Parliamentary candidate Guy Kiddey thinks it will boost tourism.
High Peak Lib Dems are proposing a series of initiatives to regenerate the constituency's towns under the slogan #ProjectRegenerate.
One idea is to build a new roof on Buxton's station, which would create new business opportunities and jobs, and impress visitors to the town.
"Besides making it a more comfortable place for travellers, the roof would provide space for small shops, a cafeteria and tourist information. There could even be a bicycle hire point. It would also impart a sense of the grandeur of Buxton - a bit like St Pancras station does for London," Mr Kiddey says.
The proposed design, by Jeremy Poulter of Stockport-based Poulter Architects, takes inspiration from the station's former iron structure, but the roof would this time be built using cross-laminated timber.
The design would extend the station towards the preserved fanlight. The Japanese garden would be relocated, probably towards the east of the station buildings.
"Buxton aims to be Britain's leading spa town and it needs a station worthy of that aspiration. Hopefully next year the Crescent Hotel will reopen and that will bring more high-spending visitors to the town," Mr Kiddey says.