Support us Our appeals Blue Plaques Appeal Donate Your donation will help to pay for blue plaques to be created, installed and celebrated on buildings in Cambridge and South Cambridgeshire. Please help us to commemorate and celebrate significant people or events and help to inform people about local history. We are the local charity that installs and maintains blue plaques on buildings in Cambridge and South Cambridgeshire. It costs around £1,200 to create, install and celebrate each plaque. There are also ongoing costs of maintaining the plaques. The majority of work is carried out by wonderful volunteers.