[5] In the years 2003–2010, the stadium underwent a complete reconstruction, including the building of four new fully covered stands.
[7] The grand opening after final renovation took place on 20 September 2010, with Sting's Symphonicity Tour concert.
The first match of the new stadium was a 1–1 draw between Lech Poznan and Motor Lublin played on 23 August 1980 with an audience of 18,000 people.
[9][10] Six years later the most specific elements of the stadium were built - four 56-meter-high masts with floodlights whose total illuminance was 1890 lux.
[11] Record attendance was noted on 8 April 1984, when the stadium was filled with about 45,000 spectators, while the official capacity at that time was only 40,000.
The opponent was Widzew Łódź and the match ended 1–0 with a victory for Lech Poznan.
A few years later, Municipal Stadium was equipped with an electronic scoreboard, which was placed behind the sector number 8.
The new North stand "completed" the characteristic U-shaped construction style of the stadium and increased its capacity by an additional 8,124 seats.
[13] Almost two years later, the roof construction covering all seats on north stand was built.
In comparison to the earlier architectural concepts, the last one changed the roof construction design.
The whole membrane is divided into equal segments – each of them is 9 meters long and gives the impression of wavy-like shape.
II is a movable structure, designed to ensure proper illumination of grass on some part of the pitch.
[17] During reconstruction, it was decided to build steeper stands in order to promote spectator interaction with the players.
However, a consequence of this solution is also poor grass growth on the football pitch because of sunlight hardly getting through.
I there is also an underground parking for cars and buses The remaining storeys are dedicated for players, referees, fans and the press.
II is located on the side of the historical fortification structure named Fort VIII Grolman.
North stand was built first, before revisions of stadium's architectural concept took place.