The Challenge:

Work began with the demolition of an existing building followed by the design and build of a high-end mixed use development. This included basement car parking, offices, residential apartments and retail space.

Main challenges include complex, heavy structural alterations required.

A two storey enclosed bridge between two existing buildings had to be removed, whilst ensuring that that the House of Fraser department store remained open during the busy Christmas Period. The structure was integral to the main building structure, with extensive temporary works required to maintain stability to prevent any possible collapse.

Another challenge included reducing ceiling zones to eradicate Right of Light issues. This meant that under the beams only 115mm clear zone was provided of which light fittings were 110mm deep.

The Solution:

The structural challenges were overcome by working closely with the demolition contractor and both permanent works and temporary works engineers. Kier identified a number of potential issues with the initial proposed method of removal and guided the engineers to the most practical solutions ensuring stability was maintained throughout.

Ceiling zone challenges were overcome by working closely with structural engineers to ensure the designed clear void was not reduced further when the structure deflated. We also worked with the lighting supplier to reduce the depth of the light fittings in places where structural works meant the 115mm was not achievable.

The Impact:

Two months programme reduction: The team used precast cladding panels with brick slips cast and windows incorporated. It took six weeks to install the cladding panels on site. This resulted in a saving of more than two months on the programme compared to the use of traditional methods.

Improved Carbon Reduction: By engaging a specialist CHP (Combined heat and power) supplier, we were able to demonstrate to the client hat we could get a higher efficiency CHP for no added cost. This allowed the client to exceed the target 22% carbon reduction by an additional 4%.

Improved Carbon Reduction: By engaging a specialist CHP (Combined heat and power) supplier, we were able to demonstrate to the client hat we could get a higher efficiency CHP for no added cost. This allowed the client to exceed the target 22% carbon reduction by an additional 4%.

" From the outset the aim of this joint venture between Terrace Hill and Doughty Hanson & Co Real Estate was to deliver a high quality central London development that was unique and able to stand out against others in the Victoria property market. The Kier London team and consultants have achieved this by aligning their approach, attention to detail and quality standards with our own. Howick Place is a development all those involved can be truly proud of. "
Steve Lee Sang Project Director Terrace Hill Group PLC

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