SuperHome Database

Cornwall, St Dennis, Hendra Road

House Summary

Sharron Kelsey

House Type:
1917 Semi-detached Cornish cottage

Carbon saving:
77% - Remote Assessed  

  • Cornwall solar panels
  • dhfdhj
  • Cornwall, St Dennis, Hendra Road

Measures installed:

  • Double Glazing
  • External Wall Insulation
  • Heat Pump (Air Source)
  • Internal Wall Insulation
  • Loft Insulation
  • Low Energy Appliances
  • Low Energy Lighting
  • Water Saving Devices
  • Wood Stove

Upcoming events

Early interest in Open Days encourages SuperHome owners to host more events. If you'd like to visit this property please contact the owner and let them know. SuperHomers are often happy to respond to questions about their refurbishment project by email between times. Please read ‘more on contacting this SuperHomer’ before you make contact.

Property background:

Semi-detached Cornish cottage approx 100 years old with solid granite stone walls (approx 50cm thick) and slate roof. Ground and first floor, with accessible storage in roof space.

Internal floor space is approx 89.5 sq m (excluding loft and after internal insulation installed). External length of house is 9.7m and side is 7.25m (including thickness of insulation)

Ground floor is concrete with original parquet flooring in what would have been the front rooms (originally 4 rooms downstairs and 4 bedrooms upstairs), carpet with thick underlay in back part of sitting room and vinyl in kitchen area. Hall is tiled with original tiles.

Key changes made:

  • Front of house – double glazed (2 bay windows on ground floor and 2 bedroom windows)
  • Front of house insulated internally (to maintain look of house), side and back walls insulated externally. Externally XP system on phenolic 60mm board, internally Isover IWI complete system.
  • All flooring in loft has carpets (reused from elsewhere in the house) to provide additional insulation
  • Open fire used for additional heating in winter using naturally dried wood (sourced from my partner who is a tree surgeon in Cornwall) and old pallets (from a local roofing tile company)
  • Air source heat pump. New 250 litre water tank. Water only heated to 50 degrees C with anti-legionnaires cycle once a week.
  • 16 panels by SolarWorld model SW-250-M-AB to provide 4MW. Inverter by SMAm model SB3600TL-21. Generation meter by Landis and Gyr, model 5253B
  • Samsung monobloc air source heat pump with SPF of 2.7. Nine new radiators throughout house with TRVs (except bathroom) with Honeywell wireless thermostat kept in one of the bedrooms (currently set to 17 degrees C)
  • New LED lighting in kitchen (previously fitted halogen lights removed as not enough roof space for them to be safe). Low energy light bulbs elsewhere (including outside light).
  • LEC fridge rated A+. New electric built-in oven by Smeg (model SF372X) rated A.
  • Low flush toilet cistern. No washing machine so wash by hand and occasional laundrette visit for larger items. Water butts to catch rainwater from sheds etc for use in garden
Measures installed in detail:

  • Air source heat pump
  • Double glazing
  • External insulation
  • Internal insulation
  • Loft insulation
  • Low energy lighting/appliances
  • Partial roof insulation
  • Photovoltaic panels
  • Seasonal open fire heating
  • Water saving devices
Contact this homeowner

Assessment types

SuperHomes Assessed

A home that has been visited and assessed by us and confirmed as reaching the SuperHome standard, which demonstrates a 60% carbon saving.

Homeowner Reported

Information has been provided by the homeowner about their home and energy use prior to the installation of measures and following their installation which demonstrates a carbon saving. This information has not been verified.

Remote Assessed

The homeowner has provided information on their home including what measures have been installed which has enables an assessor working on our behalf to assess their carbon savings. This home has not been visited to verify the measures installed.


This home has not been assessed, but the homeowner has reported what measures have been installed. It may be that this home is awaiting assessment.