Legal Work


Some retail projects we have worked on:

Marks & Spencer

Melliss have been responsible for structural engineering issues associated with the development and refurbishment of many stores for Marks & Spencer throughout the British Isles.

Our association with Marks & Spencer started in the 1960s with a major development project at their Marble Arch 'flagship' store in Oxford Street.

M&S Marble Arch

M&S Marble Arch, Oxford Street

This is Marks & Spencer’s premier store in London. Melliss have been involved with developments and extensions to these premises since the 1960s. The recently completed development to provide an additional sales floor at third floor level now allows trading at five levels.

Gross store area  30,380 sq. m. (327,000 sq. ft.)

Sales area  19,480 sq. m. (209,700 sq. ft.)

Throughout the 1970s and continuing to the present, Melliss, have provided services for Marks & Spencer, which include both new build and refurbishment/extensions, including construction of distribution warehouses and works to their head office in Baker Street.

A selection of stores Melliss have been involved with:

M&S Plymouth Design Model

M&S Plymouth

A total refurbishment of the existing three storey store, including adding an additional four storey building at a construction cost of £18 million.  The new structure is supported on piled foundations, with the super-structure formed in structural steelwork.

M&S London Colney & Cheshunt

Both stores have been extended by 25,000 sq.ft. with provision for future mezzanine floors. In both cases, the extensions are treated as stand alone additions.


M&S London Colney - The extension is steel framed with horizontal cladding panels and new entrances to revitalise the store facades. Internally the existing mezzanine floor has been extended to provide a restaurant on the upper level. At one entrance, the structure has been reframed to give a double storey height feature. Refurbishment of the existing building has necessitated new plant to be installed and allowed for green initiatives to be included in the upgrading of the store and plant.


M&S Cheshunt - The visual presence of this store has been greatly enhanced by recladding of the existing east elevation in terracotta rain screen to match the extension to the south elevation. New entrances on the south elevation and at the south east and north east corners of the building are constructed in full height glazing with glass roofs supported on minimal steel framing.

Here the store extension is steel framed with an allowance for a green roof to be installed. Piled foundations include for future extension and allowed for alternate existing stanchions to be removed in the new to existing store link. Removal of the existing stanchions required new steel beams to support the existing lattice roof trusses which span 28m.

M&S Banbury - New Development, situated on the historical site of Banbury Castle with difficult ground conditions caused by the position of the moat, which were overcome with the use of large diameter bored piles and ground consolidation using a vibro technique and pressure grouting.

M&S Stratford-upon-Avon - New development with existing facade retained and tied into new framework behind.

M&S Chelmsford - New Development incorporating a curved elevation to follow the profile of the River Cam, the first and second floors being hung from roof level cantilevers to provide a clear walkway at ground level.

M&S Cardiff - Recent development to provide additional sales floor footage at second floor level, with re-location of staff quarters within new steel framed structure at roof level.

M&S Castlepoint, Bournemouth - Fit out of new shell to provide approximately 9,294 sq. m. (100,000 sq. ft.) of sales floor on 3 levels within new shopping centre

M&S Trafford Centre, Manchester - Fit out of new unit within Manchester's largest shopping centre, including new customer lift and new plant

M&S Exeter - Exeter store incorporated highly modelled brickwork and stonework elevations which were achieved using faced precast concrete panels. The finished building received a mention in the Concrete Society Awards for the year of construction.

Great Western Designer Outlet Swindon

Great Western Design Outlet - Swindon

Acting for both BAA McArthur Glen and Carillion Properties Ltd. as consulting civil and structural engineers for their successful and widely known designer outlet project, which is the largest covered outlet centre in Europe.

Great Western Designer Outlet Swindon

The works have involved the sensitive alteration and conservation of the existing Grade II* listed buildings. The site was originally developed and designed by Isambard Kingdom Brunel and Daniel Gooch, later buildings were designed by Joseph Armstrong and George Jackson Churchward.

A Civic Trust award was given to Melliss for their valuable contribution to the quality and appearance of the environment for the project.

We have been employed by Tesco and their property management company, Styles and Wood on their recent TFT (two floor trading) programme to provide mezzanine sales floor area at their Irlam and Telford stores, and also on the extension to the Kensington store.

We have also been involved in the design of mezzanine sales floors for the new Homeplus concept stores, which include new stores at Manchester, Southampton, Telford, Chelmsford and Staines, and are currently involved in several further schemes including Bristol, Cribbs Causeway, Bromborough, Edinburgh and Nottingham.

Dockside Chatham Maritime

Chatham Maritime

A Factory Outlet Shopping Centre providing 14,570 sq.m. (156,800 sq. ft.) net retail floor space at Chatham Maritime situated at the east end of the Medway tunnel. The project, valued at £20 million, involved new construction both within and around a Grade II* listed building known as the Boiler Shop and which is constructed in wrought and cast iron.

Dockside Chatham Maritime

The project involved close liaison with English Heritage, Medway's Conservation Officer, Planning Department and Building Control departments to agree both the principles and final details of recladding, loading and fixing to the existing structure which is a very interesting and historically important example of early iron framed buildings in this country. New construction both within and totally encompassing the existing frame was kept completely independent from the existing structure, both above and below ground level.

Dockside Chatham Maritime 

At the west end of the building a new barrel vaulted tri-girder roof has been constructed as part of the atrium main entrance to the development, whilst at the east end, the first floor food court is roofed by a fabric canopy supported on a long span arched truss at the apex and perimeter horizontal trusses springing from large reinforced concrete support buttresses.

Dockside Chatham Maritime