Manchester United are to carry out "significant structural work" at Old Trafford to accommodate more than 300 new positions for disabled supporters, reports BBC Sport.
The work, to be completed by August, will involve moving 2,600 season-ticket holders over the next three years.
Old Trafford's capacity will be reduced from just over 75,000 to about 73,300 because of the changes.
The new positions for disabled supporters will see the East Stand accessible platform extended across and into the Sir Alex Ferguson and Sir Bobby Charlton Stands.
Though structural work will be complete by August 2017, the use of the spaces will be phased in while existing season-ticket holders are moved.
United's group managing director Richard Arnold said: "Old Trafford is a home for all United fans.
"These changes will help many more of our loyal disabled supporters to attend games to watch their heroes."
Manchester United Supporters' Trust welcomed the expansion of disabled facilities but said it "noted with concern" the impact it would have on existing season-ticket holders.
It added: "We will also be making a strenuous argument for general expansion of stadium capacity."