Warning signs now surround crumbling wreck that was nearly a five-star hotelThe historic mansion was being considered for a £19m five-star boutique hotel development just four years ago but is now crumblingView 4 Images Warning signs surround the grade-II listed property in Blaenavon (Image: Local Democracy Reporting Service)Concerns have been raised that a former mansion, which was being considered for redevelopment as a five-star boutique hotel just four years ago, will collapse in the next two years. ‌The Grade II-listed property in Blaenavon, which is missing most of its roof, was built nearly 230 years ago. There had been hopes that a £19m redevelopment would have transformed Ty Mawr, which translates as Big House, into a thriving hotel. Nick Horler, independent councillor for Blaenavon, raised serious concerns regarding the condition of the building, also known as Blaenavon House, at Torfaen Borough Council's most recent meeting. ‌She said: "The council previously worked with the private owner of Blaenavon House/Ty Mawr to bring forward proposals for a five-star boutique hotel.

Source: Daily Mirror March 19, 2026 09:23 UTC