The proposals for the tower at the top of the mound incorporate much of the changes originally proposed in the tower at the top of the steps, retaining the new walkways and roof decking which formed part of the 2016 planning application for the tower.
The charity said the walkways would be constructed in a way which also helped to protect its historic stonework and would allow more visitors to take advantage of unrivalled views of the York skyline.
“The charity is seeking the views of the public on the designs, and hopes to submit applications for planning permission and Scheduled Monument Consent in 2020,” said the spokesman.
“Over the past few weeks, a new research project has been taking place at Clifford’s Tower, which sees historic buildings experts examining the conservation needs of the tower’s historic fabric.
“The research, which will continue until December, will help inform conservation works planned to take place alongside investment in visitor infrastructure over the next few years.”
Andrea Selley said the tower was one of York’s most important historic sites and English Heritage was committed to investing in it in a way that protected its historic fabric and improved the experience of those visiting.
She said scaffolding had gone up inside the tower so it could be surveyed in detail, prior to a £1.4 million conservation project.
“Over the year since we announced that we would not proceed with constructing a new visitor building at the base of the mound at Clifford’s Tower, we have been reflecting on our plans, discussing various options, and consulting with stakeholders in the Castle Gateway area, and in wider York,” she said