Sunday was the last day for fans to visit Indonesia’s national stadium before its largest ever modernizing works. By the end of summer next year capacity will fall to 77,000.

Today was the last chance for locals to freely wander around Gelora Bung Karno. The national stadium in Jakarta opened its doors just days before its largest redevelopment in history. Beginning in late June, the upgrade will last until August next year.

Included in plans is the replacement of all seats, many of which remain benches rather than individual seating. As a result, capacity is expected to fall from 80,000 to 77,000, still remaining the largest in Indonesia.

Largest changes will occur outside, though. The stadium’s concrete facades will be expanded by new pylons throughout the perimeter. Five long ramps are planned with them, spiraling around the stadium to provide smooth crowd flow. Worth keeping in mind, crowd circulation has been notorious at this stadium, resulting even in deaths, as witnessed during an accident in 2011 (2 people killed).

Topping the new outer ring, a ribbon of solar panels is planned, part of the building’s optimized energy policy. Underneath, within the newly created shaded promenades, enough room for retail stalls and catering facilities will be created.

All works are expected to cost over 500 billion rupiah ($37 million currently). This public investment is part of Jakarta’s preparations to host the 2018 Asian Games.