Time Matter(s): Invention and Re-Imagination in Built Conservation: The Unfinished Drawing and Building of St. Peter's, the Vatican

Even though the idea of altering an existing building is presently a well established practice within the context of adaptive reuse, when the building in question is a 'mnemonic building', of recognized heritage value, alterations are viewed with suspicion, even when change is a recognized necessity.

This book fills in a blind spot in current architectural theory and practice, looking into a notion of conservation as a form of invention and imagination, offering the reader a counter-viewpoint to a predominant western understanding that preservation should be a 'still shot' from the past. Through a micro-historical study of a Renaissance concept of restoration, a theoretical framework to question the issue of conservation as a creative endeavor arises. It focuses on Tiberio Alfarano's 1571 ichnography of St. Peter's Basilica in the Vatican, into which a complex body of religious, political, architectural and cultural elements is woven. By merging past and present temple's plans, he created a track-drawing questioning the design pursued after Michelangelo