A new £102,000 extension is being built on to the hall owned by Stroud Town Council.
It will be used as a backstage green room and equipment store freeing up space in the hall, and incorporate much needed extra toilet facilities.
As part of that work, the path behind Lansdown Hall will be widened and extended to improve stage and service access.
The work is being carried out using some of the £105,000 worth of recent grants to the community venue.
A £45,000 grant from Biffa Award has paid for air-to-water heating pumps, new radiators, extra insulation and other energy-conserving measures.
Gloucestershire Environmental Trust (GET) awarded £30,000 towards extensive repairs to the roof, the gutter and downpipe system, windows and badly-damaged stonework.
This is in addition to £30,000 awarded from GET for the works to the gallery in 2011-12. The grants by Gloucestershire Environmental Trust (GET) are paid out of Landfill Tax contributions donated by Cory Environmental.
Garfield Weston Foundation awarded £30,000. Along with some funds from Biffa Award and the town council, this will pay for a new equipment store/green room and some back stage improvements.
Extensive repairs are being done to the hall’s exteriors, especially the stonework.
Town councillor Steve Hurrell, chair of the Lansdown Hall Working Group, said: “The town council is working closely with the charity which runs Lansdown Hall to ensure there is minimal disruption during this important work. We will also work with the district council in relation to the work and how it affects the use of Bank Gardens park.
“The end result will make the hall much easier to manage for the staff and improve the facilities for the increasing number of community groups wanting to hire it. The new back stage entrance for the building will make organising events much simpler.
“The work on the new extension is due to be completed by the summer. The other grant funded building repairs and alterations are currently in negotiation with contractors and we hope they will start in spring 2015.”
The town council bought Lansdown Hall in 2010 to save it from closure. It is run by a charitable trust and provides a community space for the town.