Originally planned for 2010, the second stage of refurbishment commenced when funding was insured in May 2012 with the deconstruction of the old main stand.
The foundation-stone for the new, 3,617-capacity stand was laid in the following month.
Work on it was completed in the summer of 2013, when the fully renovated stadium was inaugurated with a friendly match between Union and Celtic F.C..
The new building, which is 100.5 m wide and 23.5 m high, also includes hospitality, media and other functional facilities.
The costs for its construction were planned to amount to 15 million €, of which 2 million where contributed by the club.
Sponsors accounted for 10 million.
A further 3 million were injected by a holding formed to own and manage to stadium, shares in which were made publicly available.
 Over four thousand members of the club and sponsors bought shares in the company so formed for 2.7 million €.

In its new form, the stadium was sold out for the first time on 31 August 2013, when 21,717 spectators saw Union beat FC St. Pauli 3–2.
Originally planned for 2010, the second stage of refurbishment commenced when funding was insured in May 2012 with the deconstruction of the old main stand. The foundation-stone for the new, 3,617-capacity stand was laid in the following month. Work on it was completed in the summer of 2013, when the fully renovated stadium was inaugurated with a friendly match between Union and Celtic F.C..
The new building, which is 100.5 m wide and 23.5 m high, also includes hospitality, media and other functional facilities. The costs for its construction were planned to amount to 15 million €, of which 2 million where contributed by the club. Sponsors accounted for 10 million. A further 3 million were injected by a holding formed to own and manage to stadium, shares in which were made publicly available.  Over four thousand members of the club and sponsors bought shares in the company so formed for 2.7 million €.
In its new form, the stadium was sold out for the first time on 31 August 2013, when 21,717 spectators saw Union beat FC St. Pauli 3–2.
Stadion An der Alten Försterei