabeze on the Asian side of the city.