Vale House Farm: Low Energy Retrofit



A unique Victorian farmhouse overlooking Vale House Reservoir in the Peak District National Park. The homeowners bought this large family home and soon discovered that it was very cold in the winter due to its solid uninsulated walls and a very old heating system. Mantis Energy provided a retrofit plan to assess all possible building fabric improvements and low-carbon heating options. The home now benefits from Woodfibre insulation used in the walls and roof spaces, new thermally efficient windows, a ground-source heat pump system, and solar PV panels.

Design Team

CODA studios : Architect & Lead Designers

Mantis Energy : Mechanical and Electrical Engineers


  • Energy Retrofit Plan
  • Heat loss calculations
  • Air Pressure Test & EPC Issue
  • Heating & hot water layouts
  • Solar PV layouts
  • Hot & cold water schematics
  • Ground Source Heat Pump Design
  • Building Fabric Specification