Month in numbers

10% The estimated amount the cost of installing a domestic conservatory could go up if homeowners are forced to comply with Part L of the Building Regulations on insulation.

24 The best internal temperature, in centigrade, for offices this summer, according to the British Council for Offices. It says letting temperatures rise from the current air-conditioned norm of 22ºC would slash energy bills.

36,000 The number of jelly beans consumed during negotiations for the refinancing of Taylor Wimpey’s £1.5bn debt, finally completed after 10 months of all-night sessions.

750,000 The number of homes the London Array in the Thames Estuary – the world’s largest offshore wind farm – could supply with electricity. The first 630MW phase begins this summer.

£4.6m The damages claim brought by the All England Lawn Tennis Club – aka Wimbledon – against architect BDP and subcontractor FB Ellmer over alleged problems with the nine-year-old Millennium Building at the club.

£150m Value of Trans-port for London’s contract to expand Bond Street tube station in central London. Seven contractors have tendered and a shortlist of four will be announced in July.

£2bn The value of the Highways Agency’s framework to extend motorway capacity onto hard shoulders, published in the Official Journal of the European Union.