Almost £350,000 will be spent on renovations to the General Registry building in Douglas, after Tynwald approved the funding this week.
The aim is to create improved court facilities, with independent access for the judiciary, waiting areas and advocates' meeting space within the existing buildings.
There will also be remodelling of part of the ground floor at Murray House on Mount Havelock, to relocate certain legal aid and tribunals staff from the registries building
The project is earmarked to start early next month and is due to be completed by the end of May.
'Too early to tell' what caused fire
Firefighting foam may have killed fish in Silverburn River
Additional road closure for TT filming ahead of MGP qualifying
'Knives and sharp implements' left outside charity shops