To build or not to build? In today’s episode we’re finding out how we can reuse our architectural heritage to keep up with the needs of our changing world, while still honouring the past. We head to Japan to hear how the city of Kyoto is finally getting serious about preserving its iconic Machiya townhouses. Anna Keay from The Landmark Trust is rescuing old castles and medieval halls all over the UK, turning them into affordable holiday homes for all, and UCL Professor Dr. Kalliopi Fouseki shares her thoughts on an inspirational heritage project that’s breathing life back into rural Chile. Plus: Topοsophy’s key lessons on reusing architectural heritage, and how it’s turning the iconic Arsakeio Building in Athens into the city’s first Food Hall.