Inflationary rent increase and a fall in voids helped Housing 21 post growing turnover and operating surplus, its half-year results showed. The not-for-profit provider of retirement living and extra care posted a 4.1% rise in turnover during the six-month period to 30 September 2024, reaching £143.8m (HY 2023: £138.1m) mainly due to a 7.7% annual…