Proposals include two new hotels, together with an arcade extension incorporating new retail facilities, a club shop, restaurant and extensive conference and banqueting space.
The plans also feature new offices and a basement nightclub that will help the club’s business development.
"The development is designed to increase non-match-day income streams at Elland Road, which in turn will support and supplement the club's efforts on the pitch," said Shaun Harvey, Chief Executive of Leeds United.
“It will play a vital part in the re-generation of the area, and will also create opportunities for local people."
Leeds currently lie fifth in League One and are now guaranteed a play-off place for a second successive season ahead of their final day fixture at home to Northampton on Saturday.
The Whites lost 1-0 to Doncaster in last year's Wembley final.
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