Developers behind plans for 45 new homes on land at The Elms are reconsidering the proposals after Thame Town Council objected to the application.
Councillors objected to the plans at a meeting on Tuesday night.
The reasons for the objections include ‘ensuring that the public benefits outweigh any harm or loss to the significance of The Elms as a grade II listed building.’
Developers Rectory Homes has already held meetings with members of South Oxfordshire District Council (SODC) with a view to changing the plans.
A spokesman for Rectory Homes said: “The changes are likely to include a reduction in the total number of homes on the site, changes to the layout and improved cycle and footpath links.
“We would like to reiterate that there is absolutely no proposal whatsoever to build on the existing public park, contrary to some recent comment.
“In fact our proposal will create more than one hectare of new public open space linked to Elms Park by opening up private land to the public for the first time.”
New housing on the site will also fund improvements to the park.