The increased cost corresponds to less than one percent of the project's budget. The fact that the construction seems to be more expensive is mainly due to the complexity of the project and that the costs for the land and construction work have been higher than budgeted for.

- We got off to a rough start as the soil conditions turned out to be significantly worse than the geotechnical survey has shown, says Håkan Högdahl, construction project manager in a press release.

On Tuesday, the Committee for Support and premises in Skellefteå decided to develop an action plan to achieve a zero result.

- Kulturhuset is a complex building, but the goal is, just like in all other projects, to keep budget, says Tomas Teglund (S), chairman of the Committee for Support and premises in the press release.

The project is expected to be completed in one and a half years.