30M

HARRY Styles has some tricky steps to negotiate in his £30million mansion project — restoring a rotten staircase.

The former One Direction singer is paying experts to return the 300-year-old feature to its former glory as he turns three properties into one huge home.

The staircase revamp could delay the renovation project, which is slated for completion by October 2027.

A source said: “Harry doesn’t do anything by halves.

“This is a very ambitious project so there are bound to be stumbling blocks.

“The staircase is the latest snag but it’s a lovely period feature and he’s going to get the very best craftsmen to make it as good as new.

“It will take a while because it has to be taken apart piece by piece, restored and then put back in place, so it could well affect the deadline.”

In planning documents, Harry’s team say the condition of the 1734 staircase has deteriorated and it had some “poor-quality repairs” over the years.

He has appointed heritage carpentry experts to assess the best way to restore the feature.

Harry, 32, who is dating US actress Zoe Kravitz, 37, is merging the Georgian and 18th-century properties in Hampstead, North London.

The extensive renovation project includes high-end amenities such as a basement cinema, pool and gym.

The development has faced opposition previously from neighbours concerned about disruption and blocked light.

Despite the staircase issue, Harry had a spring in his step while in cut-off jeans in London after his weekend shows at Wembley.