Preserving cultural heritage sites in India requires defining regulatory boundaries that reflect their historical integrity. While field surveys are effective for assessing a site’s authenticity, they often overlook unprotected or obscured features essential to understanding a site’s historical extent. This policy brief highlights the role of geospatial technologies—remote sensing, GIS, and sat nav—in identifying and delineating heritage landscapes beyond current protected areas. Case studies of Nalanda, Halebidu, Srirangapatna, and Bodhgaya reveal extensive archaeological features outside designated areas, demonstrating the need for boundary reassessment. The Brief recommends: integrating historical records with geospatial data to identify areas requiring protection, creating a national geospatial heritage database, and training heritage professionals in these methods. It also stresses engaging local communities. Leveraging these approaches can ensure more comprehensive conservation, enabling heritage sites to serve as sustainable cultural and economic resources.