The Trainspotting and Star Wars star had applied for permission from the local authority to carry out work on the roof at his Carse of Gowrie home.
Documents submitted by his architect, David Bell Architects, to the Perth and Kinross Council showed plans to replace the lead roof with the single-ply membrane Sarnafil.
An agent for David Bell Architects argued that the proposed changes to the 18th-century house were justified, given the high risk of theft.
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The document read: “The building is at high risk due to the value of lead.”
The agent said that the planned replacement material, Sarnafil, “has no resale value, making it a non-target for thieves”.
They added that the existing lead roof is “beyond repair” and has suffered from fatigue cracking, splits, and failed flashings.
In the document, the agent also said that patch repairs are no longer viable and have led to water ingress, threatening the historic fabric below.
“The existing lead roof is beyond repair, suffering from fatigue cracking, splits and failed flashings,” the agent said.
“Patch repairs are no longer viable and have led to water ingress, threatening the historic fabric below.
“Lead theft may also be a recurring issue, particularly on remote or vulnerable buildings such as this, making replacement with like-for-like materials unsustainable from a security perspective.”
(Image: Jordan Strauss)
Perth and Kinross council rejected the plans, ruling they would not preserve the “fine detail character and special architectural interest” of the C-listed building.
It said the move would be contrary to the local development plan through the use of “non-traditional methods and materials”.
Property records show that McGregor bought his home in 2023 for £2.35m after it had been on the market for offers over £2.15m.
The Carse of Gowrie home comes with a gate lodge, a courtyard of outbuildings and has more than 15,000 sq ft of living space across three floors.
It also features a two-bedroom flat, stores, and a wine cellar on the lower ground floor.
Since buying the home, McGregor has been given permission to erect a replacement garage along with creating a new master bedroom and bathroom suite.
The film star also won a fight with the local authority to repair “yellowing” and “water damage” to the mansion.
In December, McGregor was given the green light to renovate a lodge on the grounds of the estate.
Last year, McGregor said in an interview that he wanted to move back to Scotland at some point in the future.
He said: „I definitely started to feel this pull home. I never saw it coming, it’s weird.
„I think whoever made the world started with Scotland and got it right.“