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Remaining empty for over 30 years, these Georgian brick buildings had fallen into a state of significant structural disrepair.
We delivered a package of works to retain, repair, stabilise and reconfigure the terrace for the new development of a boutique hotel called Ardeir London.
Our demolition team carried out the structural stabilisation, basement deepening and superstructure packages. The neighbouring Flying Horse public house remained trading throughout all project works.
Demolition
Constraints
02
From the outset, there were several major constraints and complex requirements. All of these required the utmost attention in our temporary and permanent design management processes with the client team and supply chains.
To enable effective clearance and deliveries, we created a pit lane outside 5-15 Sun Street. 97% of all materials removed from the site were diverted away from landfill despite the logistical and spatial constraints.
Stabilisation
03
Several attempts to stabilise the building and support failing floors had occurred before our possession of the site. But the extent and condition of the existing supporting temporary works was extremely limited. As safe routes and exclusion zones were created, our engineering team assessed the structure and designed a robust temporary works scheme to provide the structural stability and access required to progress the permanent works.
Internal Works
04
The client aimed to radically alter the internal layout of the terraces, which we undertook in collaboration with project engineer AKT II. This collaboration was particularly crucial as the neighbouring One Crown Place development was tight to the building fabric, requiring further amendments to our external scaffolding temporary works schemes. Occasionally, shared opportunities presented themselves, allowing both contractors to benefit.
Stiffening the internal steel structure within the shell of the old buildings was coordinated with a MOLA watching brief within the deepened basements. For three properties, a 21 m deep mini piling approach with respective pile caps to support new steel framing was best suited. For the remaining three houses, underpinning was carried out when the basement level was lowered more extensively.
Floor amendments to incorporate new staircase openings and a lift shaft followed new basement sewer heading and drainage, RC slab construction in all six basements, waterproofing and blockwork walls. New timber floors were also provided throughout the terrace.
05
06
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Stabilisation
03
Several attempts to stabilise the building and support failing floors had occurred before our possession of the site. But the extent and condition of the existing supporting temporary works was extremely limited. As safe routes and exclusion zones were created, our engineering team assessed the structure and designed a robust temporary works scheme to provide the structural stability and access required to progress the permanent works.
Internal Works
04
The client aimed to radically alter the internal layout of the terraces, which we undertook in collaboration with project engineer AKT II. This collaboration was particularly crucial as the neighbouring One Crown Place development was tight to the building fabric, requiring further amendments to our external scaffolding temporary works schemes. Occasionally, shared opportunities presented themselves, allowing both contractors to benefit.
Stiffening the internal steel structure within the shell of the old buildings was coordinated with a MOLA watching brief within the deepened basements. For three properties, a 21 m deep mini piling approach with respective pile caps to support new steel framing was best suited. For the remaining three houses, underpinning was carried out when the basement level was lowered more extensively.
Floor amendments to incorporate new staircase openings and a lift shaft followed new basement sewer heading and drainage, RC slab construction in all six basements, waterproofing and blockwork walls. New timber floors were also provided throughout the terrace.
05
06
07
07
click to open
Stabilisation
03
Several attempts to stabilise the building and support failing floors had occurred before our possession of the site. But the extent and condition of the existing supporting temporary works was extremely limited. As safe routes and exclusion zones were created, our engineering team assessed the structure and designed a robust temporary works scheme to provide the structural stability and access required to progress the permanent works.
Internal Works
04
The client aimed to radically alter the internal layout of the terraces, which we undertook in collaboration with project engineer AKT II. This collaboration was particularly crucial as the neighbouring One Crown Place development was tight to the building fabric, requiring further amendments to our external scaffolding temporary works schemes. Occasionally, shared opportunities presented themselves, allowing both contractors to benefit.
Stiffening the internal steel structure within the shell of the old buildings was coordinated with a MOLA watching brief within the deepened basements. For three properties, a 21 m deep mini piling approach with respective pile caps to support new steel framing was best suited. For the remaining three houses, underpinning was carried out when the basement level was lowered more extensively.
Floor amendments to incorporate new staircase openings and a lift shaft followed new basement sewer heading and drainage, RC slab construction in all six basements, waterproofing and blockwork walls. New timber floors were also provided throughout the terrace.
05
06
07
08
06
06
click to open
Stabilisation
03
Several attempts to stabilise the building and support failing floors had occurred before our possession of the site. But the extent and condition of the existing supporting temporary works was extremely limited. As safe routes and exclusion zones were created, our engineering team assessed the structure and designed a robust temporary works scheme to provide the structural stability and access required to progress the permanent works.
Internal Works
04
The client aimed to radically alter the internal layout of the terraces, which we undertook in collaboration with project engineer AKT II. This collaboration was particularly crucial as the neighbouring One Crown Place development was tight to the building fabric, requiring further amendments to our external scaffolding temporary works schemes. Occasionally, shared opportunities presented themselves, allowing both contractors to benefit.
Stiffening the internal steel structure within the shell of the old buildings was coordinated with a MOLA watching brief within the deepened basements. For three properties, a 21 m deep mini piling approach with respective pile caps to support new steel framing was best suited. For the remaining three houses, underpinning was carried out when the basement level was lowered more extensively.
Floor amendments to incorporate new staircase openings and a lift shaft followed new basement sewer heading and drainage, RC slab construction in all six basements, waterproofing and blockwork walls. New timber floors were also provided throughout the terrace.
05
06
07
08
09
10
Stabilisation
03
Several attempts to stabilise the building and support failing floors had occurred before our possession of the site. But the extent and condition of the existing supporting temporary works was extremely limited. As safe routes and exclusion zones were created, our engineering team assessed the structure and designed a robust temporary works scheme to provide the structural stability and access required to progress the permanent works.
Internal Works
04
The client aimed to radically alter the internal layout of the terraces, which we undertook in collaboration with project engineer AKT II. This collaboration was particularly crucial as the neighbouring One Crown Place development was tight to the building fabric, requiring further amendments to our external scaffolding temporary works schemes. Occasionally, shared opportunities presented themselves, allowing both contractors to benefit.
Stiffening the internal steel structure within the shell of the old buildings was coordinated with a MOLA watching brief within the deepened basements. For three properties, a 21 m deep mini piling approach with respective pile caps to support new steel framing was best suited. For the remaining three houses, underpinning was carried out when the basement level was lowered more extensively.
Floor amendments to incorporate new staircase openings and a lift shaft followed new basement sewer heading and drainage, RC slab construction in all six basements, waterproofing and blockwork walls. New timber floors were also provided throughout the terrace.
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