Successful Euro 2028 bid will see Hampden improved
Hampden will have an upgrade if a joint bid from the UK and Ireland to host Euro 2028 is successful.
However, Scottish Football Association chief executive Ian Maxwell added that the exact nature of the improvements was still to be decided.
Hampden is the only Scottish stadium to be included in the final dossier, which has been submitted to UEFA.
A total of 10 stadia across five countries will host matches if the bid beats a rival offer from Turkey to stage the European Championship finals when the UEFA executive committee votes in October.
The SFA recently bought the national stadium from long-time owners Queen's Park, prompting an intensification of debate around the views and atmosphere of the stadium, which was largely rebuilt in the 1990s.
Less significant, and in some cases temporary, alterations were made ahead of Hampden staging the athletics event in the 2014 Commonwealth Games and again when the stadium hosted four Euro 2020 matches.
Maxwell said in an SFA video: "We're always looking to improve the stadium and that happens alongside Euro 2028.
"Obviously as the stadium owner now, we want to make sure the supporter experience is as good as it can be.
"There will be some additions and improvements that are made as part of the Euro 28 bid and hopefully when we're successful, we will work out exactly what those will look like."
The bid team has predicted staging the tournament could bring a combined £2.6billion worth of benefits to Scotland, England, Wales, Northern Ireland and the Republic of Ireland.
Maxwell said: "We missed out on that to an extent during Euro 2020 because of the Covid restrictions.
"We didn't see the full benefit of hosting full stadiums at Hampden as much as we would have liked and it's important to put that right.
"We can't underestimate the impact that would have on Glasgow and Scotland in terms of growing and developing the game, which is our primary objective.
"There is no better way to engage an audience, and a young audience in particular, than seeing Europe's best male players coming to Hampden and participating in such an iconic tournament."
Most of the grounds to be used will be in England - Wembley, the Tottenham Hotspur Stadium, St James' Park, Villa Park, Manchester City's Etihad Stadium and Everton's new home, which is still under construction.
The Principality Stadium in Cardiff, Dublin's Aviva Stadium and Casement Park in Belfast - which requires building work - are the other venues being proposed along with Hampden.
The Scottish Government has welcomed the bid.
First Minister Humza Yousaf said: "Scotland has a well-earned global reputation as an outstanding host of major events, and football - our national game - is a powerful force for good in communities across the country.
"It is this combination which underpins Scottish Government support for the joint bid.
"Together with the Scottish Football Association and partners across the bid nations, I am excited by the prospect of building on the successful delivery of Euro 2020 in Scotland and our country hosting another incredible championship.
"UEFA Euro 2028 will have a significant global reach and has the potential to leave a positive lasting legacy in Scotland by generating significant economic, environmental and social benefits."