Sectors - Residential
Diglis Basin Phase 5 - Worcester
PEP are acting as structural design consultants alongside Taylor Woodrow.s in-house civil engineering team for this project, part of a major redevelopment of the Diglis Basin canal area in Worcester.
The project comprises a mix of 2 and 3 storey traditional loadbearing masonry houses and apartments, plus a series of high-rise apartment blocks; some with undercroft parking. The high-rise blocks utilise reinforced concrete flat slab frame construction, albeit with some loadbearing masonry construction for the upper storey penthouse units. The buildings have projecting balconies are masonry clad and with lightweight standing-seem roofs.
Foundations are piled throughout due to poor ground conditions. Substructure works to some blocks were complicated by the adjacent wall to the canal basin, which has ground anchors running back into the site. These could not be disturbed, nor additional surcharge loads applied to the wall, so pile and ground beam arrangements were detailed to fit around the anchors.
Old Windsor Hospital - Windsor
This project involved the conversion of a semi-derelict Grade II listed Victorian hospital into 24 luxury 4, 5 and 6 bedroom houses.
The project necessitated completely stripping off all finishes in the property, underpinning of the existing foundations, re-roofing and general alteration works.
The Quadrant . Colindale, London NW9
PEP were appointed as civil and structural engineering design consultants for this housing development, consisting of 96 number two and three bedroom apartments on an old factory site in north London. The four and five storey construction is supported on a transfer slab over a semi basement car park providing 102 parking spaces.
Pinner Road Development - Harrow
A new-build development providing two, three and four storey blocks of apartments constructed over a two storey concrete framed office and retail unit, over a 4m deep underground car park / basement structure.
Superstructures consist of RC framed construction for the office and retail units levels, with timber framed construction utilised for the apartment storeys above. The basement is constructed using a perimeter secant pile wall which is propped in the permanent condition by reinforced concrete basement and cover transfer slabs. A below slab pumped drainage system has been incorporated to alleviate water uplift pressures on the basement slab. Piled foundations were adapted throughout.
Project Client: McCann Homes
Project Value: £13.5m
Lancaster Gate . London W2
Conversion of a six storey, Grade II listed property in central London into seven luxury apartments. The project included the incorporation of a box frame in the basement to allow for the removal of existing walls, insertion of a lift and an additional mansard roof extension.
Kings Lodge . Ruislip, Middlesex
This project involved the conversion of Times House, a 70,000 ft2 1960.s office block, into 92 one and two bedroom apartments. Structural works included the construction of an additional penthouse floor on the seven storey section and two additional floors on the four storey section of the development, which required strengthening of the original piled foundations
Artisan Quarter . London NW10
A distinctive, modern development in the heart of a thriving community. The project comprises a mix of twenty five number 1, 2 and 3 bedroom apartments and townhouses around an inner courtyard, which have been constructed on a confined site with limited access. The development was aimed at the Artisan market.
Biro House . South Harrow
A new-build development comprising four to seven storey blocks of apartments constructed over a new basement car park. The project provides a total of 180 apartments, plus a small retail unit and offices.
Superstructures consist of RC flat slab framed construction supporting masonry cladding. The basement box was constructed using secant piling and insitu concrete walls.
PEP were responsible for all civil and structural engineering aspects of the scheme, including external works. The drainage proposals allowed for storm water retention and controlled discharge.
The Grange . Harrow Road
PEP were appointed as civil and structural engineering design consultants for this conversion and refurbishment scheme. Works included the conversion and extension of an Edwardian Grade II Hospital Building, plus further conversion works to an adjacent listed building.
After demolition of the existing hospital outbuildings, a number of new build houses and apartment blocks were constructed, providing a total of 96 housing units, including two 4 storey blocks of apartments over a basement car park. The basements were constructed using contiguous piling and insitu concrete transfer slabs to support the superstructure loads above. The project included construction of a new 45 bed hostel for YMCA.
PEP were responsible for the design of all civil and structural engineering aspects of the scheme, including external works and drainage on the steeply sloping site.
St Williams Yard - Kings Cross
This is a new-build, high-rise development of 154 luxury apartments over basement car parking in the Kings Cross area of London. PEP were appointed as civil and structural engineering design consultants for the project, which is on the site of the former St William of York school.
The building is six storeys high (including the basement) and utilises reinforced concrete flat slab frame construction with projecting balconies. The balconies use a proprietary thermal break system to reduce cold bridging at the junction of the balcony slabs and main frame. The frame is carried on a 750mm thick reinforced concrete raft foundation, which forms the lower slab to the basement. A combination of steel sheet piling and reinforced concrete retaining walls were used to construct the basement, which runs close to the site boundaries.
The Bamtec system of prefabricated reinforcement mats was used for the floors at each level, resulting in significant savings in the construction programme due to its speed of installation.
Willow Grange - Watford
PEP are acting as civil and structural design consultants for this project, consisting of 174 high-spec apartments on the former British Waterways headquarters site in Watford.
The project involves the conversion and refurbishment of the existing headquarters building (pictured) plus a series of new-build apartment blocks across the site. The new-build units comprise three and four storey blocks of apartments in traditional loadbearing masonry construction, supporting precast concrete hollowcore floors and traditional timber trussed rafter roofs. Foundations are of trench fill construction, deepened to allow for the influence of numerous existing trees across the site.
The number of retained trees has lead to a complex external works and drainage design to ensure that root systems are not damaged by the construction works. This has required numerous .no-dig. zones to be incorporated into the design. The storm water drainage system utilizes SUDS principal.