A frameless glass box extension or a contemporary glass conservatory allow laminated glass beams to support structural glass. Simple but incredibly effective. With advances in glass and their structural capabilities, stand-alone glass boxes allow fine line buildings and glass rooms.
Their simplicity and almost clear appearance are appealing to planners; Extensions can be added with little visual impact on the original structure, which may be listed or in a conservation area.
Add to that the latest innovations in solar control they offer outstanding solar and thermal protection, while reducing the need for artificial light.