SuperHome Database

Redhill, Merstham, Radstock Way

House Summary

Drummond Richardson

House Type:
1950's-1960's mid-terraced house

Carbon saving:
65% - SuperHomes Assessed  

Reported saving on bills:
Yearly bills for 3 adult occupants are approx £300 electric / £300 gas / £175 logs

Total invested:
£13,850 (including £7,500 for the PV - which gives a return of approx £550/yr in FITs). See below for a breakdown in 'Property' tab.

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  • 8_green_roof_from_inside_s
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Measures installed:

  • Biomass Boiler
  • Cavity Wall Insulation
  • Condensing boiler
  • Double Glazing
  • Draught-proofing
  • Eco materials
  • Energy monitor
  • Floor Insulation
  • Green Roof
  • Loft conversion
  • Low Energy Lighting
  • Reclaimed Materials
  • Renewable Energy Supply
  • Solar PV Panels
  • Solar Water Heating
  • Triple Glazing
  • 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.

What visitors are saying

"Thanks for organising this very good initiative."

Personal story:

The house needed refurbishing when I moved in, it only had electric heating (storage for space and an immersion hot water tank). Whilst enduring the upheaval for the redecorating and heating upgrade it seemed wise, and an interesting challenge, to put in insulation and use reclaimed and sustainable materials wherever possible.


The fundamental reason is concern for the environment, but I’ve also enjoyed the challenge of reducing the household footprint, and creating a more comfortable and beautiful home.

Key changes made:

Breakdown of costings here, and whether fitted by the owner (minimal previous experience of DIY – works in I.T.).

Energy Saving Measures
– Perspex retrofit triple glazing throughout – £400 (owner)
– Cavity wall insulation – already in place
– Polystyrene 50mm insulation applied under most of ground floor – £50 (owner)
– Log burner + backboiler for hot water. Stove £1000 Fitting £500 Chimney parts £600 (chimney lined and stove fitted by owner, plumbing + some plastering professionals)
– Solar thermal panels £3800 (professionals)
– Solar PV panels 1.5kW £7500 (professionals)
– Low energy lighting £50 (owner)
– Structural work to establish a groundfloor party wall with neighbour, removing a heat loss wall (access tunnel) – this was a by product of extended the property, so not included as an energy saving cost. The extension was of the order of £10,000 (professionals)

Non Energy Saving Measures
– Reclaimed materials, lounge school gym wooden floor – (£400) (owner)
– Renewable materials – kitchen bamboo worktops – £350 (both)
– Water saving systems – £100 (owner)
– Log store with green roof – £300 (not energy saving)(owner)
– Converting to varnished floorboards all 1st floor (saving the need to carpet) – £300 (owner)

Measures installed in detail:

  • Double glazing, uPVC
  • Perspex retrofit triple glazing
  • Cavity wall insulation
  • 50mm insulation applied under most of ground floor
  • Log burner and water heating back boiler
  • Solar thermal panels
  • Solar PV panels on flat dormer roof
  • Low energy lighting
  • Structural work to establish a groundfloor party wall with neighbour, removing a heat loss wall (access tunnel)
  • Reclaimed materials (school gym wooden floor)
  • Water saving systems
  • Log store with green roof
  • Bamboo worktops
Benefits of work carried out:

I think many features are beautiful, obviously lower bills, there’s also the satisfaction upon completion.

Favourite feature:

Flowers and insects on the green rooves I find lovely

Common questions and answers for this SuperHome

How did you get the insulation for just GBP 50? What was involved in installing it? Is there anything about it that people might not anticipate, for example noise or sagging?+

This was a wooden floor put onto of a concrete base. ‘Battens’ of 4″ x 2″ were laid and the  flooring nailed to those lying across them, which left 2″ of gap for insulation, into which was put 50mm of polystyrene sheet, which is very cheap, hence £50. There’s no issue with sagging of course.

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.