SuperHome Database

London, Haringey, Muswell Hill, Grosvenor Road

House Summary

Stewart McIlroy

House Type:
Edwardian 1900 end of terrace

Carbon saving:

Reported saving on bills:

Total invested:

  • Haringey SH
  • Wood store fence

Measures installed:

  • Ceiling insulation
  • Condensing boiler
  • Draught-proofing
  • Floor Insulation
  • Internal Wall Insulation
  • Loft Insulation
  • Low Energy Lighting
  • Secondary glazing
  • Solar Water Heating
  • Water Saving Devices

Upcoming events

Saturday 13th September 2014

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What visitors are saying

"The home owner had a very knowledgeable and hands-on approach to the improvements he had made. We were very interested in the insulation changes he had made."

“Very informative visit, enthusiastic home owner, we learned several possible ways of reducing heat loss from our home. All very practical and helpful.”

“Really grateful to Stewart and his family for their time, organisation and clarity of "the tour", very inspiring!”

"Enthusiastic and informative talk by the homeowner, full of specific practical advice, backed up with figures... several new ideas which we fully intend to implement."

"I learned a lot about what the owner had done to improve his home and how with an appreciation of the work involved."

"Clear, friendly, informative, intelligent and well prepared."

"A very informative tour. My house is similar in many ways so it will help me in the future with my own improvements. "

"Great practical advice which we can all do to improve our houses."


All of our family are interested in environmental issues including household energy efficiency, the countryside and wildlife. I also find DIY, using recycled products where possible, practical and fulfilling and a relaxation from my job as a management consultant. We have carried out the energy saving refit of our house for several reasons including comfort (a warm house is more comfortable than a cold house) plus doing the right thing in terms of reducing our carbon emissions. The energy efficiency renovation process has also been very interesting and satisfying. Helping others to reduce their emissions in a cost effective manner, including avoiding some of the blind alleys we went down, is also very rewarding

Property background:

1900 Edwardian end of terrace property over 3 floors including attic. All original features including sash windows and two working fireplaces now with wood burning stoves.

Key changes made:

All windows with secondary glazing.
All internal faces of external walls with internal wall insulation.
Underfloor sheeps wool insulation.
2 wood burning stoves (main one on ground floor).
Solar hot water.
New high efficiency gas boiler.
Continuous running heat recovery fan in bathroom.
Solar PV

Measures installed in detail:

  • Wooden suspended floors with 80mm ‘Thermafleece’ sheeps wool insulation & boarding
  • All internal faces of external walls insulated with 10mm ‘Sempatap’ internal wall insulation
  • Attic roof insulation of 100mm Kingspan, plasterboard plus 10mm ‘Sempatap’
  • Refurbished sash windows with ‘Magneglaze’ secondary glazing on all windows
  • Draft reduction through double doors to attic (& letter box!), heavy curtains,
  • New condensing boiler, replaced old 15-20 year old boiler. TRVs added.
  • Two wood burning stoves (‘Clearview Vision’ in living room heats whole house)
  • 2 x 2m2 solar panels for thermal hot water with large well insulated tank (‘AOS Solar’)
  • Continuous running low energy fan in bathroom (‘Vent Axia – Lo Carbon’)
  • Low energy lighting throughout
  • Water saving devices include; low flow shower, low flow washers in most taps
  • Living wall, living roof, pond and vegetables in garden plus pallet shed with green roof from recycled carpet (Green Roof Options)
  • 8x260W Solar PV panels (‘Ecodomus’)
Benefits of work carried out:

The main benefit of the refurbishment is that now the whole house is always warm and comfortable without being too stuffy or humid. We only need the central heating during mid winter and then for all 15 mins in the morning and mid afternoon. Cutting wood for the stove is also fun. The continuous running fan provides adequate ventilation and prevents condensation.

Favourite feature:

We enjoy the stoves the most including procuring, cutting, splitting and storing the wood. We use a mix of waste wood and tree surgeon trimmings. The main stove provides a focal point for the house and heats the whole house (including the bedrooms) without the need for a fan or use of the separate central heating system. Wood storage needs to be planned well in advance with logs split and aired for at least 12 months before burning. We use a moisture meter to ensure an efficient burn.

Project update:

At the moment we have just finished the garden shed made from pallets and with a green roof using recycled wool carpets.

Have had thermal image survey of whole house (inside and out) and now addressing the cold spots.

Updated on 04/03/2014

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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.