The chief executive of JPMorgan has given final approval on a significant three billion pound office complex in London after commitments from British authorities about pro-business policies.
The Wall Street banking giant, which together with Goldman Sachs disclosed major UK investments right after escaping additional levies in Chancellor Rachel Reeves's financial statement, formally signed off the previous week.
This decision came after a meeting to New York by Varun Chandra, that conferred with the JP Morgan chief to provide assurances about the government's policies.
The discussions occurred shortly prior to the chancellor announced £26bn in tax rises in a budget that protected financial institutions from higher levies, following significant pressure from the banking industry.
"The development ... would potentially been canceled if this financial plan had been seen as anti-prosperity."
On Thursday morning, the banking giant revealed plans to construct a substantial building in the docklands area, which will become its new UK headquarters and host the majority of its London employees.
The financial institution emphasized that the development would be contingent upon "supportive government policies in the UK".
The financial institution has projected that the investment could generate substantial economic value to the UK economy over the next six years.
The government official expressed enthusiasm about the investment, calling it a "multibillion-pound vote of confidence in the nation's financial future".
A source familiar with the bank's investment strategy indicated that the investment choice was "based on multiple factors" and that "it was impossible to predict whether banks were going to be subject to additional levies before the budget".
The banking executive stated that the "British authorities' focus of business expansion has been a critical factor in helping us make this choice".
A second financial institution announced that it would expand its UK regional presence and hire 500 staff, in a move that would more than double its employee numbers in the UK's second biggest city.
The government had examined expanding the bank levy in the UK, as it looked at ways to raise revenues after opting not to implement higher personal taxation, but ultimately decided against the measure.
Banks in the UK are subject to a 28% corporation tax rate, that is higher than the standard 25%, as well as a separate levy on their British operations.