One of Britain’s biggest property developers has reinforced the growing shift to a return to office working, saying that occupancy in its central London offices has grown to an all-time high and the value of its portfolio has returned to growth. The improvement in the market helped Landsec, which owns offices and retail locations such as the Bluewater and Trinity Leeds shopping centres, bounce back to a £243m pre-tax profit in the six months to the end of September. The company, which has reduced its assets in the City of London post-Covid, had reported a loss of £193m in the