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鈥業t鈥檚 principally an office building,鈥� says the still-beaming architect, of the scheme he has just won. Well, that鈥檚 one way of describing it, but with respect to Timberlake, the co-founder of US practice Kieran Timberlake, it鈥檚 just a little bit more than that. It is also, for example, the US government鈥檚 planned new embassy to the Court of St James. And it鈥檚 worth something like 拢330m. And the client wants it to be a London icon. And most design competition winners don鈥檛 have their moment of triumph televised 鈥�

The US government wants the embassy, which will be built at Nine Elms in Vauxhall, to open in 2017. Construction work will begin in 2013 and one thing that we know for sure is that the main contractor, like the architect, will be a US firm 鈥� that鈥檚 a State Department rule. But Jerry Withers, the department鈥檚 man in charge of getting the job done, says most of the actual building work will go to UK firms.

Withers is the project manager for the department鈥檚 Overseas 黑洞社区s Operations, the body within the State Department that carries out work on diplomatic facilities and embassies across the globe. He says: 鈥淚鈥檇 be shocked if big UK firms weren鈥檛 already interested. The project will create lots of jobs and the bulk of the work will go to local firms.鈥�

He says that UK firms could carry out as much as 90% of the work, and even though the start date is so distant, he reckons the winning American contractor could be appointed later this year. The reason is that his department is looking into the possibility of letting the job as a US version of the Highways Agency鈥檚 early contractor involvement schemes.

Under US rules, a contractor is appointed when 35% of the detailed design is complete. Withers says: 鈥淒oing it this way would give us quality control, cost control and buildability.鈥�

That means that contractors can rest assured that they will not have to accommodate endless variations when the job gets to site. 鈥淲e鈥檙e not napkin sketch guys,鈥� says Timberlake. 鈥淭here will be some changes, but the final design will be very similar to what you see now.鈥�

Despite some remarks that the design looks like a big ice cube, Withers is pleased with Timberlake鈥檚 work. He says it combines good design with the usual needs of a US embassy abroad. These 鈥渘eeds鈥� largely boil down to security. 鈥淯nfortunately, in the world we live in we have to create a secure facility. But we didn鈥檛 want something intimidatory. We wanted the antithesis of 鈥楩ortress America鈥�.鈥�

And this is where the main UK/US work divide comes. He expects the contracts that will make up the fabric of the building, such as the cladding, the piling and the frame will go to UK subcontractors; the more sensitive areas of IT and the M&E will be reserved for US companies that have the requisite security clearance.

To get this work, David Vivian, chief of the architectural engineering branch of the State Department, suggested that UK firms should approach American groups that have built embassies in the past, or other major US firms that may be interested in the project.

Of course, just what constitutes a British firm is somewhat blurred these days: two that have already expressed interest in the work are Bovis Lend Lease and Brookfield, which are Australian-owned. 鈥淲e鈥檙e looking at it,鈥� says Ashley Muldoon, Brookfield鈥檚 executive director for Europe. 鈥淲e鈥檙e doing 85 million ft2 in North America so we have routes into the US.鈥� He thinks there is a good chance that the winning US firm will be on the hunt for a local partner. 鈥淭he US firm can get the contract and the clearance while the UK firm has the local experience.鈥�

One subcontractor that is definitely interested, and not afraid to go down the joint venture route, is Keltbray, the demolition and groundworks specialist. 鈥淚 think there鈥檚 a very good chance of the winner teaming up with a local contractor,鈥� says Brendan Kerr, its group chief executive. 鈥淲e鈥檇 be interested. We鈥檝e worked with Bechtel several times but if we didn鈥檛 know the firm that won it we鈥檇 be making representations to them.鈥�

Withers says the winning US contractor will be required to set up an office over here 鈥� in other words it won鈥檛 be managed remotely. 鈥淭his is only the beginning, there鈥檚 a lot of work to be done,鈥� he adds. 鈥淭here鈥檚 going to be a very elaborative consultation process in the next two years.鈥�

And despite the fact that the contractor will be American, there will be lots of involvement from interested parties in the UK before things start on site. The consultation process will include speaking to London mayor Boris Johnson, English Heritage, Cabe and local residents. It will also include speaking to Ballymore, the Irish developer of the Nine Elms site, from which it bought the five-acre parcel of land where the embassy will sit.

Richard Probert is Ballymore鈥檚 senior development manager, and he is pleased the design doesn鈥檛 resemble a fortress 鈥� which would be a problem for it, as it is trying to market a site with another 15 acres and 1,800 residential units. Probert is keen to make sure the front of the building 鈥� nicknamed 鈥淓mbassy Square鈥� 鈥� remains a civic focal point. 鈥淚 don鈥檛 want to see a load of Starbucks in there,鈥� he says. 鈥淲e need proper amenities for residents.鈥�

He thinks the design will stay largely true to the one unveiled last week. 鈥淚 think the planning authority [Wandsworth council] will have a big problem overturning the final results of a design competition. I suspect there will be some change but I think we can expect it to be still predominantly square and glazed.鈥�

And if the State Department鈥檚 men are true to their word, most of it will be built by British firms 鈥�

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