LONDON--(BUSINESS WIRE)--Rising investor demand drove London office yields to their lowest level since 2023, according to data from CoStar, a global leading provider of online real estate marketplaces, information and analytics in the property markets. Based on a three-period trailing average, the transaction-based office yield in London decreased by 130 basis points last year, settling at 5.9% at the end of the fourth quarter of 2025. The average regional yield increased by 70 basis points to. ...