The study's major objective is to demonstrate that historical structures and locations are completely accessible to all people. While the required architectural modifications are performed in historic buildings and locations, they are intended to provide suitable solutions for everyone, not just a particular impaired group. The goal is to identify architectural alternatives that can be quickly implemented while preserving the original values. Individual and in-depth interviews with people with disabilities were done using questionnaire, interview and observational procedures. Successful examples from across the globe were scanned using scanning and descriptive techniques and project data were then examined and compared. The connected, comfortable, convenient, convivial, and prominent (5C) characteristics from the LPAC London Strategy were taken into account in Sivas city's monitoring and spatial analytic methodologies. Projects for architectural applications were created and technical data and solution suggestions were given using the original methodology while maintaining the integrity of the architectural language. It was shown that enhancing the accessibility of historical structures and locations has an impact on how many handicapped people participate in cultural events. Making historical structures and locations completely accessible would enhance the city's identity. The historical structure and setting are more accessible thanks to thoughtful and appropriate design arrangements. The architectural modifications necessary to enable complete accessibility may also be done to old structures and locations. Without compromising the texture, it is feasible to make historical and protected buildings accessible. The discussion environment, physical interference sensitivities in registered monuments, consideration of the needs of numerous different disability groups in the design of architectural arrangements, difficulties in correctly and effectively communicating with disabled people, and ethical sensitivities all contribute to the study's limitations. The research influenced designers to raise awareness of the need to make our surroundings more accessible. Additionally, field research was done in five particular Sivas buildings with people who are orthopedically, visually, or both. And as a result, the ability to build user-oriented solutions has been established. The unique significance of the research lies in its richness in addressing the concerns of appropriate intervention to registered structures while simultaneously taking into account the balance of preservation and usage in historical buildings and places with the topic of universal design. The research is also a thorough paper on the subject of duties resulting from legal requirements. It may be the first study in the literature to thoroughly examine architectural choices made to promote future research by increasing awareness of the accessibility of historic sites and structures.