Roger and Mirka Federer have reportedly hit a snag in their plans to build a $92 million mansion on the shores of Lake Zurich.
The tennis golden couple are building a stunning new family home in Rappersil-Jona, a municipality in the Wahlkreis of See-Gaster in Switzerland.
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The Federers had been hoping to move in by the end of 2021 but have since encountered a number of setbacks.
Local media in Switzerland reports construction has stopped because of contaminated land near the lakeshore.
The area was found to have 'scrap and rubble' throughout, which reportedly caused the suspension of the building application.
Environmental groups have also expressed concerns over the construction, with water protection organisation Aqua Viva among those to oppose the plans.
The Federers have now been forced to submit a new planning application, reportedly changing construction firm and architects.
Roger Federer confirms participation in French Open
Meanwhile, Federer has confirmed that he will grace the clay courts at the French Open and Geneva Open.
The 20-time grand slam champion made his comeback at the Qatar Open last month after a long absence following knee surgery.
Federer was beaten by Nikoloz Basilashvili at the quarter-final stage in Doha before opting against playing in Dubai and Miami.
But the 39-year-old Swiss announced on Sunday that he will make his return on home soil in the Geneva Open that gets under way on May 16.
Federer, now down to world No.7, will also be in the draw for the second grand slam of the year at Roland Garros, where he reached the semi-final two years ago in his first appearance at the Paris major since 2015.
He tweeted: "Hi everyone! Happy to let you know that I will play Geneva and Paris.
"Until then, I will use the time to train. Can't wait to play in Switzerland again."
Rafael Nadal will be a strong favourite to surpass Federer's tally of grand slam titles in Paris, where he has won the French Open a record 13 times.
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