Three houses at Drottninghög will be demolished. There will be five new buildings - and two brand new blocks.

"It's about developing the district," says Christine Delander Eksten, construction project manager at Helsingborgshem.

The stair rails are reused

The new building uses materials from the houses to be demolished.

These include stair rails, bricks, concrete elements and sinks.

- We do not save as much money financially, but it is about saving the environment, says Christine Delander Eksten.

See more from the extensive building in the video above.