Henry, a staunch supporter of Charles II, restored the family fortunes and built a series of residences to replace the slighted Raglan Castle.
The proposed enabling development would involve the construction of two new wings which were intended to accommodate more units than would be possible in the original house.
Conservationists were divided over the proposals: Save Britain's Heritage concurred with the developer's analysis, others, including the Georgian Group expressed fears that the plans would constitute significant overdevelopment of the house and site.
[7] In 2015 Monmouthshire County Council funded a protected species survey required for consideration of the redevelopment proposals.
[13] In May 2020, the property was put up for auction, with a guide price between £200,000 and £250,000 but was described as "an almost total wreck" by Country Life magazine, confirmed by photographs of the interior.
[18] However the Monmouth antiquarian Charles Heath doubted the attribution in 1804, writing, "The house is said to have been built by Inigo Jones but I do not think the report well founded".
[19] The historian William Coxe, writing in his An Historical Tour In Monmouthshire in 1801, was also sceptical; "It does not reflect much credit on the taste of that eminent architect, having a long, straggling front, and being built in so low a situation as to exclude all prospect from the habitable apartments.
"[20] Local historian Keith Kissack described the house as "not very impressive externally"[21] but the interior contains "three good-quality, typically Jacobean decorated ceilings.
"[1] John V. Hiling, in his study The Architecture of Wales: From the first to the twenty-first century, describes Troy as "austere and bleak".