The Carrickmines Conservation Plan 2015-2025 was formally adopted by Dun Laoghaire-Rathdown County Council on the 13th February 2017 to provide a framework for the conservation and management of the site of Carrickmines Castle.

A Conservation Plan is a document that states why a place is significant, and develops policies to ensure that significance is retained in the long-term. It is driven by the need to understand why a place is important, and it provides a framework for managing the place so that its cultural significance is not lost in the future.  The Conservation Plan process was developed after the 1981 Burra Charter of ICOMOS (International Council on Monuments and Sites) which introduced the concept of cultural significance as the basis for conservation policy making and management. Conservation Plans were introduced to Ireland in 1998 by The Heritage Council as a useful tool to understand and protect historic sites, to secure funding for conservation works and particularly to achieve consensus for historic places where there are several elements of historic significance and conflicting priorities.

The Conservation Plan differs from other types of reports used for historic places such as management plans (which can have a wider scope and include financial planning and immediate works) and archaeological or architectural heritage reports (which are often prepared in response to a particular development proposal). A Conservation Plan instead focuses on understanding a place, and then translating that understanding into specific policies and actions to care for what is important about a site.

Conservation, at its most basic, involves handing on to future generations what we value. Conservation advisors are not there to stand in the way of change, but to negotiate the transition from the past to the present in ways that minimize the damage that change can cause, and maximize the benefits. Kate Clarke

The vision for the management of the Carrickmines Castle Site is that Dún Laoghaire-Rathdown County Council will raise awareness of the history of Carrickmines Castle, conserve the upstanding remains, provide supervised access to the site to members of the public where possible and facilitate reasonable access to the site for academic research. The Conservation Policies to achieve this vision are:

Policy 1: Preserve the surviving archaeological structures.
Policy 2: It is the policy of this Conservation Plan to raise awareness of the
history of Carrickmines Castle.
Policy 3: The site will be maintained in such a manner to protect biodiversity
while allowing safe reasonable access and safeguarding the archaeology of the
Policy 4: It is the policy of this Conservation Plan to provide intellectual and
physical access where possible to the site of Carrickmines Castle.
Policy 5: To permanently store archaeological material not accessioned to the
National Museum of Ireland below-ground at the Carrickmines site.
Policy 6: It is the policy of this Conservation Plan to manage and maintain the
shells of the remaining the farmhouse and outbuildings in a manner consistent
with the Department of Arts, Heritage and the Gaelteacht Architectural Heritage
Protection Guidelines for Planning Authorities (2011).
Policy 7: Dún Laoghaire-Rathdown County Council to implement the
Conservation Plan in consultation with relevant stakeholders.