SuperHome Database

Sheringham, St Austins Grove

House Summary

Steve Brown

House Type:
1960 Detached Bungalow

Carbon saving:
75% - Remote Assessed  

  • old house front
  • house back
  • boiler
  • construction

Measures installed:

  • Cavity Wall Insulation
  • Condensing boiler
  • Draught-proofing
  • External Wall Insulation
  • Floor Insulation
  • Loft Insulation
  • Low Energy Appliances
  • Low Energy Lighting
  • Mechanical Ventilation Heat Recovery
  • Solar Water Heating
  • Triple Glazing

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.

Personal story:

Having living in London for many years (Gemma all her life) and in a draughty Victorian house, we wanted to build a low energy house and also move out of London.
We had made some low level attempts to improve the London house – reducing draughts round windows and floors but the pull to move out tempered the ambition because the cost was too high for a short term benefit.

Initially we were looking to carry out a self build but, after lengthy searches for land, decided that a bungalow would be the best option to achieve the dream.
We chose Norfolk for a number of reasons – the sea, relatively close to London as we have friends and family there still, food, good access to outdoor activities like walking and running.

Property background:

1960 Detached Bungalow (115m2 incl extension~10m x 11m)
2016 extension (35m2)


Key changes made:

  • New – Triple glazed – U=0.83 Green Building Store Performance range windows
  • New installed draught-proofing
  • Cavity filled walls
  • External wall insulation – 140mm EPC U=0.12
  • 270mm sheep’s wool – U=0.13 loft insulation
  • Floor dug out and 200mm Jabfloor laid down with concrete slab over the top. U=0.13
  • Whole house MVHR installed. Airflow (Vallox) 96SE with summer bypass                               PHPP calcs carried out:- 13W/m2
    – 22 kWh/(m3a)Actual air tightness measured as:
    – ACH = 0.91
    – Permeability @ 50Pa = 0.737 m3/h/m2″
  • Lowest power (9kW and will operate down to 3kW) condensing boiler installed–  Worcester Bosch Greenstar 9i system boiler
  • 2 x 1.5kW radiators in living room and dining room. 1 x 365W dual fuel towel rail in bathroom
  • W-B Greenstore 250 litre TC (Twin Coil) Indirect Unvented Hot Water Cylinder
  • All chimneys removed
  • Worcester Bosch Solar-Lifestyle (about 4.4 to 5.0 m2) solar thermal
  • Mainly LED lighting throughout
  • Fridge / Freezer, TV, Washing Machine – A rated
  • Planned 1380 litre rain water reservoir for gardening use only
Measures installed in detail:

  • Cavity Wall Insulation
  • Condensing Boiler
  • Draught-proofing – 0.91 ACH (0.74 m3/h/m2)
  • External Wall Insulation (U-old=0.17W/m2K; new 0.12)
  • Floor Insulation (U=0.12W/m2K)
  • Loft Insulation (U=0.13W/m2K)
  • Low Energy Appliances
  • Low Energy Lighting
  • Solar Hot Water Thermal Panels
  • Triple Glazed Windows (U=0.85W/m2K)
  • Whole house Mechanical Ventilation Heat Recovery
  • PV Solar installed 2018
  • Space heating demand (theory) – 22kWh/m2/year
  • Heat load (theory) – 13W/m2
  • 2 x 1559W radiators for whole house
Benefits of work carried out:

One of the best side benefits is air quality within the house. The lack of draughts and MVHR means the air is always changed and filtered and make for a very pleasant living environment.

Favourite feature:

Solar hot water – Boiler is switched off from March to October every year!

Project update:

PV Solar Installed Dec 2018 as part of Norfolk council initiative to get the last Feed in Tariff

Updated on 21/12/2018

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.