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Lillie Square, Brompton

Contractor: Colorminium London
Architect:  John McAslan + Partners
Location: Fulham, West London
Balconies: 129 Cassette® Balconies
Value: £850K


Sapphire take a bespoke yet simple approach to each new challenge, incorporating unique detailing and sizing for each Glide-On™ balcony. The approach for Lille Square was no different with uncommon detailing such as an ‘I’ beam look to fascias and tight balustrade deflection tolerances.


Sapphire’s innovative balcony solutions allow for bespoke requirements. Working with the facade company, Sapphire offered training for the install teams and loaned bespoke install equipment to enable quick and simple installation of all the balconies. Sapphire was able to create bespoke fascias made from aluminium extrusion, to look like steel ‘I’ beams. Using heat strengthened 12+12mm laminated glass balustrades.

Installation process

Step 1: Working in partnership with the project’s façade contractor, Colorminium, Sapphire designed and manufactured 129 projecting balconies using its innovative Glide-On™ Cassette® technology.

Step 2: Sapphire manufactured and stored Glide-On™ Cassette® balconies for Lillie Square at its Winchester production facility while balcony connections were completed on-site.

Step 3: Once the façade was complete, the bespoke balcony cassettes (the frame structure and glass balustrade) were delivered to site, preassembled and factory-finished.

Step 4: Using Sapphire’s innovative counter-balance technology, the balconies were lifted into position and simply glided onto the pre-installed brackets.


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