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The Lighterman – Greenwich Peninsula M103

Client: Knight Dragon Developments
Ardmore Construction
Architect:  Carey Jones Chapman Tolcher
Location: Greenwich Peninsula
Balconies: 148 Cassette® Balconies


The Lighterman project on the Greenwich Peninsula, is a prominent feature on the skyline, reaching 23 storeys up and including some 224 apartments. Essential to the block’s developer Knight Dragon, was the speed of delivery and install of balconies, ensuring a seamless blending of balconies and façade and deliverability of their high build specification.


Having early design input into this innovative project, Sapphire was able to offer significant benefits to the project. Glide-On™ Cassette® balconies are lightweight and approximately half the weight of steel alternatives, which can reduce the number of brackets required to connect back to main structure, potentially saving one casting per day when compared to traditional methods.

Installation process

Step 1: Bespoke balcony design incorporated into Sapphire balconies through the use of screen printed bands as fascias to the front of the Cassettes®.

Step 2: Sapphire anchors incorporating thermal breaks are cast-in to the slab , prefitted with 1-piece steel arms connected to anchor.

Step 3: Balconies were manufactured and assembled at Sapphire’s Winchester production and storage facility.

Step 4: Using Sapphire’s innovative Counter Balance Lifter (CBL) balconies were installed rapidly, with installers safely inside the apartments, and without need to install soffits afterward.


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