The firm is expected to start work on Westminster Council’s Ebury Bridge Estate phase 2 rebuild in September delivering five housing blocks rising to 19 storeys.
Confirmation of the big project catapulted McLaren to top of the July contracts league.
Another private builder Bowmer & Kirkland came in second place with a dozen project wins totalling around £320m, including Ilkley Grammar School rebuild in Yorkshire worth £52m and a £45m job to rebuild Ormiston Sudbury Academy in Suffolk.
Top 10 – work won in July
Balfour Beatty ranked third on the strength securing the job to build new rail freight branch line from Saxmundham to the Sizewell C nuclear power station project temporary construction area values at around £150m.
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According to data compiled by Barbour ABI, the top 50 contractors saw the value of new orders jump 14% to £4.4bn with the number of projects secured up from 120 to 144 m onth on month.
The tables for most successful work-winning firms over the last 12 months Sir Robert McAlpine push Mace into second with Morgan Sindall taking third place over Kier.
Top 5 – Total wins 12 months to July
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Among the other big orders taken last month Ferrovial secured a contract worth around £230m from National Grid for a 2.2km tunnel as part of an extensive upgrade to electricity infrastructure between Grain and Tilbury.
Other infrastructure wins included Wills Bros Civil Engineering taking a section of the A9 upgrade in Scotland between the Tay Crossing and Ballinluig.
Kier bagged a £139m order for Seven Trent’s Wanlip sewage treatment works as the promise pipeline of water infrastructure investment starts to be released.
On the building side Bovis tooks it second major job in London since being rebranded with a £220m order for the One Museum Street 19 storey tower project next to the British Museum. This follows on from the signing of technical services agreement in June to deliver another London tower at 60 Gracechurch Street for Obayashi Properties and Sellar.