View interactive charts: economic output, London sectors, construction, arts, entertainment & recreation, finance & insurance, information & communication, professional, scientific & technical and real estate.
The latest Oxford Economics analysis shows London’s economic output strengthening with a 1.9% increase in GDP expected to have been generated in 2025. This momentum is however set to slow with growth falling to 1.2% in 2026, reflecting the national picture of a UK GDP slow down from 1.3% in 2025 to 0.9% in 2026.
Topping the list of our global cities is Hong Kong with an estimated year end 3.3% increase in GDP for 2025 (2.7% in 2026) followed closely by New York at 3.1% (2.8%, 2026). Berlin is slowly recovering from weak growth in 2024 with output having increased by an estimated 1.1% for the whole of last year
(1.8%, 2026). This could suggest a more optimistic outlook for Germany’s economy, which is currently the worst performing of the G7 economies by some margin. Across the border, Paris has seen a sharp drop in its growth rates. In 2024, it boasted the second-highest rate among our cities at 2.2%, but Oxford Economics think growth has since declined to just under 1% in 2025 (1.1% 2026) amid heightened political uncertainty and rising unemployment.
Globally, the information and communication sector continues to expand with sectoral growth across our comparator cities. London and New York are leading the pack with growth of more than 6%. While this growth is expected to continue in the coming years, its pace is forecast to wane from levels seen in 2025, with 2026 output growth slowing to 2.7% in London and 5.3% in New York. The sector’s performance is largely driven by increasing AI-related activity. S&P Global Research estimated that data centre and AI-related investments accounted for 80% of US private domestic demand growth in the first half of 2025. New York is set to benefit from this trend as AI company Anthropic announced investment into a new data centre in the city, part of a $50 billion investment in computing infrastructure. West London’s technology cluster is similarly set for a boost, with a £2.5 billion investment committed to three large data centres and an Innovation Hub. This surge is mirrored in Germany. As a response to rising demand, technology company Infineon plans to increase its investments by around €500 million in 2026, bringing their total investment for the year to €2.7 billion. This could help to boost the sector in Berlin, where output growth is comparatively weaker.
Not quite as strong but still pretty robust, are our cities’ professional, scientific and technical activities, with all except Berlin considered to have achieved year-on-year growth in 2025. Berlin’s comparatively weaker performance in this industry may not last long, with sector growth forecast to rise to 3.0% annually by 2028. In July 2025 the German government launched an €18 billion ‘high-tech agenda’ with investment into six key technology areas, positioning the country to capitalise upon the growing importance of this sector globally.
London has perhaps turned the tide on construction sector output. In 2025, it was the only city in our sample to experience growth in the sector. The building of data centres is set to provide further momentum to London’s construction activity, along with other cities attracting similar projects. Nationally, the growth in UK construction output for 2025 was largely driven by private housing repairs at 2.9%. Private new housing dropped by 1.9%, reflecting a sharp slowdown in residential construction. Hong Kong’s private sector construction site output fell sharply, down 18.1% in Q3 2025 versus the same period last year. The reverse is however true of public sector site output which increased by 7.7% over the same period. The overall effect was a reduction in output for 2025 of 2.8%.
Paris’ arts and entertainment industry saw a notable decline after a strong 2024, following 150 million euros in national budget cuts for the ministry of culture and 2.2 billion euros in budget cuts for local government. In contrast, London and New York’s equivalent sectors expanded by 2.4% and 3.1% respectively. The cuts are expected to result in up to 1,500 job losses in France, with a disproportionate impact likely in Paris, given the city’s significant national share of the industry.
In 2025, London’s financial and insurance sector remained in negative growth territory at -0.2% – a real cause for concern given the sector’s outsized contribution to the UK economy. It is forecast to creep back up by 0.8% in 2026. Conversely, Oxford Economics estimates that New York recorded an impressive 6.1% growth in 2025. Spanish bank Santander will buy US lender Webster Financial in the first half of 2026, signalling greater confidence in New York’s financial sector. Hong Kong also saw a marked turnaround with growth accelerating in Oxford’s estimates from 0.9% in 2024 to 4.5% in 2025. In 2026, it is forecast to tale off to 3.5%.