SuperHome Database

Milton Keynes, Bletchley, Western Road

House Summary

Luke Smith and Zané Jaunsnikere

House Type:
1930’s semi-detached (solid brick)

Carbon saving:
70% - Remote Assessed  

  • Homeowner, Luke Smith, will share his experience of external and internal wall insulation
  • Front Facade – EWI – Western Rd
  • EWI – infra red – vs  neighbour
  • front detail
  • iwi studs
  • ewi detail
  • rear ewi
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  • img_0478
  • img_0476
  • Bletchey Super Home Windows
  • Bletchey Super Home Windows
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  • img_0469
  • img_0464
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  • Bletchey Super Home External Wall Insulation
  • Bletchey Super Home 1
  • Bletchey Super Home Front

Measures installed:

  • Condensing boiler
  • Double Glazing
  • External Wall Insulation
  • Floor Insulation
  • Internal Wall Insulation
  • Loft Insulation
  • Low Energy Appliances
  • Low Energy Lighting
  • Passive Ventilation

Upcoming events

This SuperHome is no longer available to view. For further information about the homeowner eco refurb please contact the SuperHomes team using the contact form.

What visitors are saying

“A lot of hard work but an unbelievable transformation and although not yet quite complete, this will be a beautiful, warm and comfortable family home”

Personal story:

I’m an architectural technologist and principal energy specialist at the National Energy Foundation and my partner Zané and I were keen to get ourselves on the property ladder. What we purchased (and all we were able to afford being first time buyers!) was a 1930’s former Milton Keynes Council property in Fenny Stratford that was in need of major refurbishment. Given my professional background and the fact that the home was cold and uncomfortable and energy prices are constantly rising, we decided to do a DIY refurbishment whilst attempting to also make the house as comfortable and affordable to run as possible on a limited budget.


Asides from the obvious, this refurbishment was an opportunity to put my money where my mouth is and demonstrate to as many people as possible just how rewarding it can be to install energy efficiency measures.

Property background:

The house is a 1930’s former Milton Keynes Council property that became privately owned via the Right to Buy scheme in the late 1970’s. The property was unloved and when we purchased it in January 2014 it had single glazing with broken window panes, no central heating system, blown pebble dash render, lots of mould and condensation problems, a cold and draughty floor and a hugely overgrown garden. It was in need of some serious TLC!

Key changes made:

We’ve refurbished the entire house ourselves, using contractors only to help with the external wall insulation, sign off the new heating system, change the consumer unit and plastering. What has been key for us is maximising the opportunities to do energy efficiency upgrades alongside work we needed to do anyway. External wall insulation as part of the need to re-render; floor insulation as part of reconfiguring the plumbing; internal wall insulation alongside replacing ceilings and windows etc.

Measures installed in detail:

  • 65% external solid wall insulation – 90mm rock mineral wool, silicone render
  • 35% internal solid wall insulation – 100mm Knauf Thermoshell mineral wool and EPS ecostud system
  • Suspended timber floor insulation – 200mm mineral wool + airtightness membrane
  • Loft insulation – 400mm mineral wool and eaves ventilators + insulated and draft stripped loft hatch
  • uPVC argon filled double glazing and composite external doors
  • Passive stack ventilation – Ventive chimney stack passive heat recovery ventilation alongside upstairs trickle vents and wet room extract
  • Condensing combination boiler and re-routing of primary pipework
  • Very good airtightness, down from 15m3/m2/h @50pa to 5m3/m2/h @50pa
  • Low energy lighting – mix of LED downlights and CFL bulbs
  • Low energy appliances – it’s our first home, so brand new low energy appliances all round
Benefits of work carried out:

Work is still in progress but the overall comfort improvement and reduced running costs are already evident. I’ve also undertaken a lot of detailed pre and during works testing including a number of air leakage tests at different stages, thermal imaging, in-situ u-values on all walls before and after improvement and a pre-works co-heating test (338 +/- 26 W/K). So lots and lots of quantitative and qualitative insights that we can share in due course!

Favourite feature:

Still work in progress but we’re both really happy with the new external appearance of the home. Lots of neighbours regularly compliment the work we’ve done and improvements we’ve made. Really looking forward to my first 12 month gas, electric and water bills as well!

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.