A FOCUS ONCIVIL AND STRUCTURAL ENGINEERING

A leading multidisciplinary construction consultancy.

calfordseaden is a leading construction and property consultancy. Our comprehensive range of services cover chartered building and quantity surveying, project management, architecture, civil and structural engineering, mechanical and electrical engineering, sustainability and health and safety. Through our complementary and mutually supportive competencies, we provide our clients with a truly multi-disciplined service through our six offices.

Our Civil and Structural Engineering team are appointed on a variety of projects across a wide range of sectors, including single buildings to multi-million pound urban regeneration schemes. We recognise the value of close working relationships and provide a full range of professional services tailored to meet our clients’ needs and requirements. Our portfolio of projects includes work in the public and private sectors, including offices, factories, distributions centres, hospitals, schools, social and private housing and other building projects.

calfordseaden has extensive experience in traditional construction, but is also a leading authority in the design and use of modern methods of construction, sustainable design and construction, renewable technologies and other important factors pertaining to construction and property development. calfordseaden was one of the first construction consultancies to sign-up to the 2012 construction commitments. Our experience and constantly evolving expertise means we anticipate the needs of our clients and provide them with the best and latest solutions and perspectives. We believe in providing value for money for our clients and pursue a flexible and innovative approach to the challenges we encounter on their behalf.

ABOUT US.

Regional Distribution Centre, Northfleet

Retail

ClientPrivate

Duration2009-2014

ValueConfidential

ServicesArchitectureStructural and Civil Engineering

Contract JCT 98 WCD

FundingPrivate

This project involved provision of design services for a 41,250m² regional distribution centre. calfordseaden was initially appointed to provide architectural and structural engineering services for the detailed design of Phase 1 of Lidl’s proposed new retail distribution centre in Northfleet. We were subsequently appointed to Phase 2, for provision of redesign and analysis services for the warehouse and office spaces to suit the changing operational needs of the company.

Towards the end of Phase 1 the client identified a requirement for an auditorium facility. We examined the viability of incorporating a 120 seat auditorium into the scheme and, following the client’s decision to progress this, very promptly designed the facility, including sight-lines, acoustics and materials to form a high quality conference facility.

Phase 2 of the project was effectively a continuation of Phase 1, with the required changes and adaptations incorporated into the Phase 1 scheme drawings, to facilitate the Lidl Operation team’s changing requirements.

The external works including earthworks, drainage, contaminated ground issues, attenuation tanks for surface water and pumps on both surface water and foul. Approximately 50,000m² hard standing and on site roadways/car parks were also included in the development.

One of the unique aspects of this site is the garden that has been provided for the staff. The calfordseaden team coordinated the hard and soft landscaping for the garden and provided various options for the garden furniture.

Following the successful planning consent the calfordseaden team maintained a continuous daily input into the project and weekly presence on site. We have acted as design co-ordinator throughout, ensuring compliance with appropriate codes and regulations and liaising with the very many specialists required to complete a project of this size and complexity.

£55M North West Cambridge Development

Mixed Use & Regeneration

ClientUniversity of Cambridge

Duration2015-2017

ServicesNEC Supervisor for Site Wide Infrastructure BIM Advisor

Contract NEC3

Sustainability Code Level 5BREEAM ‘Excellent’

Main image Courtesy of Mecanoo

This major development creates a new district for Cambridge, developing 150 hectares of former farmland to provide accommodation for University and College staff and Post Graduates and will provide private sale homes. Supporting facilities for the new community are also being provided including a three form of entry primary school, community centre, doctors surgery, supermarket, hotel, senior living homes and sports pitches. The entire development is set in an idealic landscape inclusive of parkland and lakes.

calfordseaden’s BIM team is currently providing an advisory role to the University of Cambridge and the consultants involved with the NWC Lot 5 phase of the development. The scheme pilots the University’s BIM initiative and we are proud to be providing advice to the project team in terms of managing and documenting their BIM protocols, ensuring the client’s own set of existing Employer’s Information Requirements (EIRs) documents meet and exceed industry standards. calfordseaden has also been engaged to compare the consultant’s BIM Execution Plan (BEP) and the contractor’s BIM capability assessment against the original requirements.

Model reviews are also being carried out as a checking procedure to inform the client of model validation, both in terms of good modelling conventions. This includes naming standards, and reporting on how rich with data the consultant’s models are, reviewing all against the initial EIRs and Asset Information Requirements (AIRs).

£2M 45 Pont Street, Knightsbridge

Commercial

ClientCadogan Estates Limited

Duration2011-2014

ServicesArchitectBuilding SurveyorM&E Engineer Structural Engineer

Contract JCT

FundingPrivate

SustainabilityBREEAM ‘Very Good’

calfordseaden was involved in the conversion of the accommodation within this late Victorian Grade II Listed building from a single tenancy office into ‘serviced offices’.

The key to the success of this project, which was self-funded by the client, was the decision by Cadogan Estates to convert this property whilst working closely with an experienced operator. By matching the needs of the end user to the existing building this minimised the amount of alteration work required.

The existing services had been installed in the mid 1970’s when the building was converted to office use. These services had been extensively adapted over the years by the tenant, with much being surface run. All the services needed replacing and upgrading to modern standards.

The building had been built to a very high standard. The main challenge for the design team and the greatest achievement was the integration of the new service routes into the building which removed unsightly surface wiring and Cat 6 data cables. We also installed comfort cooling and replaced all of the existing Mechanical and Electrical services.

For the repairs to the existing fabric calfordseaden worked closely with the Historic Building consultant at Donald Insall and the Conservation officer at the Royal Borough of Kensington to determine the most appropriate techniques. For example, our approach to cleaning the brickwork included carrying out sample cleans on small sections to determine the most suitable technique. Based on this assessment a decision was then made as to what, if any, remedial works were appropriate.

£25M The Essence, Bromley by Bow

Mixed Use & Regeneration

ClientCircle Anglia

Duration2011-2014

ServicesEmployer’s Agent Cost Consultant Clerk of Works M&E Engineer Sustainability Advisor Structural Engineer

Contract JCT 05 WCD

Sustainability Code Level 3

calfordseaden was initially appointed to assist in the due diligence, site investigation report and the production of a conceptual design for the foundations, basement construction, superstructure (including transfer structure) and drainage to RIBA Stage 3+ for this new town centre development.

The scheme provides 208 residential units for private sale, shared ownership and affordable rent in a mix of one, two, three, four and five bedroom dwellings including sizeable wheelchair homes over six to eleven storeys. The development also includes a 1,700m2 Tesco made to shell and core standards Tesco retail store, two further smaller retail outlets and back-up facilities for the retail space.

We produced reinforcement estimates, indicative details for cladding and masonry support and a specification for materials and workmanship. We worked collaboratively with the architect and cost consultant in a series of workshops to review methods of construction and hone the design.

We suggested an alternative form of construction for the basement walls, based on using permanent steel sheet piles with welded clutches, vibrated into the ground. This eliminated the need for road closures, reduced the temporary works and saved a significant amount of time on site. This information was presented in a Stage D+ Report, and included drawings schedules specification notes and other information to assist tenders with their bids.

We were subsequently commissioned by the client to develop the detailed design of the piled foundations, ground beams, basement slab and walls.

In addition, we are also appointed as employer’s agent on behalf of the Registered Social Landlord for the development of the affordable housing units.

Awards: First Time Buyer Readers’ Awards Best Large Development’ and ‘Best Show Home’ categories 2014.

£6M Prendergast School, Lewisham

Education

ClientLakehouse

Duration2014-2015

ServicesArchitect Structural EngineerM&E Engineer BREEAM Assessor

Contract JCT D&B

FundingLocal Authority

Sustainability BREEAM ‘Very Good’

calfordseaden was appointed to provide a range of services utilising BIM for this primary school project. This project was our first in-house full BIM coordinated school project. The scheme provides a two form of entry in the primary phase and is part of Lewisham’s strategy to accommodate ever growing pupil numbers.

The initial planning approval had already been granted for an existing 2D design. We worked collaboratively with the contractor and project stakeholders to produce a 3D model that incorporated a number of improvements over the original design, whilst remaining within the restrictions imposed. The model was shown to clients during meetings which they found extremely beneficial in providing a greater understanding of the buildings appearance and suitability. The structural, M&E and architectural models were used to enable the production of robust tender information.

The building heights had already been set by the planning approved drawings; the stepped building and low heights gave us very limited ceiling service zones, therefore BIM helped us fully understand the implications and allowed us to creatively overcome the problems before getting to site. BIM also helped our team and client identify constraints, opportunities and solutions to be explored in the design.

An internal ‘heart space’ forms the hub of the school with its split levels in order to address the sites topography; the full height nature of the atrium provides many challenges with regards to servicing. With the use of BIM however, we were able to address these issues by introducing service runs through the split levels, the atrium zone and the adjoining hall.

BIM also helped us to identify any clashes between the structure, the fabric and services of the new build which we were able to resolve before construction began. The school uses our data rich model as live O&M manuals.

£40M Rifle Street, Poplar, London

Residential

ClientBellway Homes

Duration2015-2017

Value£40M

ServicesCivil & Structural Engineering

Contract Bellway Bespoke Contract

FundingPrivate

calfordseaden carried out a due diligence review of the available data for this large development located within a Flood Zone. Issues highlighted included the Docklands Light Railway which adjoins the site, the associated risks for cranage, and issues with drainage capacity.

calfordseaden was subsequently appointed to provide Civil and Structural Engineering services and is responsible for designing the piled foundations, substructure, rc framed superstructure, adoptable road and SuDS drainage.

The site, which is bounded by public highways and the Docklands Light Railway, will provide 254 mixed tenure residential units across three reinforced concrete blocks varying in height from four to twelve storeys with undercroft parking. The site will consist of houses and flats of which 52 will be for affordable rent, 28 for shared ownership and 174 for private sale.

Block 1 will be a U shaped building, with a podium area and green space for residents at first floor and car parking for 20 cars. Block 2 will consist of ten to twelve storeys running parallel to the DLR, with a private road running between the blocks.

The sites location provided a complication with respect to clearing conditions prior to demolition and construction; the production of additional documents was necessary to obtain approval from the rail company.

A large storm water attenuation tank was required for the site as there was restricted flow of only 5I/s allowed into the public sewer; the attenuation was located under the car park surface. The public sewers outside the site have the capacity to take the full foul and surface water flows, but the limited depth of the existing drains to the north of the site meant that all drainage had to be connected to the public sewer to the south, necessitating a complex solution.

The design and draughting has been undertaken using full 3D software and BIM.

The scheme will also include sustainable technologies including PV panels and a green roof.

£2.4M Building 5, Hatfield, Hertfordshire

Commercial

ClientPitney Bowes

Duration2011-2012

ServicesArchitectM&E Engineer Structural Engineer Employer’s Agent

Contract Traditional JCT

FundingPrivate

calfordseaden was commissioned as architects to analyse a number of potential premises suitable for the relocation of Pitney Bowes Head Office. The criteria for potential buildings included the condition of the M&E installations as well as the space and style. For this reason the calfordseaden team was led by an M&E Engineer who had previously worked with Pitney Bowes, and an architect with extensive experience in space planning and phasing/decanting of business operations.

After conducting interviews with Pitney Bowes, six buildings were analysed however these did not meet requirements. After reassessing the target area a suitable building was identified and our architects developed layout and interior design proposals for the office, conference rooms, break-out spaces and canteen areas. We also provided proposals for the agile working approach for the relocation of 600 personnel.

The project included the strip out and refurbishment of two floors of existing office space totalling 40,000sqft. Existing electrical services were stripped out with new services installed including small power, lighting & controls, fire alarm, data, security and UPS systems as well as upgrading all heating, ventilation and air-conditioning systems.

Throughout the project we liaised with our clients parent company based in the US, providing guidance on procurement and contract processes. We also carried out interviews with all the UK and European operation heads to establish the design and to understand the requirements of the building. Contract administration was also included within this scheme whereby we issued instructions and payment certificates accordingly.

In addition to the head office works, we also undertook similar exercises for Pitney Bowes to relocate 100+ call centre staff to a new facility, relocation of a Service Centre and reconfiguration of a Training Centre.

£3.6M Maydew House, Bermondsey

Mixed Use & Regeneration

ClientLondon Borough of Southwark

Duration2014-2018

Value£3.6M

ServicesProject ManagerContract AdministratorBuilding SurveyorQuantity SurveyorM&E EngineerClerk of WorksPrincipal Designer/CDM

Contract TPC 2005 Partnering

calfordseaden was appointed by the London Borough of Southwark to provide multi-disciplinary services in relation to the internal and external refurbishment of an existing 25 storey tower block comprising of 144 flats.

Initial enabling works phase currently in progress to strip out each flat back to the concrete structure; this included the removal of a large quantity of asbestos materials, ahead of the larger refurbishment including the addition of five storeys to the tower and construction of a new build block elsewhere on the site to provide additional residential accommodation.

Scope of works:• Strip out of existing building including asbestos removal• Additional 5 storeys added as a vertical extension• New heating/hot water distribution throughout• Alterations to district heating system to separate adjacent blocks• Demolition of podium• Relocation of community centre into a refurbished tower block to free up development space elsewhere on the site• New build apartments• New hard and soft landscaping scheme

Key challenges include:• Residents in-situ across three floors during strip out works• Mixture of tenants and leaseholders• High profile scheme – highly visible land mark building• 3 level “scissor” style layouts resulting in more complex fire/emergency egress strategies• Complex services arrangements• Temporary heating and hot water required to avoid interruption of services• Asbestos removal (extensive)• Refurbished block to achieve Code for Sustainable Homes Level 4 accreditation• Structural capacity for additional storeys• Adaptations to existing district heating system also serving adjacent blocks• Police and radio antennae on roof (must be kept live)

£15M Parkside Retirement Village, Cheam

Senior Living

ClientViridian Housing United House ConstructionLondon Borough of Sutton

Duration2009-2015

ServicesArchitect, Employer’s Agent, Cost Consultant Civil & Structural Engineer, M&E Engineer, Sustainability Advisor, Code Assessor, CDMC

Contract JCT 05 WCD

FundingHCA Grant

Sustainability Code Level 4

calfordseaden was initially appointed by the London Borough of Sutton to review design options, work up development costs and financial models and advise on whether the existing sheltered housing site could be redeveloped within current planning constraints and be tendered to RPs.

In 2010 we won the council led competition with our client to develop a new 131 unit scheme including extra care, sheltered and supported housing for young vulnerable adults.

Our design makes best use of the site to provide level access, affordable housing and services for older people and vulnerable adults whilst complementing the local conservation area and conforming to the requirements of the Supplementary Planning Document, ‘Cheam Village’.

The planning brief required a critical number of bed spaces and dwellings but had issues over daylighting to surrounding properties. We modelled our proposal and found that lowering part of the building and raising another achieved the same accommodation but with reduced impact on surroundings and negligible cost affect.

We also applied the latest thinking, design standards and trends from the HAPPI Report and Dementia Voice whilst incorporating assistive technologies.

We led detailed consultation with existing residents and the local community in an exhibition held at the local library.

We designed this scheme utilising Building Information Modelling (BIM) in a fullmulti-disciplinary role using integrated and analytical design tools.

Awards: RICS Design Awards Finalist 2015, Bronze Considerate Constructors Award 2016.

OFFICE LOCATIONS King’s Head House King’s Head Yard Borough High Street London SE1 1NAT 020 7940 3200E london@calfordseaden.com

Stewart Court 214a Hagley Road Edgbaston Birmingham B16 9PHT 0121 454 1688E birmingham@calfordseaden.com

20 Station Road Cambridge CB1 2JDT 01223 653 177 E cambridge@calfordseaden.com

St John’s House 1a Knoll Rise Orpington Kent BR6 0JXT 01689 888222E orpington@calfordseaden.com

The Maltings Locks Hill Rochford Southend-on-Sea Essex SS4 1BBT 01702 548449E southend@calfordseaden.com

Calford House Wessex Business Park Wessex Way Colden Common Winchester S021 1WPT 01962 718300E winchester@calfordseaden.com

calfordseaden LLP is a Limited Liability Partnership Registered in England and Wales number OC315838Registered Office: Devonshire House, 60 Goswell Road, London EC1M 7AD where a list of members is kept

www.calfordseaden.com