The development on Penarth Street is conceived as three buildings linked by a commercial base that covers the majority of the site. The blocks vary in height between 7 and 9 stories. Blocks A and B house an innovative mix of co-living accommodation, with Block C affordable housing. All three are situated above commercial and light industrial use spaces at Ground and Mezzanine levels. The proposed structure is a series of RC frames with flat slabs, to offer straightforward coordination for services within ceiling voids, while maximising available ceiling heights. This structural approach also ensures it is as adaptable as possible for future change of use or change of layouts.  Circulation spaces are formed as reinforced concrete cores that are also used for stability. Extensive surface water harvesting is achieved by using blue roofs to limit the discharge from the site and stress on the local sewer infrastructure to previously agreed limits with Thames Water. Lyons O’Neil are providing the civil and structural services on the project.

This site was previously occupied by a steel frame warehouse with brick wall cladding and a concrete ground bearing slab foundation. The proposed new residential building comprises of five 2-storey modular residential units including 13 flats. The new shape of the building has been designed to reflect the existing warehouse geometry. To recreate the existing shape of the warehouse roof, an arrangement of cranked steel beams has been adopted. These are spanning onto steel columns bearing onto a RC raft foundation. For resisting lateral loads, the building relies on an arrangement of steel portal frames and braced bays. These are proposed to be formed in light gauge steel stud walls acting as racking panels. Both the timber roof and the 1st floor, comprising an RC slab cast onto a metal deck, are acting as rigid diaphragms transferring the horizontal loads to the portal frames/braced bays.

This new build commercial and residential development in Hackney, London is located on contaminated ground and a site surrounded by sensitive structures including a Grade II listed building. The development consists of three multi-storey RC frames, a single storey steel frame and a basement below covering the entire 2800m² footprint of the site. The basement wall, which will be formed up against sensitive boundaries, has been detailed to maximise space for the client and minimise temporary works. We implemented an effective risk management process to identify, assess and minimise critical risks relating to construction and commercial aspects of the project, and developed an appropriate solution to meet client objectives. The basement will be formed using contiguous piles, propped at the head by a ground floor transfer slab on which the RC frames will be built directly off. We achieved a simple flat slab form of construction for ease of construction and a slim and efficient element design to maximise internal space and reduce build costs.

‘Best Family Home over £1.5M’ winner at London Evening Standard New Homes Awards 2017. The project involved the demolition of a 1960’s industrial building and formation of a 5 storey commercial building, and 8 new 4 storey residential townhouse units on a tight site in Ravenscourt Park. The site is approx 17m x 55m long, boarded on 3 sides by existing buildings. There is a common basement under both buildings, utilised as a car park under the residential building and an office space under the commercial building, and formed in RC. The basement perimeter is formed in sheet piles driven through the sand and gravels into the underlying clay strata. At ground floor level within the residential building, large continuous RC downstand beams provide the clear widths for parking, and support the ground floor slab and upper level loadbearing walls. The residential superstructure above ground floor level is formed using load bearing solid blockwork walls which support steel and engineered timber joist floors. Perimeter walls are cavity blockwork. Both walls act as shear walls in both directions to resist lateral loads, with windposts used to strengthen piers between large perimeter window openings. Vertical movement joints are typically at 5.2m c/c’s on party wall lines. Balconies to the front, and large storey height openings to the rear of each units are formed in structural steelwork supported off the RC ground floor slab. The commercial superstructure is an RC flat slab frame with a timber frame roof. The rear of the building steps in as the building progresses upwards and the edge of the RC floor plates reflect this.

Previously on the site stood an old snooker hall of which was demolished to make way for a new gym and 31 residential apartments. The new gym will be situated to the Basement with additional commercial on the Ground Floor with the residential properties on the upper 4 floors. Traditional reinforced construction throughout and the basement formed in contiguous piled wall and load bearing piles.

This project comprised of a high-end mixed-use development on an urban brownfield site. Historic use of the site as a pub with beer cellar, combined with soft ground and projecting footings from adjoining buildings added to the complexity of the reinforced concrete raft solution. After presenting several scheme options, a reinforced concrete frame was proposed to achieve an open-plan ground floor storey. This acted as a podium to construct the residential flats above in load bearing masonry and suspended timber floors. This afforded benefits to the robustness detailing of the upper floors and allowed the main contractor to progress with few specialists required.

The main structural works comprise of the addition of a mansard extension and new steel balconies to the top and rear of the existing building respectively. The mansard is formed as a series of lightweight steel stability frames in both directions, supported on a grillage of new steelwork at 4th floor level which bear onto existing loadbearing perimeter walls and internal columns. The steel balconies are formed in galvanised steelwork tied back to the existing steel frame, with thermal balcony connectors where these pass through the external cavity wall.

The site was formerly occupied by a 3 storey residential building which was demolished to make way for a high quality residential development. The development comprises of a 4 storey building at the front of the site and a 2 storey building with basement at the rear. The main building is piled with a reinforced concrete frame construction up to 3rd floor along with a hot rolled steel storey on top. The single occupancy unit at the rear consists of a reinforced concrete basement and a loadbearing masonry / steel frame superstructure over.