The phased works would create a new perimeter fence line, turnstiles, covered fan zone and ticket office, refreshment kiosks, outside broadcasting area, media facilities and secure away team coach parking.
The new south stand would have a capacity of 6,800 seats with 60 elevated wheelchair places, with a tunnel for grounds staff and emergency access in the south-east corner.
The north stand extension plans provide an extra 1,200 seats, while the east stand has an additional 1,800, along with a central camera platform and press seating.
A big screen will be installed in the north-east corner of the stadium.
A Changing Places facility, sensory room, 10 new accessible lifts, bike parking and 590 parking spaces are also in the proposals.