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E17 · SEASON 2Delivery & retrofitAI & data65 min · 12 August 2026

The One With… the Engineer Turned AI Innovator and the 300-Year-Old Estate

With Ranjeet Bhalerao & Simon Tranter, MapMortar · Howard de Walden Estate.

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About this episode

Ranjeet Bhalerao left his consultancy job after a £100k study could model just 5 of 300 buildings. He founded MapMortar.io to fix that. Simon Tranter has to decarbonise nearly 900 mostly-listed buildings across Marylebone by 2040 — and he's the one actually using the tool. One sells the fix. The other tests it in the real world. Alex has never used it, so he asks the awkward question: does AI-led retrofit planning change what actually gets built — or just produce a better-looking version of the problem?

In this episode

  1. 01
    Why "stop counting, start cutting" is the whole argument
  2. 02
    The £100k study that modelled 5 of 300 buildings — and started a company
  3. 03
    Why no landlord wants another dashboard: "outcomes, not software"
  4. 04
    Modelling a building from just its address: maps, LIDAR, EPC data
  5. 05
    The head-to-head — AI model vs on-site consultant survey. How close?
  6. 06
    EPCs as a milestone, not a destination
  7. 07
    Sequencing retrofit to tenancy and refinancing — when sustainability is just asset management

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