According to its accounts for the year ending 31 August 2025, the London-based AJ100 practice saw its revenue increase by 23.5 per cent from £7.1 million in 2024 to £8.8 million.

The hike came despite the fall in fees from work outside the UK, which has dropped from 18 per cent of overall turnover in 2024 to 9.6 per cent during the latest trading period.

The 49-year-old practice said this reduction in overseas revenue was mainly attributable to the sale of its Prague-based trading arm.

However the company said it was continuing to land ‘opportunities to diversify its sources of income from overseas projects’.

During the accounting period the company, which has a wide portfolio of work from education and science schemes to office and housing design, also succeeded in turning a loss before tax of £742,000 in 2024 to a £189,000 profit.

The accounts show that the average number of employees in the financial year had edged down from 71 to 68.

However, the company told the AJ that current employee numbers were actually up 15 per cent compared with January 2025, even though it let go three ‘relatively short-serving staff’ in December following the end of project stages.

Looking forward, a director’s statement lodged with the accounts reads: ‘The prospects of growth within the UK construction market remain unpredictable and we are seeing greater uncertainty from clients, with limited appointments by work stage.’

Jestico + Whiles’ Centre for Design and Innovation, St Paul’s Girls’ School which was shortlisted for the best school project at the 2025 AJ Architecture Awards. Photo: Killian O’Sullivan

In September Jestico + Whiles won approval for a comprehensive refurbishment of Alison and Peter Smithsons’ iconic 1950s Smithdon High School in Hunstanton, Norfolk.

The practice is working with heritage consultants Purcell Architecture and developer and main contractor Bowmer + Kirkland will collaborate with the school to ‘conserve and repair the original buildings’ while updating the infrastructure to improve accessibility and reduce energy costs.

Elsewhere, fellow AJ100 practice EPR also reported a growth in its turnover and profits.

Recently posted accounts submitted to Companies House for the year ending 31 March 2025 show that EPR Architects Group’s turnover rose from £20.9 million to £22.2 million.

Profit before tax went up from £585,000 in 2024 to £1.4 million, though there was a contraction in average staff numbers from 243 to 232.

A spokesperson for EPR described the 2024-2025 trading period as ‘positive’. They added: ‘We achieved our 2030 carbon reduction target ahead of schedule, continued to benefit from our diverse sector expertise, established EPR Hotels International and saw growth in our Manchester and Poland studios as well as our interior design team.’