Manchester United chief executive Richard Arnold has warned the club will be "disciplined" in their plans to improve facilities at Old Trafford.
The club appointed Populous as master planners to assess options for redevelopment of the stadium earlier this year and are continuing to work on potential options.
Speaking on an investors' call after United announced their latest financial results, Arnold said the club were determined to give fans the facilities they deserve, but that they wouldn't overspend in the current financial climate.
"For fans at Old Trafford, we believe they deserve excellent facilities and experiences when attending matches," said Arnold.
"Earlier this year, we appointed master planners to explore options for potential redevelopment of our stadium and the club-owned land which surrounds it. We are at an early stage of a multi-year project and will continue to gather input and feedback from our fans and other stakeholders on these options before making any firm decisions, and we will update the market in due course.
"While remaining committed to long-term investment in the stadium, we will be disciplined in our capital plans, which must be sustainable, and mindful of the macroeconomic pressures and inflationary environment currently impacting the UK and wider global economies."