The residents of a 200-year-old Ayrshire farmhouse have been told their plans for a replacement conservatory aren't in keeping with their design of their historic home.
The applicants had sought to replace the extension at Borland House, south of Dunlop, with a modern uPVC structure.
But their plan was knocked back by planners after heritage bodies objected to the design and materials to be used.
Consultees, Architectural Heritage Society of Scotland, said: "While the society has no objection to the replacement of the existing conservatory, we do object strongly to the proposed use of uPVC for a B-listed building of this age.
"No indications of the materials of existing structure but would expect conservatory to be constructed of traditional materials, such as timber or cast iron.
East Ayrshire Council planners took a similar view.
In a delegated report, a planning officer stated: "While the conservatory may not be an original feature of the building, it appears to be of a traditional timber construction and matches the finishes of the windows within the main house.
"The proposal will replace the conservatory with a modern PVCu framed conservatory with the glazing arrangements notably altered."
The report added that the proposal would have a 'detrimental impact'.
The officer added: "Although to the rear, the proposed replacement conservatory will have a negative impact upon the character of the listed building with the materials and glazing arrangements being notably altered."
In its description of the building, Historic Environment Scotland states: "A good example of the larger type of farmhouse found in this area, with a well-preserved and relatively unaltered group of outbuildings.
"The present house was probably built between about 1810 and 1820. The North and South byre ranges and the threshing barn, which all have similar ashlar margins, are probably contemporary.
"However, the farm itself is much older than this, and is mentioned in a valuation roll of circa 1640.
"The Borland estate passed in to the Dunlop family, and was divided up in the late 17th century."
Don't miss the latest Ayrshire headlines – sign up to our free daily newsletter here
