This new development comprises of a row of four-storey terraced houses laid out to suit the Kingston Road corner plot. The terrace comprises of 9 units, each with 4 bedrooms and a roof terrace. The foundations are reinforced concrete ground beams on RC piles. Great care was needed in planning the foundation and drainage works in order to avoid the trunk sewer running in close proximity to the front of the site. The superstructure comprises of engineering joists, timber floors and roof supported by steel beams bearing onto loadbearing blockwork party walls. The concrete blockwork party walls are also used to stabilise the building in one direction, whereas steel portal frames provide adequate level of stiffness in the other direction.
This project saw us involved in the refurbishment of a 1890’s former maternity hospital in Stockwell. We carried out extensive research in the London Metropolitan Archives to ascertain the history of the site and discovered the presence of a hidden basement. Our experience with historical buildings allowed us to identify the existing hospital construction and present solutions which worked with the existing rather than independently and irrespective of. Additionally the project included two new build structures which were constructed using light gauge steel frames prefabricated in panels and brought to site for erection. Lyons O’Neill also provided all the Civils input on the project thus giving a one stop shop for the Client.
This project comprises two blocks of three residential townhouses, each with 3 /4 bedrooms over three floors on land previously occupied by a single house in Queens Park. Simple precast units and discreet, concealed stability frames allowed us to achieve the large openings required whilst maintaining a economic and buildable scheme.
The proposals comprise demolition of the existing three-storey traditional structure and construction of a reinforcement concrete frame supported on CFA piles from ground to first floor, to provide a large commercial area. This acts as a podium slab to support a three-storey cross-laminated timber structure, clad with facing brickwork creating residential units. The long rectangular site is bounded by a public house, restaurant, residential terrace and a car park, which provide a range of complex boundary details, which were negotiated through the party wall process.
This development within Northolt comprises of a row of three-storey terraced houses laid out to suit the sloped site profile. The terrace comprises of 7 units, each with 4 bedrooms, parking and a private garden. The foundations are deep mass concrete strips with suspended ground floor slabs to account for the potential for heave from the underlying clay. Several foundation system solutions were explored to suit the clients and contractor’s needs. The superstructure comprises of timber floors and roof supported by steel beams bearing onto loadbearing blockwork party walls. As with all Lyons O’Neill projects, we strived to achieve a drainage design that included SuDS features as much as possible. Water butts are used within the gardens to re-use rainwater for gardening purposes and a attenuation tank was designed for 1 in 100 year storm events for all remaining surface water on the site.
A new secondary school providing facilities for 1000 pupils to serve an associated residential development in West Ham, East London. Due to the limited space available, a four storey “superblock” is proposed. The sports hall is to be located centrally to the block on the second floor and the main hall below this on the ground floor. The roof is to be accessible to provide social areas and a MUGA pitch. A steel framed structural solution is proposed with profiled metal deck and concrete composite slabs designed to act compositely with the beams. Cellular steel beams are proposed for the long span beams above and below the sports hall in order to allow services to pass through whilst maintaining the head room requirements. In order to meet sustainability requirements, a large number of PV panels need to be supported on additional framing above the roof level, including on a portal frame spanning the width of the MUGA pitch. A piled foundation solution is proposed with an insitu RC suspended ground floor slab.
Built over two, three and four storeys, phase one will see the demolition of an existing building and the construction of the new junior school that will provide a learning environment – with specialist facilities for art, music and performance – appropriate sporting facilities across the elevated playing areas and the two Multi-Use Games Areas (MUGAs). Phase two will see the delivery of the STEM Centre and Sixth Form Hub; these cutting-edge facilities will consolidate STEM subjects into a modern central space. The Hub will also provide university-style learning – including large independent study spaces and social areas and a café.
Ropemakers Academy is a new SEMH (Social, Emotional, and Mental Health) school for 80 pupils in Hailsham, designed with ECE Architecture & Willmott Dixon. We have undertaken extensive upfront civil and geotechnical investigation to help us develop a passive and economic strategy for developing the site which has been vulnerable to ongoing slope stability issues. The landscaping has been augmented to be sympathetic to a stable slope profile and to negate retaining structures where possible. Site-wide land drainage has been designed to remove the primary catalyst of the slope instabilities. The proposed structure is a split level two/three-storey steel frame onto a piled raft, which is partially cut into the terrain. Dr Jonty Clark OBE, the CEO of The Beckmead Trust, said: “In all my years I have never seen a design that takes the needs of the children so seriously, I can clearly see the care and attention that has gone into the design.”
This project involved the construction of a new 4FE special education needs school building on the site of the current school. The existing school needed to remain operational throughout the construction sequence. The new building allows the school to expand, and provide better quality learning facilities for the pupils. The steep terrain of the site, protected trees, restricted vehicular access and phased occupancy has made the development of the enabling works and below ground drainage a project in itself, warranting thorough coordination into construction sequencing and methodology. The proposed building, a braced steel frame with precast hollowcore decks. This solution was chosen to be cost effective, but also facilitated an accelerated installation time. The superstructure bears onto a reinforced concrete raft slab which distributes out the loads on to the chalk substrate. Lyons O’Neill also designed the below ground drainage infiltration system to discharge the surface water from the site to the water table.
