Scotland's most expensive apartment that comes with a butler is on the market for $2.9 million. But the future buyer won't legally be allowed to live there full-time, the listing agent says.

• Scotland's most expensive apartment in St. Andrews is on the market for $2.9 million.
• The two-bedroom property overlooks the world-renowned Old Course and has a butler service.
• However, the future buyer would only legally be allowed to use it as a second home.

The most expensive apartment in Scotland which overlooks a world-famous golf course is on the market, according to Savills' online listing. 

The two-bedroom property next to St. Andrews' Old Course is on the market for £2.3 million, or around $2.9 million, the listing states. That's the highest price per square foot of any residential property in Scotland currently on the market, according to a Savills press release.