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Sapphire supply and install 205 balconies for Pontoon Dock project

Sapphire supply and install 205 balconies for Pontoon Dock project

Pontoon Dock is part of the regeneration of the Royal Docks area, providing 236 residential units to meet the growing need for housing in the capital. This project forms a gateway to the Thames Barrier Park which “combines striking landscaping with adventurous planting”.

Residents will enjoy exceptional views from their Sapphire balconies over the River Thames park and the historic Royal Docks. The architects made use of BIM Level 2 to accelerate the project and facilitate smooth collaboration.


The challenge at Pontoon Dock was around how to effectively meet the client’s design needs while bringing the benefits of offsite construction and MMC. The design needed to incorporate the specification given and ensure that the balconies fit seamlessly with the surrounding buildings to maintain consistency.

There were also constraints based on the planning conditions which required Sapphire to manage meeting both NHBC drainage requirements while meeting the existing planning terms.

The site involved logistical challenges requiring “tight logistical planning” according to the Project Manager.

Install time was also a key concern for the site team who required an efficient hassle-free install to keep to the project programme. An additional challenge was working in coordination with the scaffold and other trades.


The design of some of the balconies featured a parallelogram to bring a unique look to the building and included a mix of balconies with and without soffits to match the surrounding buildings and meet the planning conditions. With consideration of the NHBC drainage requirements Sapphire ensured the balconies were appropriately drained while keeping within the terms of the planning.

Some balconies also featured low level solid end panels. One of the key benefits to offsite construction is consistency and superior quality control allowing the balconies to be manufactured in a controlled environment, enabling the exacting specification to be precisely met.

According to the project manager, "on time delivery was key". To meet the logistical needs of the site, they worked with the team to carefully plan deliveries in synergy with the programme.

Sapphire’s Glide-On™ technology also enabled a smooth install to be quickly completed, helping cut the full site programme by 4 months. The presence of scaffold on the lower levels would have posed a problem for traditional balcony methods but by using Sapphire’s Counter Balance Lifter (CBL) they were able to install balconies in a sequence to suit the needs of the site. This meant balconies could be installed on the upper floors while scaffold was still in use on the lower levels, adapting the install to fit with the other active trades and ensuring a seamless hand over.

Step 1 - Cast in anchors were cast into the slab & incorporated thermal break connections offering superior rigidity to the balconies.

Step 2 - Cassette® balconies were preassembled off site, including the balustrades, decking & Soffits.

Step 3 - Cassette® balconies were transported with balconies secured to each pallet, making transport both cost effective & safe. Balconies were pre-slung off site ready for installation upon arrival.

Step 4 - Once lifted into position, the Cassettes® simply Glide-On™ to the pre-erected support arms, before completing the simple mechanical fixings.

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Sapphire Balconies Ltd

Sapphire Balconies Ltd

Sapphire leads the field in the design, manufacture, supply and support of beautiful, high-quality, innovative balconies

Sapphire are uniquely positioned by being solely focused on the high rise residential market. It's this laser-like...
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